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ORTEC MAESTRO-32 v7 User's Manual 777800P

1. 1 022 MeV Double Escape D peaks are peaks Photon Flags for which two 511 keV photons have escaped e Gamma Rey G the detector Both single and double escape akan p y P peaks are broader than gamma ray peaks Neither C Single Escape D can be used for activity calculations because the C Double Escape DI intensity of the peak is not related directly to the Peak Flags intensity of the full energy peak Nonetheless m i y SN p Westen gt Not In Average A these can be included in the library to account for the peak in the spectrum Cancel The Not In Average A flag in the Peak Flags section of the dialog should be set for these peaks All the peaks marked as Key Line K must be present before the nuclide will be listed as present on the report If no lines are marked as key lines the nuclide will be listed as present if the first line is in the spectrum Fig 105 Edit or Manually Add Library Peak Values 7 2 3 5 Adding Nuclide Peaks To add a peak click on the peak just below the desired insertion point in the peak list then click on Insert This will open the Edit Library Peak dialog all the fields will be blank Enter the necessary information for the peak and click on OK 7 2 3 6 Rearranging the Peak List The entries in the peak list can be rearranged with the Cut and Paste buttons Several peaks can be cut at one time from the list then pasted back into the list into a d
2. 10 Isotope Markers 11 Preferencia 4 6 11 1 Points Fill ROJ Fill All 4 6 11 2 Spectrum Colors 4 6 11 3 Peak Info Font Color 4 7 Window e aa ed 4 8 Right Mouse Button Menu 46 Star Re ee oro DOR a oh E eebe Mes SERRE 4 Copy to Buffer 5 6 D D D ch Ch Eh Eh Ch Ch Eh Ch CN D D D D D D D D D D D D D D D D D D D e ZOOMIN ii s ZOOM Out irrita 7 Undo Zoom In 8 Mark ROL prin H Clear ROI 10 Peak Info ER 11 Input Count Rate Sl AS E eee ee eg 13 MCB Properties D D D D 00 00 o0 00 o0 00 Co o0 00 00 00 D D 5 KEYBOARD COMMANDS 5 1 Introduction o ooooooooo o 2 Marker and Display Function Keys 5 2 1 Next Channel 52 2 INGROSSO 5 2 3 Next Peak AA D D D D D OO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 OO 00 00 00 00 VI M I O 00 00 00 00 00 00 00 00 00 C O Ch S vw vw VD MM VD 000000 JJ Ch Li Vi i DS A GO GO UY YININN ra ra Fa D WO OO O O BR BRR Re TABLE OF CONTENTS 5 24 Nest Library Entry EE 94 II rl A EE 94 5 2 6 Jump Sixteenth Screen Width osc de de Ee EE Ree eR eee 95 5S2 eH ROM EE 95 5 28 Cleat ROM sig setae pease ak acd Gees gh Bee ea ae RSE BU oot SUG OER 95 5 2 9 KH ele EE 95 5 2 10 Compare Vertical Separation cs sassiiapa wd
3. Baseline Zoom keeps the baseline of the spectrum set to zero counts The right most part of the toolbar is a drop down list of the available Detectors Fig 9 To select a Detector or the buffer click in the field or on the down arrow beside it to open the list then click on the desired entry The sidebar will register your selection 14 3 DISPLAY FEATURES Finally note that as you pause the mouse pointer over the center of a toolbar button a pop up tool tip box opens describing the button s function Fig 10 Buffer v Buffer 0001 BENCHI MCB 137 Input 1 Ly 0002 BENCH1 MCB 137 Input 2 0003 BENCH1 MCB 138 Input 1 0004 BENCH1 MCB 138 Input 2 0008 Station 4 0010 Station 6 Right Fig 9 Drop Down Detector List Stop acquisition Fig 10 Roll Over Toolbar Tool Tips 3 5 Using the Mouse The mouse can be used to access the menus toolbar and sidebars adjust spectrum scaling mark and unmark peaks and ROIs select Detectors work in the dialogs every function in MAESTRO except text entry The following sections describe specialized mouse functions 3 5 1 Moving the Marker with the Mouse To position the marker with the mouse move the pointer to the Start desired channel in the Expanded Spectrum View and click the left Stop mouse button once This will move the marker to the mouse position Clear This is generally a much easier way to move the marker around in Copy to Buffer the spectrum than us
4. 4 uw Look in J User x E e Ed Name Date modified dy O 7 5 2012 8 07 PM Baus ze 5 8 2012 12 45 PM Bu 200 MAE v7 Cx v8 Co60 Cs134 Spc 6 28 2012 5 21 PM Wiom 200 MAE v7 Cx v8 Co60 Cs134_2 LIST M 6 28 2012 3 59 PM ua 200 MAE v7 Cx v8 Co60 Cs134_2 LIST M 6 28 2012 4 04 PM E File name 200 MAE v7 Cx v8 Co60 Cs134_120703_1 Spe Files of type SPC Format Spectra M Cancel M Show Description Integer SPC Format 16384 Channels Co 60 and Cs 134 on endcap Fig 92 The Recall Spectrum File for Plotting Dialog The Recall Settings dialog is another standard Windows file open similar to Fig 92 All of the settings specified on the Options Plot dialog can be saved in the settings file The file is saved in the Save Settings menu item Various groups of settings can be saved and recalled here to make the desired plots or to be used in the command line mode The Print Plot command opens a standard Windows printer dialog Select the desired printer from the Name list and optionally adjust the Properties before printing 128 7 UTILITIES 7 1 2 Options The Options menu is shown in Fig 93 These menu items control the print settings and WINPLOTS operation Plot Save Settings on Exit 7 1 2 1 Plot Always on Top The Plot Options dialog is shown in Fig 94 These settings Fig 93 The Options are all stored in the default settings file and reloaded when Menu WINPLOTS is next
5. CurDir Starting current directory of MAESTRO Loop Current value of the loop counter zero based Loop1 Loop counter plus 1 Bel ASCII bell character CR ASCII carriage return character FF ASCII form feed character LF ASCII line feed character ESC ASCII escape character ShortPath Relative pathname of the spectrum file ShortBase Relative pathname of the spectrum without the and extension Password Value entered in ASK PASSWORD command Owner Value entered in ASK PASSWORD command The filename variables are updated each time a READ operation is performed The READ operations are LOAD RECALL RECALL_CALIBRATION RECALL_ROI STRIP 6 4 JOB Programming Example A common operation that is ideal for a JOB file is the collection of many consecutive sample spectra without user intervention An example of this is the collection of a series of spectra to show the radioactive decay in a particular sample This process can be described as follows 1 Set the Detector parameters such as live time 2 Start the acquisition 108 6 JOB FILES Wait for the acquisition to stop Integrate the nuclide peak Record the peak area Repeat this for the required number of samples Se e By looking at the list of steps above and the explanations below the necessary commands can be determined and written down The first step in the process is to initialize the Detector to the condition needed o
6. Turning on this feature automatically sets the minimum protection time highest throughput rate based on your current Rise Time and Flattop settings however you can adjust this value at any 43 MAESTROS v7 Software User s Manual time Each time you change the rise time or flattop the DSPEC 50 will automatically set itself to the new minimum protection time Training the Resolution Enhancer The Resolution Enhancer operates by measuring the rise time collection time of the pulses and adjusting the gain based on the rise time This is done on each pulse The gain adjustment value for the rise time is stored in a table The values in the table must be set by training the Resolu tion Enhancer Marking the Resolution Enhancer checkbox enables disables the learning mode Note that once trained the enhancer operates continuously until disabled as discussed in Step 13 below To train the enhancer 1 Set the bias gain rise time flattop and PZ as you would for data collection 2 If you wish to use LFR Mode turn it on 3 If you wish to use Enhanced Throughput Mode turn it on and either accept the automatically calculated highest throughput protection time based on the current rise time and flattop or enter the desired setting The latter might require one or more data acquisitions When finished proceed to Step 4 4 Clear the MCB and acquire a well isolated peak 5 Mark the Resolution Enhancer checkbox to t
7. lt Home gt Jump to first channel of the full spectrum lt End gt Jump to last channel of the full spectrum lt Ctrl Fi gt Select Detector i i 1 to 12 in pick list order lt F2 gt Switch ROI bit control from OFF to SET to CLEAR lt F3 gt In MCBs that support the two spectrum ZDT mode or for spectra acquired in ZDT mode switch between the two spectra lt Shift F3 gt In Compare mode when comparing ZDT spectra hold the initial spectrum in its current ZDT view ERR or ZDT and toggle the Compare spectrum between its ZDT views lt F4 gt or lt Alt 6 gt Switch between displaying selected Detector and buffer lt F5 gt or lt gt Change vertical scale so that spectrum peaks are smaller lt F6 gt or lt 1 gt Change vertical scale so that spectrum peaks are larger lt F7 gt or lt gt Narrow the horizontal scale lt F8 gt or lt gt Widen the horizontal scale lt Alt F7 gt Sets the Expanded Spectrum View to the full spectrum Keypad lt gt Zoom out Keypad lt gt Zoom in Keypad lt 5 gt Center expanded display on cursor Keypad lt gt Switch to logarithmic vertical scale Keypad lt gt Switch to auto vertical scale Insert lt Ins gt Mark the peak region around the cursor as an ROI Delete lt Del gt Clear the ROL lt Shift 1 gt Shift the compare spectrum upwards lt Shift 1 gt Shift the compare spectrum downwards lt Alt 1 gt Start acquisition in selected Detector lt A
8. MAESTRO v7 Software User s Manual 3 sit ci Slo 44 T vs a 552 2 9 91 pre 4 d Detector List on the toolbar displaying the currently selected Detector or the buffer Clicking on this field opens a list of all Detectors currently on the PC s MAESTRO Detector pick list from which you can open Detector and or buffer windows When you select the buffer or an Detector from the list a new spectrum window opens to a limit of eight If you selected a Detector the spectrum in its memory if any is displayed Maestro 7836 File Acquire Calculate Services ROI Display Window Marking 5 Pulse Ht Analysis 32 Mcb 8 MCB 141 Start 2 02 31 PM 6 22 2012 Real 58 810 34 Live 58 768 68 Dead Preset Limits O 2 Mcb 9 7836 bolas el ro e 4 Peak at fel Library ei ORTEC 2 57 18 PM Wed 6 27 2012 ae 3 649 10 1 335 17 key 14 Cnts Mcb Model No DETG 306 y Fig 5 Main MAESTRO Screen Features Se 6 10 ROI Status Area on the right side of the menu bar indicates whether the ROI marking mode is currently Mark or UnMark This operates in conjunction with the ROI menu commands and arrow keys see Section 4 5 Spectrum Area which displays multiple spectrum windows up to eight Detector windows and eight buffer windows simultaneously When you attempt to open a ninth spectrum or buffer window MAESTRO will ask 1f you wish to close the oldest window of 3 DISP
9. for a brief description of the CHN SPC and SPE file types Note that you can select any of these file types at the time you save the file and the dialog will remember the most recent file type used PHA mode spectra cannot be saved in the LIS List Data format A List Mode Spectra By default the Save and Save As commands offer to save List Mode spectra in LIS format however you can also save this data in any of the other file formats 27 MAESTRO v7 Software User s Manual Note that the structure and contents of LIS files is instrument dependent see the associated hardware manual for more information but includes the Detector s current calibration and sample description 4 1 4 Export The Export function is used ZE Export Spectrum File E to write spectra in formats other Look in jj User eta than the usual formats or to Name s Date modified Type perform other functions such as Bo ic lc 4 MEA sp EN 3 8 2012 12 45 PM__ ORTEC Spec printing the spectrum directly The Bu 200 MAE v7 Cx v8 Co60 Cs134 Spc 6 28 2012 5 21 PM ORTEC Spec Bu 200 MAE v7 Cx v8 Co60 Cs134_2 LIST MODE 2 S 6 28 2012 4 04 PM ORTEC Spec Export tab under File Settings Mioim 200 MAE v7 Cx v8 Co60 Cs134_2 Spc 6 28 2012 11 52 AM ORTEC Spec as discussed in Section 4 1 1 2 Bu 20 MAE v7 Cx v8 Co60 Cs134_120701_1 Spc 7 1 2012 7 13 PM ORTEC Spec The program can be one of the File
10. program command is used RUN_MINIMIZED program Same as the RUN command above except that the application is run initially as an icon minimized rather than as a normal window SAVE d path file chn This command has the same function as Save As under the File menu It saves the currently active buffer to a disk file The disk filename in quotation marks can be any valid filename the drive d path path and extension CHN are optional If an extension is not supplied the default extension is automatically CHN Also the current drive and directory are used by default when the optional path specification is not supplied The loop count value can be included in the filename by typing three question marks in the text where the loop count is to be inserted The loop count replaces wherever it appears Any Ask on Save questions defined in File Settings are asked each time a SAVE command is executed This stops execution of the JOB file until the question is answered Note that if you choose Cancel for an ask on save prompt the entire save operation is canceled for that particular spectrum The real time live time start of acquisition and if available calibration data Detector description and sample description are stored with the spectrum SAVE_ROI d path file roi This command has the same function as Save File under the ROI menu It saves a table of channel num
11. If the maximum eight buffer windows are currently open MAESTRO will ask if you wish to close the oldest buffer Answering No will cancel the recall operation and the oldest buffer will remain onscreen Answering Yes will close the oldest buffer and open a new buffer containing the recalled file If the oldest buffer contains data that have not been saved a prompt will ask you to click Yes to save it or No to close without saving 26 3 MENU COMMANDS When the spectrum is successfully E Recall Spectrum File recalled MAESTRO loads its Look in ji User e En descriptors e g start time live Name n Date modified Type time real time MCB and sample e Cat 7 1 2012 1217 PM File folder ta A METE pc 5 8 2012 12 45 EM ORTEC Spec description and displays the file Bu 20 MAE v7 Cxv8 C060 Cs134 Spc 6 28 20125 21PM_ ORTEC Spec name on the Title Bar If the spec Bu 200 MAE v7 Cx v8 Co60 Cs134_2 LIST MODE 1 Sp 6 28 20123 59PM_ ORTEC Spec E Fa Bu 200 MAE v7 Cx v8 Co60 Cs134_2 LIST MODE 2 Sp 6 28 2012 4 04 PM ORTEC Spec trum file has calibration informa Bu 200 MAE v7 Cx v8 Co60 Cs134_2 Spc 6 28 2012 11 52 AM ORTEC Spec tion it is used to set the calibration ua 20 MAE v7 Cx v8 Co60 Cs134 120701 1 5pc 7 1 20127 13PM ORTEC Spec for this buffer window i m Filename 8H4275 Spc 4 1 3 Save and Save As Fies oftype Integer SPC zJ Ge Iw Show Description Real Data Format 8192 Channels These functions save
12. _ Lib0 Mdb 5 8 2012 12 45PM MDB File File name L Ge _ Files of type Access Da Database Cancel Access Database Fig 70 The Load Library File Dialog 3 MENU COMMANDS 4 4 3 Sample Description This command opens the dialog shown in Fig 71 for reading editing or entering the Sample Description of the displayed spectrum This description can be up to 128 characters in length and automatically accompanies the spectrum when it is subsequently copied or saved to a file This description also appears in the title bar at the top of the window while the spectrum is displayed For files in the CHN format only the first 63 characters are saved in the spectrum file Sample Description Buffer 4 8H4275 Chn NBS SRM 4275 24 SN 1141 MIXED CLB SOURCE NBS SRM 4275 24 5N 1141 MIXED CLB SOURCE Cancel Fig 71 Sample Description Entry 4 4 4 Lock Unlock Detector This facility enables you to protect a Detector from destructive access e g Start Stop Clear by any program on the PC or network While any program can view the data and read the contents on any Detector in the system locked or unlocked the contents of a locked Detector cannot be changed without knowing the password NOTE There is no master password If the password is lost contact the ORTEC Global Service Center for assistance in unlocking the detector e Locking Select the Lock Unlock comm
13. and why should you avoid using it This mode simultaneously collects the ZDT spectrum and the conventional uncorrected spectrum It is useful for demonstrating that the counts in the uncorrected spectrum divided by the live time is the same counting rate as the counts in the ZDT spectrum divided by the real time in the special case of constant counting rate Because the error spectrum is not collected in NORM_CORR mode the standard deviation in the ZDT counts cannot be calculated if the counting rate is varying GammaVision provides some protection for users if the ZDT LTC mode is inadver tently selected In this case GammaVision v7 ignores the ZDT spectrum and presumes you intended to use the uncorrected spectrum in a constant counting rate application To summarize e Use the ZDT Off mode when the counting rate is expected to be constant during the time taken to acquire the spectrum e Use the ZDT CORR_ERR mode when the counting rate is expected to change or might change significantly during the time required to acquire the spectrum e Avoid using the NORM_CORR mode because GammaVision v7 will default to analyzing the LTC spectrum and will ignore the ZDT spectrum More Information Visit our website or contact your ORTEC representative for more detailed information e Application note ANS6 Loss Free Counting with Uncertainty Analysis Using ORTEC s Innovative Zero Dead Time Technique http www ortec online com pdf an56 pdf
14. e General gamma spectroscopy technical papers http www ortec online com papers reprints htm General 60 3 MENU COMMANDS 4 2 8 5 InSight Mode The InSight display Fig 51 shows the actual sampled waveform in the digital processing units on a reference graticule The Properties dialog remains active and can be used to change settings while viewing the pulses As none of the traditional analog signals are available in digital MCBs this mode is the only way to display the equivalent amplifier output pulse Note that at the bottom of the window the marker channel is displayed in units of time fi Z5 InSight IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs134_120702_2 Spc Lo eeng File Acquire Calculate Services ROI Display Window IM Di Clo 2 4 Los A Alel 444 0019 10m 200 gt Mark 33 Mcb InSight 3 IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs134_120702_2 Spc o mane Trigger PKD M V Single Reset Delay 78 80 4 Baseline Restorer Auto 568 pS Fast Slow LLD 40 E Pole Zero 7 Auto 2460 Other Controls ORTEC 7 54 36 PM PP EL o Marker 500 50 00 p5 352 Cnts Mcb Model No DETM 002 Fig 51 The InSight Mode Display To exit the InSight mode and return to the PHA display press lt Esc gt or go to the Insight section on the Amplifier 2 tab and click on Stop The PHA mode is set to STOP when in the InSight mode 61 MAESTR
15. exported and imported and to set the directories SEN 8 Ort for file types used by MAESTRO 3 Import Print 4 1 1 1 General EE The entries on this tab Fig 18 control the default spectrum Compare file format and sample description to be saved with the spectrum Exit You can also activate the ask on save feature for the sample des About MAESTRO cription so it can be modified before the spectrum is saved Fig 17 File Menu When you finish setting the parameters in this dialog and click on OK these settings will be used until changed The file types are integer CHN integer SPC real floating point SPC and ASCII SPE All of these formats are described in the ORTEC Software File Structure Manual for DOS and Windows Systems P N 753800 hereinafter called the File Structure Manual available on the MAESTRO start menu The CHN file format is the format used by all versions of MAESTRO It is the simplest format and therefore the easiest to read with other programs It saves the live time real time acquisi tion start time MCB and sample descriptions and calibration if any but does not contain the 21 MAESTRO v7 Software User s Manual analysis parameter data the com Te Settings plete calibration or other data needed for nuclide analysis General Export Import Directories Save File Format Integer Chn The two SPC formats integer and Integer Spc Data floati
16. higher input count rate by reducing the pulse rise and fall time thereby trading off resolution for maximum count rate 64 Table 2 is a guide to choosing a count rate that will ensure that the most efficient operation of your digital spectrometer over the range of anticipated input count rates for your application that is at or below the throughput peak while achieving the best resolution obtainable from the detector consistent with that requirement Enter the rise time that best matches your dynamic range of count rate note that the available rise time settings will vary by instrument 3 MENU COMMANDS Table 2 Rise Time Selection Guide Input Count Rate Maximum Rise Time Dynamic Range Throughput us 0 gt 200k 70000 08 0 gt 220k 85000 06 this chart is a general guide only 0 gt 250k 100000 0 gt 300k 120000 0 gt 150000 50000 The longest rise time shown in the table is 12 us even though some digital instruments can be set for rise times as long as 23 us If throughput is not an issue because all samples are low rate increasing the rise time beyond 12 us might achieve a small improvement in resolution For planar detectors such as ORTEC s GLP Si Li IGLET and IGLET X Series operating at longer rise times frequently gives improved resolution 4 3 Calculate The Calculate menu Fig 54 provides useful analytical tools for spectrum manipulation Smooth and Strip are
17. the width of the ROI equals the width of the peak as determined by Peak Search Overlapping or close peaks might have contiguous ROIs Existing ROIs are not cleared therefore you may wish to clear them before performing this analysis This command has the same function as Peak Search in the Calculate menu The following is an example of the MARK_PEAKS command used with REPORT MARK_PEAKS REPORT TESTDAT RPT The above procedure does a peak search directed report of nuclides found as listed in the library currently in memory then writes to disk an ROI Report for the peaks found QUIT Unconditionally terminates the MAESTRO program and returns control to Windows RECALL file chn This command has the same function as Recall under the File menu It reads the specified file to a buffer The disk file must be in a file format created by the SAVE command e g SPC SPE CHN LIS the format created by SAVE Any DOS filename including the drive and subdirectory can be used The resulting memory size of the buffer is the same as the memory size of the file The file live time and real time are restored If the spectrum file has calibration information the calibration parameters are used to set the calibration for the buffer 117 MAESTROS v7 Software User s Manual The loop count value can be included in the above filename as in any text by typing three question marks in the text where the loop count is to be inse
18. 1 2 under Arguments page 23 except that here they refer to the filename selected for importation with the File Import command C Program Files x86 on 64 bit Windows computers 24 3 MENU COMMANDS G File Settings File Path Name File Base Name Short Name Short Base General Export Import Directories Import Program C Program Files x86 Maestro T ranslt Exe Browse q l as File Extension Arguments i txt ShortPath chn S hortB ase Chn Initial Directory E D Fig 23 Import Arguments Extension Txt Run Options Minimized C Maximized Normal Window Fig 22 Import Tab Initial Directory Specify the initial directory for the program to use either with File Directory directly entered character strings or by selecting from the list Program Directory of macros shown in Fig 24 The list is displayed by clicking on MAESTRO Directory the arrow button to the right of the Initial Directory field The Current Directory directories on this menu are described in Section 4 1 1 2 under Initial Directory page 24 except that the reference to file name applies to the file selected for importation with the File Import command Fig 24 Import Macros Default The default extension entered here is used as the extension for the filename in the filename entry dialog For example 1f you enter TXT the name list in the entry dialog will be TXT Ru
19. 24 volts y 24 24 30 Y This is the current value of the 12 111 97 V 24 volt supply aw mary 12 volts 26 aes This is the current value of the E High Voltage 12 volt supply 12 volts This is the current value of the Pet DOE ETSN oes 12 volt supply 24 volts This is the current value of the 24 volt supply High Voltage This is the current value of the high voltage bias supply Note that as of this release the Detector temperature and Live detector temperature monitors are listed but return only N A Presets Figure 48 shows the Presets tab MDA presets are shown on a separate tab The presets can only be set on an MCB that is not acquiring data during acquisition the preset field backgrounds are gray indicating that they are inactive You can use any or all of the presets at one time To disable a preset enter a value of zero If you disable all of the presets data acquisition will continue until manually stopped When more than one preset is enabled set to a non zero value the first condition met during the acquisition causes the MCB to stop This can be useful when you are analyzing samples of widely varying activity and do not know the general activity before counting For example the Live Time preset can be set so that sufficient counts can be obtained for proper calculation of the activity in the sample with the least activity But if the sample contains a large amount of this or another nuclide the dead
20. 89 and discussed in more detail in the remainder of the chapter The accelerators are available only in the MAESTRO window The Title Bar must be high lighted with the active title bar color as set up in Windows Control Panel In addition the active cursor or input focus must be in the spectrum window Similar to other Windows applications the input focus can be switched between MAESTRO and other applications by clicking on the Windows Taskbar pressing lt Alt Tab gt or if the inactive window is visible pointing with the mouse at some spot in the inactive window and clicking The multi key functions such as lt Alt 1 gt or lt Shift gt gt are executed by holding down the first key e g lt Alt gt lt Shift gt or lt Ctrl gt while pressing the key that follows the sign in the brackets then releasing both keys simultaneously Functions that use the keypad keys begin with the word Keypad e g Keypad lt 5 gt As usual for any Windows application the menus are accessed by clicking on them with the mouse or by using the Alt key plus the key that matches the underlined letter in the menu item name For example the multi key combination to activate the File menu is lt Alt F gt Note that the MAESTRO accelerator keys do not interfere with Windows menu operations or task switching For example when a menu is active 1 e pulled down the lt gt lt gt and lt 1 gt lt 1 gt keys revert to thei
21. ADC BEER EE E EE E 45 Amplifier gain Eiere ba aires BA See See 96 Analog to digital converter see ADC 1 Anticoincidence 4 5 occas EN asas ene 46 63 Arguments EXPO ato Piper iS 23 o GEET 24 Associated EEN 18 Auto mode in InSight mode 62 Auto cl at ROI ade 81 Baseline Restore solas rata 63 DUE sodas AS 36 88 Calculate menu iio 65 Calibration lora 66 SEH E EEE EE 14 84 Clear RT NEE 13 81 89 E EE EE 13 36 88 Coincidence Ae 45 63 Command line MAESTRO EE 141 MCB Configuration 8 TRANSIT EEN 138 WINPLODS otras eee i eae 131 Compare spectra 33 86 92 Copy to Buffer oa 88 COUNETAIES Ae ee re ek ee ewes 40 41 Dead tme lt a 50 63 RE ee 62 Detector lock unlock password 3 77 116 124 EE ais 10 14 status sidebar EE 12 Detector EE 10 Display mode points fill 85 spectrum colors vs nda 86 Eege 82 Drag and drop godine ee ee NEE 18 DSPEC 50 ADC SOUP cscs oe Sowa AE ease 45 amplifier settings 39 41 anticoincidence Ee ia 46 COINCIDENCE verd 45 Enhanced throughput mode 43 high voltage setup 47 live time preset AA 50 low frequency rejector LFR 42 lower level discriminator 46 MDA preset EE 51 noise rejection level see E 43 Nuclide Report setup tab SE DREI See E 40 real time preset ra 50 Resolution Enh
22. CHANEL I CHNNL 1 ENDREC CHANEL 8 BEGREC CHANEL 8 This is only one record in this example but could be any number of records The 2 is the offset past the header and the records start at 1 So the first data record is 2 DO 450 I BEGREC 2 ENDREC 2 C Read the 8 channels READ 1 REC I SPCIN K K 1 8 C Print the 8 channels along with the channel number of C the first channel WRITE 0 410 1 8 I 2 SPCIN K K 1 8 anA 410 FORMAT 1X 15 819 450 CONTINUE CLOSE 1 1000 STOP END B 2 1 2 ROI Files INTEGER 2 LUNROI LSTREC IBEGIN IEND C WRITE 0 100 100 FORMAT 29X ROI PRINT ROUTINE C Open the ROI file OPEN 1 FILE STATUS OLD ACCESS DIRECT RECL 2 C Read the ROIs I 0 IROI 1 C Add 2 to skip past the header 200 READ 1 REC I 2 IBEGIN C If the entry is 0 then this is the end of the list IF IBEGIN LE 0 GO TO 1000 C If the beginning is there then the end is also READ 1 REC I 3 IEND C But its one too many IEND IEND 1 C Write them all out 145 MAESTRO v7 Software User s Manual WRITE 0 220 IROI IBEGIN IEND 220 FORMAT ROI 1I3 START 16 STOP I6 C Add 2 to I to advance past the begin and end numbers I I 2 IROI IROI 1 C Keep going until we run out of numbers GO TO 200 1000 STOP END B 2 2 C Language RR RK KK KH KK KK KH KK KK KKK KKK KH KKK KKH KKK IKK KKK KKH KKK KKK KKK KKK KKK Sample program compatible with Microsoft and Borla
23. Clear Alt 3 Copy to Buffer Alt 5 List Mode Download Spectra View ZDT Corrected F3 MCB Properties Calculate page 65 Settings Calibration List Data Range Peak Search Peak Info Input Count Rate Sum Smooth Strip 19 MAESTROS v7 Software User s Manual Services page 74 JOB Control Library file gt Select Peak Select File Sample Description Lock Unlock Detector Edit Detector list ROI page 79 Off Mark UnMark Mark Peak Clear Clear All Auto Clear Save File Recall File Display Detector Detector Buffer Logarithmic Automatic Baseline Zoom Zoom In F2 or Alt O F2 or Alt M F2 or Alt U Insert Delete Ctrl lt Fn gt F4 or Alt 6 Keypad Keypad Keypad page 82 Zoom Out Keypad Center Keypad 5 Full View Isotope Markers Preferences gt Points Fill ROI Fill All Spectrum Colors Peak Info Font Color Window page 87 Cascade Tile Horizontally Tile Vertically Arrange Icons Auto Arrange Multiple Windows List of open Detector and buffer windows 20 3 MENU COMMANDS Right Mouse Button Menu page 88 Start Stop Clear Copy to Buffer Zoom In Zoom Out Undo Zoom In Mark ROI Clear ROI Peak Info Input Count Rate Sum MCB Properties 4 1 File The File menu is shown in Fig 17 Eile Settings 4 1 1 Settings Recall The File Settings dialog allows you to specify how the spectrum sm SS data are saved
24. Copy to Buffer command on the right mouse button menu 4 2 5 List Mode This toggles the current Detector s data acquisition mode between PHA mode and list mode Section 1 5 This function can also be performed with the List Mode toolbar button 4 2 6 Download Spectra This command supports standalone MCBs such as Detective family instruments trans SPEC digiDART and DART and is used to download the spectra from the Detector to the computer disk Note that the spectra are not erased from the Detector after download The downloaded files are stored in the directory and format specified in the dialog under File Settings Section 4 1 1 and are named according to this format where SSS is the sequence number as shown on the digiDART spectrum list display or the storage sequence in the DART 36 3 MENU COMMANDS II is the ID string entered on the digiDART when the spectrum was saved and shown on the digiDART spectrum list display or the text string from the barcode reader in the DART ddddddddd is the date the spectrum was collected as recorded in the Detector ttttttttt is the time the spectrum was collected as recorded in the Detector ext is the extension for the file type selected If any Ask on Save Options are set in the File Settings dialog they are asked for each spectrum individually Note that if you cancel an ask on save prompt for a particular spectrum any remaining ask on save prompts for that spectrum are n
25. Detector respec tively between the PHA and List modes the SAVE command supports the LIS file type and the SET_RANGE command retrieves a specified time slice of data from an existing LIS file Note that the SET_RANGE command has two syntaxes A time slice can be recalled either by specifying an absolute date time and the desired time slice duration or by specifying the starting real time and the desired time slice duration Note that while the List Data Range command on the Calculate menu Section 4 3 3 can only retrieve time slices to a resolution of 1 second the SET_RANGE command syntax supports fractional real time and duration The following example uses the commands discussed in the preceding sections plus the list mode commands to switch Detector 12 from the standard PHA mode to List Mode collect data and save it in LIS format as well as the three supported spectrum file formats recall the LIS file into a buffer retrieve a time slice of data from the LIS file using the two syntaxes of the SET_RANGE command save the time slices and switch the Detector back to PHA mode REM First set change the Detector to List Mode and set the preset REM CLOSEMCBS CLOSEBUFFERS SET_DETECTOR 12 SET_LIST SET_PRESET_CLEAR SET_PRESET_REAL 60 REM REM Next start a List Mode acquisition REM CLEAR START WAIT REM REM Save the spectrum in the four supported file formats REM SAVE JobTest Lis SAVE JobTest Chn SA
26. Export function 7 2 Nuclide Library Editor MAESTRO v7 uses the GammaVision Library Editor to create and edit library files which are used in the peak search and report functions for the quantitative identification of and activity calculations for spectral components according to calibrated peak energy This library editor allows you to work with both the MAESTRO GammaVision LIB format and with MDB format libraries created by ORTEC s NuclideNavigator products The old MAESTRO library format MCA is no longer supported The library files are organized by nuclide then by the nuclide s peaks Library data include the nuclide name half life and half 131 MAESTRO v7 Software User s Manual life uncertainty Nuclide names can be any combination of eight characters but must be consis tent throughout all files The library peak data include the energies and yield branching ratio or gammas disintegration for each energy The default file extension is LIB At startup MAESTRO automatically attempts to load the library last loaded Thereafter this working library can be replaced at any time with Library Select File The library stays resident in memory after it has been loaded In the analysis report the nuclides are listed in the order they are in the library The size of a working library is limited to 65 000 bytes for any combination of nuclides and peaks e g about 100 nuclides with 1900 peaks or 200 nuclides with 1600
27. Lines can also be included The grid lines are lines across the complete height of the plot at the major tic marks When Auto Scale is selected the plot vertical axis is adjusted so that the largest count in the spectrum is near the top of the plot region When Auto Scale is clicked off the Range button is enabled Clicking on Range will display the dialog shown in Fig 97 The value entered will be the value for the top of the plotted region Any counts above this value will be plotted at this value 130 7 UTILITIES 6 G Horizontal Range Options Vertical Range Options Enter the Range for the Horizontal Axis Enter the Maximum Value for the Vertical Axis Units Energy O To 512 000000 Channels a Cancel 100000 Cancel From WU Fig 97 Vertical Range Options Dialog Fig 96 Horizontal Range Options Dialog 7 1 3 Command Line Interface The WINPLOTS Command Line Interface will support options available in the interactive mode as shown below WINPLT32 lt spectrum gt R lt roi_file gt S lt set_file gt P here R DATA Specifies the spectral data file SPC An1 or CHN The extension must be included R lt roi_file gt Specifies the ROI file The extension must be included S lt set_file gt Specifies the settings file The extension must be included P Causes the program to print the plot and exit automatically Used mainly in JOB files or the
28. Microsoft XPS Document Writer y Properties and sends the complete report to the EE default printer and or to a disk file Type Microsoft XPS Document Writer Print to file In addition you eier SE d Comment Print to file can select Print to display to show Gre T Print to display on screen a similar report only for a orma the ROIs currently displayed in the Paragraph C Column ee Expanded Spectrum View Fig 30 ROI Report Dialog The ROI Report dialog shown in Fig 30 opens first It allows you to select a file preview it on screen or send the report to the printer via Windows and select one of two out put formats Paragraph or Column Both report formats supply the same information If the spectrum is not calibrated the following are reported for each ROI 29 MAESTRO v7 Software User s Manual ROI number and Detector number Start channel of the ROI Stop channel of the ROI Gross area of the peak Net area of the peak as calculated in Calculate Peak Info Error in net area as calculated in Calculate Peak Info Centroid channel of peak as calculated in Calculate Peak Info Full width at half maximum FWHM Full width at one tenth maximum FW 1 10 M If the spectrum is calibrated both calibrated and channel values are given for items 1 9 above and in addition the following is included e The best match from the library If a match is found in the library the following addit
29. New Multiple Detector Interface 102 MAESTRO v7 Software User s Manual 6 2 Summary JOB Commands iS A A 103 6 33 JOB Pile Variables 101 A eege de A d 107 6 4 JOB Programming Example sigs siege AAA AS AAA 108 6 4 1 Improving the ng Ar geed ne av eh Sate ale gd ace lu 110 6 4 2 JOB Commands for List Mode 0 ENEE SINNER ds 112 6 3 JOB Command Details deeg cies keene EAN 113 Ts ELIE iS BY a ed Os 127 Pls WINFLOUS 2 weed were siii a woe ie hea Oe E ibra 127 Tall EE 128 TAL OPUS NEE oi Bee SS A A 129 le PIQUE he Sine e KE a de peas 129 ROD a ar 129 A ee et A O ee 130 Horizontal ti a eege 130 Venice idad 130 7 1 3 Command Line erat SEAS cee 131 72 Nuetide Library EE La e 131 7 2 1 Copying Nuclides From Library to Library o oooocoocoooonooo 133 7 2 2 Creating a New Library Manually 134 7 2 3 Editing Library ee 135 7 2 3 1 Manually Adding Nuelides cuenco rei pee ata 135 7 2 3 2 Deleting Nuclides from the Libar 136 7 2 3 3 Rearrangme the Library List er eto we wee ens 136 7 2 3 4 Editing Nuchde Peaks 2 Sil poke leah SE o4 136 12 35 Addine Nuclide Peaks vuoi diritto 137 7 2 3 6 Rearranging the Peak List and tt eee laid 137 7 2 3 7 Saving or Canceling Changes and Closing 137 T24 Print A EE 138 SE ENEE EE 138 12 05 DOU Ue tere RAR e Sneek 138 d E EE 138 APPENDIX A STARTUP ato daa 141 ALL Command Lane A EE lee ted oa oe RSI ee eee 141 APPENDI
30. ORTEC MCBs L Configure only local instruments Oe no discovery of ORTEC instruments across a network except attached digiBASE E units This can significantly reduce the time it takes to run MCB Configuration if you have only local MCBs P Append all newly discovered instruments to the existing list 1 e don t clear the existing list before starting discovery Useful when you don t have all your instruments connected or powered on at the same time but wish to configure new detectors There are two ways to modify the MCB Configuration command line e To retain the flags from use to use right click on MCB Configuration in the Start menu select Properties then in the Target field add the flags outside the right hand quotation mark and click on OK For instance C Program Files Common Files ORTEC Shared UMCBI mcbcon32 exe I L e To temporarily change the command line open the Windows Start menu s Run dialog browse to locate the MCB Configuration file mcbcon32 exe add the flags outside the right hand quotation mark and click on OK As noted earlier 32 bit Windows uses the Program Files folder and 64 bit Windows uses Program Files x86 8 3 DISPLAY FEATURES This chapter tells how to start MAESTRO explains its display features discusses the role of the mouse and keyboard covers the use of the toolbar and sidebars discusses how to change to different disk drives and folders and shows how to u
31. Start command on the right mouse button menu and Acquire Start 5 3 2 Stop lt Alt 2 gt lt Alt 2 gt stops acquisition in the selected Detector This duplicates the Stop toolbar button the Stop command on the right mouse button menu and Acquire Stop 5 3 3 Clear lt Alt 3 gt lt Alt 3 gt clears the displayed Detector s histogram data and its descriptors e g real time live time This accelerator duplicates the Clear Spectrum toolbar button the Clear command on the right mouse button menu and Acquire Clear 5 3 4 Copy to Buffer lt Alt 5 gt lt Alt 5 gt copies the histogram data from the selected Detector to the buffer along with its descriptors e g live time real time and displays the spectrum in a new window This duplicates the Copy to Buffer toolbar button the Copy to Buffer command on the right mouse button menu and Acquire Copy to Buffer 97 MAESTROS v7 Software User s Manual 5 3 5 Detector Buffer lt Alt 6 gt lt Alt 6 gt switches the display between the histogram of the spectrum in the selected Detector and the spectrum in the buffer The buffer will have the memory size of the spectrum that was last transferred from Detector or disk file The Detector list on the right side of the toolbar indicates whether the buffer or a particular Detector is currently displayed and the Status Sidebar shows the presets for the displayed data This duplicates lt F4 gt and Display Detector B
32. The List Data Range command on the toolbar and the Calculate menu Section 4 3 3 allows you to view a specific time slice of the list mode data It is active only in a buffer window in which a LIS file has been retrieved You can optionally save list mode time slices in any supported file format The specific List Mode implementation and data structure for supported ORTEC MCBs differs from model to model see your instrument s hardware manual 2 INSTALLING MAESTRO You must have Administrator access in Windows to install MAESTRO 2 1 Step 1 Installing CONNECTIONS The first step 1s to install the CONNECTIONS Driver Update Kit p n 797230 according to its instruction sheet p n 932721 The update kit s instructions tell how to install CONNECTIONS and enable disable the drivers for your ORTEC MCB s and share ORTEC instruments across a network It also points you to information on selecting the proper network protocol for older direct to Ethernet units At the end of installation you will be directed to restart the PC 2 2 Step 2 Installing MAESTRO Insert the MAESTRO CD Select My Computer and the CD drive then run Disk 1 Setup exe In Windows 7 an explorer window may open displaying the CD contents Choose to install Disk 1 Setup exe If a security dialog asks if the program should be installed answer yes to start the MAESTRO installation wizard Click on Next and follow the wizard prompts to completion No restart is r
33. View is raised above the baseline to show the offset This is duplicated on the toolbar 4 6 6 Zoom In Zoom In adjusts the horizontal and vertical scales in the tof A E El Expanded Spectrum View to view a smaller portion of the spectrum The vertical scale is divided by two and Se So verac e e ai the horizontal scale is reduced by about 6 of the full EE horizontal scale The current horizontal and vertical full scale values are shown on the toolbar see Fig 80 This command is duplicated by Keypad lt gt the toolbar s Zoom In button and Zoom In on the right mouse button menu 4 6 7 Zoom Out Zoom Out adjusts the horizontal and vertical scales in the Expanded Spectrum View to view a larger portion of the spectrum The vertical scale is doubled and the horizontal scale is increased by about 6 of the full horizontal scale This command is duplicated by Keypad lt gt the toolbar s Zoom Out button and Zoom Out on the right mouse button menu 83 MAESTRO v7 Software User s Manual 4 6 8 Center This function forces the marker to the center of the screen by shifting the spectrum without moving the marker from its current channel This function is only required when moving the marker with the mouse the keyboard functions for moving the marker automatically shift the spectrum to center the marker when the marker travels past the end of the current expanded display Center is duplicated by Keypad lt 3 gt and the Cent
34. as points or pixels on the screen in the colors chosen for Foreground and ROI under Display Preferences Spectrum Colors see Section 4 6 11 2 85 MAESTRO v7 Software User s Manual In Fill ROI mode the unmarked regions of the spectrum are displayed as points while the ROIs are filled from the baseline to the data point with the ROI spectrum color In Fill All mode all the data points are filled from the baseline to the data point with the Foreground and ROI spectrum colors Figure 84 shows a comparison of the three display modes Note that the point pixel size in the Point and Fill ROI mode illustrations has been exaggerated to make them easier to see 4 6 11 2 Spectrum Colors Use this dialog see Fig 85 to select colors for various features in the two spectrum windows Each scroll bar controls the color of a different feature The vertical colored stripes behind the scroll bars show the available colors The Background scroll bar controls the background color of the spectrum window Foreground determines the color of the spectrum points or fill ROI governs the era E ui K A saio d E D Ki n a ante T n a Fig 84 Comparison of the Points Fill ROI and Fill All Display Modes color of the ROI points or fill The points fill of a compared spectrum File Compare use the Compare color unless they over lap with the original spectrum in which case the Composite color is used
35. be available for use in the JOB The OWNER variable is only used when locking detectors Following is an example 113 MAESTROS v7 Software User s Manual ASK_PASSWORD LOCK password owner Name BEEP lt freq gt lt duration gt Functions only if no sound card is installed and functioning Produces an audible tone at a pitch of lt freq gt Hertz lasting for lt duration gt milliseconds For example BEEP 1000 1000 is a nicely annoying alarm while BEEP 50 50 is a short burp BEEP ID A numerical ID is given based on a desired system event For example BEEP 7 will exit Windows ID Event Beep Speaker Default Beep Start Windows Asterisk Exclamation Critical Stop Question Exit Windows AYADNDNFWNr CH BEEP String String can be a WAV file or any event defined in the Registry CHANGE_SAMPLE Controls the CHANGE SAMPLE output and SAMPLE READY input BNC signals on the rear panel of MCBs with sample changer control e g DSPEC 919E and is intended to initiate a hardware handshake sequence for advancing a sample changer The SET_OUTPUT_HIGH command is sent to the currently selected Detector then the sample ready status is monitored for at least 120 seconds until the input is low and finally the SET_OUTPUT_LOW command is sent and input is monitored until it returns to the high level again before proceeding Note that if the sample changer controls are not able to make the SAMPLE READY input go hi
36. belong to other users as this could affect the interaction between their Detectors and their ORTEC software for instance if they control their Detectors with JOB files e g the JOB file command SET_DETECTOR 5 or use the GammaVision or ISOTOPIC spectroscopy applications See also the NOTE FOR MULTIPLE USERS ON A NETWORK in the next section If this is a first time installation of ORTEC products all your instruments will be new 6 2 INSTALLING MAESTRO 2 3 2 Customizing ID Numbers and Descriptions If you wish you can change the instrument ID Numbers and Descriptions by double clicking on an instrument entry in the Configure Instruments dialog This will open the Change Description or ID dialog Fig 3 It shows the physical Detector location read only and allows you to change the ID Number and Description P Change Description or ID Instrument Input System ID 132 1 USER PC be Description Cancel Fig 3 Change Detector Number or Description Make the desired changes and click on Close Any changes you have made to an ID number or description will then be written back to the corresponding Detector NOTE FOR MULTIPLE USERS ON A NETWORK There are two ways to reduce the chance that other users will renumber your Detectors e Add the I flag to their MCB Configuration command line as described in Section 2 3 3 This will allow you to assign whatever ID Numbers you wish regardless
37. button menu 4 3 7 Sum The Sum function performs its calculation as follows and displays the sum on the Marker Information Line 1 If the marker is not in an ROI the counts in all data channels in the buffer e g channel 1 to the maximum channel currently selected are summed 2 Ifthe marker is in an ROI the sum of the data channels in the ROI is shown on the display This is the same as the gross counts in the Peak Info display but can be used on wider ROIs Marker 2 827 1 054 26 keV 79 Cnts Sum of Counts from Channel 1425 to 4218 is 190962 3 You can also sum a region by marking it with a rubber rectangle then selecting bn f i Sum This is illustrated in Fig 63 Fig 63 Summing the Channels Within a Rubber Rectangle 72 3 MENU COMMANDS 4 3 8 Smooth The Smooth command is available in buffer windows only It transforms the data in the buffer according to a five point area preserving binomial smoothing algorithm that is the existing data is replaced channel by channel with the averaged or smoothed data as follows 5 Oj 40 1 60 40 0 2 23 i 16 23 where S the smoothed data in channel i O the original data in channel i 4 3 9 Strip This command Fig 64 strips the specified disk spectrum from the spectrum in the buffer and stores the result in the buffer Select a File name and Stripping Factor and click on OK NOTE Any valid spectral data f
38. c ge ge Gross Area 8234313 Net Area 7589080 3585 in channels and calibration units e g g Above Peak and activity gross area net area and net area uncertainty are displayed for the ROL NOTE Ifthe marker is in an ROI peak information is displayed whether or not the area is a detectable peak If no ROI is marked MAESTRO performs a peak fit using the current Peak Search settings Section 4 3 4 with the marker position as the centroid If a peak is detected its information is displayed otherwise a could not fit peak properly message is displayed If the Detector is acquiring data the values displayed are continuously updated To close the pop up box click it or press lt Esc gt This command is duplicated by double clicking the mouse in the ROI or with the Peak Info command on the right mouse button menu 69 MAESTRO v7 Software User s Manual 4 3 5 1 Calculation The program subtracts the calculated background channel by channel and attempts a least squares fit of a Gaussian function to the remaining data If unsuccessful it displays Could Not Properly Fit Peak If successful the centroid is based on the fitted function The reported widths are linearly interpolated between the background subtracted channels The spectrum components used in the background calculation are illustrated in see Fig 61 The background on the low channel side of the peak is the average of the first n channels of
39. click to display a checkmark beside it and you perform a peak search see Section 4 3 4 all existing ROIs are cleared from the spectrum before the search is performed 4 5 8 Save File This allows you to save to disk a table of the channel numbers for the current spectrum that have the ROI set The contents of the spectrum are not changed Selecting Save File opens a standard file open dialog Enter the File name The default file extension is ROI If the file already exists the system ask if you want to overwrite the data in the existing file or cancel the save Click on OK to overwrite the file 4 5 9 Recall File Recall File sets the ROIs in the buffer or active Detector to the table in the disk file created by ROT Save File Section 4 5 8 or from the table stored in an SPC file This command opens a standard file open dialog Enter the File name The ROIs in the buffer or active Detector will be set according to the table of values in the file The previous ROIs will be cleared The data contents of the buffer or Detector are not altered by this operation only the ROI bits in the buffer or Detector are set 81 MAESTRO v7 Software User s Manual Note that in ROI and spectrum files the ROIs are saved by channel number Therefore if the spectrum peaks have shifted in position the ROIs in the file will not correspond exactly to the spectrum data 4 6 Display Two of the most important functions of MAESTR
40. counts in an ROI that is 2 5xFWHM around the target peak energy Live time is evaluated in 40 second intervals for the MDA presets CorrectionFactor is the product of the calibration efficiency at the specified peak energy and the peak s branching ratio yield as listed in the working active library 51 MAESTRO v7 Software User s Manual NOTE MAESTRO does not support efficiency calibration The efficiency component in the CorrectionFactor is set to 1 0 the preset field is labeled Correction instead of MDA and the preset is based on counting activity cA instead of becquerels You can enter the MDA preset either in counts or corrected for factors such as sample volume attenuation or calculated efficiency For example if you manually calculate the efficiency for a peak you can enter a corrected MDA target value by multiplying the desired MDA value times the calculated efficiency and entering the product as the Correction To add an MDA preset enter the MS for DSPEC 50 preset value in the MDA or Corre ction field select the Nuclide and Energy enter the desired values for coefficients a b and c then pts ng ar e te click Add New SCHEER _Update_ Delete Amplifier Ampifier2 AmplifierPRO ADC Stabilizer High Voltage About Status Presets MDA Preset Nuciide Report To edit an existing preset click to MDA Preset Coefficients highlight it in the table This will Correction 150 0
41. default default extension is SPC If the input file is a TXT file it must contain the live and real time in the following format Real Time 240 Live Time 120 Both values are in seconds The header information in the TXT file will be converted and stored in the SPC file if it is in the correct format The correct format for the TXT input file is the same as the TXT format created as the output file chn The outname file is in CHN format spc The outname file is in SPC format txt The outname file is in ASCU text format The output spectrum file The default is the inname with the extension changed If the outname is not given the spectrum file will not be overwritten by the default name The length of the spectrum file converted from text will be the next higher power of two with the surplus channels set to 0 Set the format output to 128 characters per line default is 70 characters per line Do not print channel as first number in line default is to print the channel number The channel number is followed by a colon to separate it from the data Number of data columns is n default is 5 Error returned if line width will exceed available space Do not write acquisition or analysis information in output file default is to write this information 139 MAESTRO v7 Software User s Manual nh Do not write header information in output file default is to write this information i Import a text file and save as S
42. erigen 74 A EE 74 example das 108 Me ata yd 101 file variables eds 107 1OOP COMME 77 ad 110 psc AAA 108 UN td Eege ee bak ae lal 74 Keyboard COMIMANAS EE 91 Ms gel 93 quick references e da 92 Library e ito cuba aia ed se 136 Ree EE He Master a ea o EE 133 MENU asse io Latera 131 ucide Mass agua tira Ire 135 ONG See ih di nds 132 photon MAGS cr ser 136 Pee ed 138 SHOW peak ou lirico ii 76 Ke tt EE 133 incar scale barat Sete ede tu hh dee ah eet Ene 14 list Data R n equis ens 68 List Cie ER 3 add data Incrementa dr ns 68 JOB commands 2 344 346043354 es tad s 112 ist Data Rante ario talia EE 68 set data range retrieve time slice 68 106 123 toggle between PHA and List mode 36 105 121 LN de rara 50 Lopimode sicario aa 62 Logarithmic scale add eds 14 Lower level discriminator LLD 46 Mark InSight mode 40 62 63 M rk TEE 13 80 89 Marker moving with the mouse 15 Marker Information Line 12 MCB Configuration program 5 MDA DIESEL eis staan dat oy pede cala 51 AE EE 9 e LEE 35 Calc late us as e lacy bas 65 RE 82 ele Bett en te ei ala 21 AA eege ele 131 right mouse button 15 88 ROD area nelle titani 79 o E eege ele br 74 Window EEN 87 A siae lea 15 moving the Makers cabs a 15 Right mouse button menu 15 rubber rectangle der cd ue aa oe alae es 16 TEEN 39 Nuclide Report e Te EE ENEE
43. from disk can be moved below the first spectrum 1f 1t has fewer counts 5 2 11 Zoom In Zoom Out Keypad lt gt lt gt Keypad lt gt increases the scale of both axes in the Expanded Spectrum View so the peaks appear larger while Keypad lt gt does the opposite making the peaks look smaller The scale value for both axes is always shown on the toolbar These functions are duplicated by the Zoom In Zoom Out buttons on the toolbar and Zoom In and Zoom Out under the Display menu See Section 3 3 for a more detailed discussion 5 2 12 Fine Gain lt Alt gt lt Alt gt These accelerators step the internal amplifier up or down by one increment of fine gain on the selected Detector if it has a software controlled amplifier The new fine gain setting is shown on the Supplemental Information Line at the bottom of the screen If the gain stabilizer is active the display of the histogram data might not change The fine gain can also be set with Acquire A djust Controls Section 3 2 3 lt Shift Alt gt lt Shift Alt gt on the keyboard and Keypad lt Alt gt lt Alt gt 5 2 13 Fine Gain Large Move lt Shift Alt gt lt Shift Alt gt lt Shift Alt gt and lt Shift Alt gt step the internal amplifier of the selected Detector if it has a software controlled amplifier up or down by a large increment of fine gain If the gain stabilizer is active the display of the histogram data might n
44. from problems detected at the hardware level will appear in a message box or on the Supplemental Information Line at the bottom of the display The Detector can also be started with the lt Alt 1 gt acceler ator the Start Acquisition button on the toolbar or the Start command on the right mouse button menu If the Detector is already started or if a buffer is the active window this entry is disabled 35 MAESTRO v7 Software User s Manual 4 2 2 Stop Stop terminates data collection in the selected Detector The display must be in Detector mode If the Detector is not active the entry is grayed The Detector can also be stopped with the accelerator lt Alt 2 gt the Stop Acquisition button on the toolbar and the Stop command on the right mouse button menu 4 2 3 Clear Clear erases the spectral data and the descriptors e g real time live time start time for the currently active Detector or buffer window The presets are not altered This function might not operate on some types of Detectors when they are collecting data The data can also be cleared with lt Alt 3 gt the Clear Spectrum button on the toolbar or the Clear command on the right mouse button menu 4 2 4 Copy to Buffer This command transfers the data and descriptors e g live time real time from the selected Detector to a new buffer window This function can also be performed with lt Alt 5 gt the Copy Spectrum to Buffer toolbar button or the
45. gt the Copy Spectrum to Buffer toolbar button or the Copy to Buffer command on the right mouse button menu 88 3 MENU COMMANDS 4 8 5 Zoom In Zoom In adjusts the horizontal and vertical scales in the Expanded Spectrum View to view a smaller portion of the spectrum If the rubber rectangle is not being used the vertical scale is divided by two and the horizontal scale is reduced by about 6 of the full horizontal scale If the rubber rectangle is being used the display shows only the contents of the rectangle The current horizontal and vertical full scale values are shown on the toolbar This command not using the rubber rectangle is duplicated by Keypad lt gt the toolbar s Zoom In button and Zoom In on the Display menu 4 8 6 Zoom Out Zoom Out adjusts the horizontal and vertical scales in the Expanded Spectrum View to view a larger portion of the spectrum The vertical scale is doubled and the horizontal scale is increased by about 6 of the full horizontal scale This command is duplicated by Keypad lt gt the toolbar s Zoom Out button and Zoom Out on the Display menu 4 8 7 Undo Zoom In This will undo or reverse the last Zoom In operation done with the rubber rectangle It restores the display to the horizontal and vertical expansion before the Zoom In It is not the same as Zoom Out 4 8 8 Mark ROI This function marks an ROI in the spectrum for the total width of the rubber rectangle All channels ar
46. hee meV neat eee nea tome d 96 52A Ls ZOOM IY ZOOM OU E NS SS A io 96 Sel 2 Fine Gail Fn A be oe Re eRe ee eee EE 96 32 19 Eme Gam Laree Move tee A A eae ewes 96 5 2 AS CEE APIS ai seed E ond fe Rent eee hea os heed eee ok 97 5 3 Keyboard Number Combinations ia eno 97 SERI D EE 97 EE e aa neh ae heen teen Seg ee SE eee Bee 97 O ot ae ts oe ee de de Ur Rae veneer ee os 97 Di Copy to Buffers nikal we eit eye hk eee eee UE oye Oe eRe e ates ety 97 IS Detector DUI EE 98 5 3 6 NAO Wen Wider na eee ued ea Pm Ee 98 TA PUNCHOM KEYS ies e dk be e RE MMe Sak di 98 et e ROE ele a dree eR er eae er eee iero 98 SAD ZDU NORMA AAA Stee ee Sh tg eed tran ala 98 5343s ZDT Comparare e ee Hee E race H 98 5 4 4 Detector Dutert ou ha kee kh oa AA 99 Sos Taller SOREL Sonu bac theo haga a ha NS Da Gene pe ea ees 99 5 4 6 Narrower Wider er faye eee enh da dba 99 SAT Full Mew ease seo ed ccm AI E Ree A RR die RE ees 99 5 4 8 Select Detector EE 99 NI E DA ES EE 99 SES PR A A A ETA 99 5 5 2 Auto Man al IMA A 100 SE E SEH 100 5 5 4 Zoom In Zoom Out sss ALLIES LIA RL lai 100 IS GU ee A Suvi hia Bea etek Vow OO e 100 D JOB PITES 0d ST Seid Metis Ms AS RES e SEES 101 6 1 Job Command Functionality 2s s4 sacc4 Sr a laren Rie tees ti 101 820 DR WE Ee TEE 101 Gols PHOS US ede Per edt Ol ade dee ME Ree Rated eae RR 101 Go ASKON SAVE lc nae e dE ENE as erg bike ee ee 101 6 1 4 Password Lock d Detector a RR ES 102 6 1 5 JOB Files and the
47. loaded as the working library and the ROIs saved in an ROI file are set in the currently active spectrum window 3 8 Associated Files When MAESTRO is installed it registers the spectrum files in Windows so they can be opened from Windows Explorer by double clicking on the filename The spectrum files are displayed in WINPLOTS These files are marked with a spectrum icon Ch in the Explorer display The JOB files 2 are also registered and open in Windows Notepad 18 4 MENU COMMANDS This chapter describes the MAESTRO menu commands and their associated dialogs As is customary for Windows menus the accelerator s if any are shown to the right of the menu function they duplicate Also the underlined letter in the menu item indicates a key that can be used together with the lt Alt gt key for quick access in the menu So for example the Compare dialog under File can be reached with the key sequence lt Alt F gt lt Alt C gt The ellipsis following a menu selection indicates that a dialog is displayed to complete the function Finally a small arrow following a menu selection means a submenu with more selections will be shown The menus and commands covered in this chapter in the order they appear on the menu bar are File page 21 Settings Recall Save Save As Export Import Print ROI Report Compare Exit About MAESTRO Acquire page 35 Start Alt 1 Stop Alt 2
48. memory for the second spectrum OK to overwrite A file output function discovered that the specified filename already exists and will only overwrite the file after you confirm your intentions See also File already exists Out of memory There is not enough memory in the PC to perform this function This is Windows Error 0 Path not found The specified path for the file was not found This is Windows Error 3 Peak rejected for asymmetry Peak statistics could not be obtained for the function due the calculated non Gaussian asymmetry of the obtained peak Pick list is outdated The Master Detector List has been changed by someone on the network since the last time the Detector pick list on this copy of MAESTRO was edited Preset already reached Acquisition START was attempted on a Detector or Segment that had already satisfied the preset condition s in some way Presets not programmed to Detector correctly The program attempted to change the presets in the Detector but was unable to verify the changes Presets can t be changed during acquisition Changes in the preset condition s are not allowed while the Detector is actively acquiring Problem with Buffer A JOB error resulting from some problem with the buffer usually indicating insufficient memory to create or enlarge the buffer as needed 156 APPENDIX C ERROR MESSAGES Problem with Calculation A JOB error resulting from a problem with a calcul
49. particular position in the spectrum Information about that position is displayed on the Marker Information Line see item 10 below The Full Spectrum View shows the full histogram from the file or the Detector memory Note the indicator in the upper right corner which indicates the unit s current data collection mode e g pulse height analysis mode PHA list Fig 6 Full Spectrum View with Expanded Spectrum mode LIST or one of the three View Area Highlighted zero dead time modes ZDT LTC or ERR see Fig 39 page 38 The vertical scale is always logarithmic and the window can be moved and resized see Section 3 5 4 The Full Spectrum View contains a rectangular window that highlights the portion of spectrum now displayed in the Expanded Spectrum View see Fig 6 To quickly move to a different part of the spectrum just click on that area in the Full Spectrum View and the expanded display updates immediately at the new position 11 MAESTROS v7 Software User s Manual 9 Status Sidebar on the right side of the screen provides information on the current Detector presets and counting times the time and date and a set of buttons for moving easily between peaks ROIs and library entries see Section 3 6 10 Marker Information Line beneath the spectrum showing the marker channel marker energy and channel contents 11 Supplementary Information Line below the Marker Information Line used to show library co
50. repeat itself for a series of samples The first and hardest is to write one set of the above instructions for every sample in the series A much more efficient way is to use the LOOP command To use this put LOOP before CLEAR and END_LOOP after REPORT The whole JOB file now looks like this SET_DETECTOR 1 SET_PRESET_CLEAR SET_PRESET_LIVE 1000 LOOP 10 CLEAR START WAIT FILL_BUFFER SET_DETECTOR O RECALL_ROI DECAYPK ROI REPORT PRN SET_DETECTOR 1 END_LOOP Note that an additional SET_DETECTOR 1 has been inserted after REPORT so the loop will operate on the desired Detector Now select Services Job Control Click once on an existing JOB filename then click the Edit File button This will display the contents of that file in Windows Notepad You can then overwrite the existing instructions with the above set of commands However save the new instructions to a new file named SAMPDATA JOB using the File Save As function do not use Save or the original file will be lost This new JOB file can then be executed in MAESTRO from the Services menu by selecting Job Control to display the Run JOB File dialog Select SAMPDATA JOB from the list of files and click on Open 6 4 1 Improving the JOB This JOB file can be improved by adding a save step for each spectrum collected This is done by inserting the SAVE command in the JOB file The spectrum sample description is also entered here This sample description is saved wi
51. started The Title is printed at the top of every printout just above the sample description If no title is specified a default title composed of the spectrum and ROI file names is generated The Printer is selected from the list of available printers If the printer supports color printing the Colors button will be enabled Clicking on it will display the Color Options dialog Fig 95 If you want monochrome prints from a color printer mark the Monochrome box The five different plot areas can have different colors Select the desired color from the droplist for each feature 6 e Plot Options Color Options Title DSPE C 50 w Co 60 Source on Endcap Printer Microsoft XPS Document Writer e Colors ROI Text i Filled Axis Labels V Y Description Monochrome D Grid and Tics mm Brack y Spectrum Data Mined y Roi Box or Fill Rn y Axis Labels mm Black y Other Text E Green gt Cancel Horizontal Vertical Energy e Channels Log C Linear Tic Marks M GridLines Tic Marks jw GridLines Full Scale jw Auto Scale V Fig 95 The Color Options Dialog Fig 94 The Plot Options Dialog ROI The ROIs can be Boxed that is represented as boxes drawn from the start to the stop channel or energy and from the base line to above the spectrum The Filled selection will fill the region under the spectrum data with a cross hatch
52. that are accepted That is the rejected peaks will not be marked Simply put in all modes the accepted peaks are marked This is the peak detect pulse It indicates when the peak detect circuit has detected a valid pulse The Mark occurs about 1 5 us after the pulse maximum on the display On the lower right of the InSight display are the shaping parameter controls The controls are split into two groups and the other controls button switches between them Not all DSP MCBs support all of the controls 63 MAESTROS v7 Software User s Manual One group includes Rise Time Flattop Tilt and the Optimize button The Rise Time value is for both the rise and fall times thus changing the rise time has the effect of spreading or narrowing the quasi trapezoid symmetrically The Flattop controls adjust the top of the quasi trapezoid The Width adjusts the extent of the flattop from 0 3 to 2 4 us The Tilt adjustment varies the flatness of this section slightly The Tilt can be positive or negative Choosing a positive value results in a flattop that slopes down ward choosing a negative value gives an upward slope Alternatively Optimize can set the tilt value automatically This value is normally the best for resolution but it can be changed on this dialog and in the InSight mode to accommodate particular throughput resolution tradeoffs The Optimize button also automatically adjusts the pole zero setting 4 2 8 6 Setting the Ri
53. that the Detector is unlocked Read r Properties for DSPEC 50 DSPEC 502 Sample GammaYision_DSPEC 502 64 bit Acquisition Start Time Firmware Revision DS50 006 Access 09 19 20 Wednesday June 20 2012 Read Write Serial Number Acquisition Mode DOP2U5 1 PHA Only means it is locked Status Fig 46 DSPEC 50 About Tab Figure 47 shows the Status tab You can select any six of these to be displayed simultaneously on the Status tab The parameters you choose can be changed at any time so you can view them as needed Two types of values are presented OK or ERR and numeric value The SOH para meters return either OK or ERR If the state is OK the parameter stayed within the set limits during the spectrum acquisition If the parameter varied from the nominal value by more than the allowed limit the ERR is set until cleared by the program The numeric values are displayed in the units reported by the DSPEC 50 Security Detector temperature and Live detector temperature are available only for SMART 1 detectors For non SMART 1 detectors they display N A 48 3 MENU COMMANDS Detector State of Health foce for DSPEC 50 Returns OK or an error message casi ss eg 5 Amplifier Ampl Amplifier ADC izer describing a problem with High Voltage About Status Presets MDA Preset Nuciide Report detector power or bias EN Detector State Of Health OK
54. the current NBS SRM 4275 24 SN 1141 01 MAY 81 12 00EST 6CM FROM ENDCAP EU 154 57184 6 BOS EU 155 25781 6 BOS 5B 125 41588 0 BOS spectrum to disk The Save Spec trum File dialog Fig 27 opens when Save As is selected when Save is selected for a spectrum that has no previous filename associated with it or after any operation is performed that can alter the spectrum or its associated information Fig 26 Recall Spectrum Dialog Select the desired path enter any TS Save Spectrum File valid filename in the File name Save in 1 User eh En field and click on Save If the N a Date modified H filename already exists you will Baus ze 5 8 201212 45PM ORTEC Spectrum 34 KB be prompted to overwrite the file Bu 220 MAE v7 Co60 Cs134 Spc 6 28 20125 21PM_ ORTEC Spectrum 68 KB or cancel the save operation J DmM 200 MAE v7 Co60 Cs134 2 6 28 20123 59PM_ ORTEC Spectrum 68 KB Bu 2 MAE v7 Co60 Cs134 2 6 28 2012 4 04 PM_ ORTEC Spectrum 68 KB Bu 2 MAE v7 Co60 Cs134 2 6 28 2012 11 52 AM ORTEC Spectrum 68 KB After the disk file is written its Bu 2 MAE v7 Co60 Cs134 12 7 1 2012 7 13 PM ORTEC Spectrum 68 KB 2 filename is displayed on the Title Fee ave as e Integer SE sl PHA Mode Spectra The sew mbes rear Sc BEE default format is specified on the Fig 27 Save Spectrum File Dialog General tab under File Settings Section 4 1 1 1 see that section
55. the marker and display those limits in the Start Chan and Width fields The ROI can be cleared after the preset is entered without affecting the uncertainty calculation If the marker is not in positioned in an ROI for calibrated spectra the start channel is 1 5 times the FWHM below the marker channel and the width is 3 times the FWHM for uncalibrated spectra the region is centered on the peak located within two channels of the marker and as wide as the peak The net peak area and statistical uncertainty are calculated in the same manner as for the MAESTRO Peak Info command MDA Preset The MDA preset Fig 49 can monitor up to 20 nuclides at one time and stops data collection when the values of the minimum detectable activity MDA for all of the user specified MDA nuclides reach the needed value Presets are expressed in Bq and are evaluated every 40 seconds The detector must be calibrated for energy in all spectroscopy applications and for efficiency in all applications but MAESTRO The MDA presets are implemented in the MCB i e the entries you make on this screen are saved in the MCB memory and have no direct link to MDA methods selected in the analysis options for applications such as GammaVision ScintiVision ISOTOPIC etc The MDA preset calculation uses the following formula MDA a b c Counts Live time CorrectionFactor where a b and c are determined by the MDA criteria you choose Counts is the gross
56. 0 is equipped with both automatic pole zero logic and automatic flattop logic The Start Auto optimize button uses these features to automatically choose the best pole zero and flattop tilt settings Note that if you selected Transistor Reset as the Preamplifier Type for this DSPEC 50 optimization does not perform the pole zero NOTE You cannot optimize with LFR mode enabled see Section 4 2 8 1 As with any system the DSPEC 50 should be optimized any time the detector is replaced or if the flattop width is changed For optimization to take place the DSPEC 50 must be processing pulses The detector should be connected in its final configuration before optimizing A count rate guidance message on the lower left of the Amplifier page will help you position a radio active source to deliver the correct count rate for optimization The Start Auto optimization button will be disabled gray until the count rate is suitable Select either the Resistive Feedback or Transistor Reset option and click on Start Auto The optimize command is sent to the DSPEC 50 at this time and if the DSPEC 50 is able to start the operation a series of short beeps sounds to indicate that optimization is in progress When optimizing is complete the beeping stops During optimization pole zeroes are performed for several rise time values and the DSPEC 50 is cycled through all the rise time values for the determination of the optimum tilt values All values for all the
57. 000 cA 0 000000 load its Nuclide Energy and coef Nuclide Co60 x bom Suoses ficients in the lower sections of the Energy 1332 50 _w ke C 21 7 dialog Change as needed then click Update Fig 49 DSPEC 50 MDA Preset Tab To remove a preset click to high light it in the table then click Delete IMPORTANT These MDA presets are not dynamically calculated Each time you add an MDA preset to this table its CorrectionFactor value is calculated and stored in the MCB s memory If you then load a different library change the efficiency calibration or change the system geometry the spectroscopy application will not update the existing CorrectionFactors and your MDA presets may no longer be applicable When using spectrum analysis applications such as GammaVision and ScintiVision you can create an analysis options file SDF or SVD file for each system geometry that you use and include in it a set of MDA presets specific to that geometry efficiency calibration and nuclide library You can then recall this tailored analysis options file as needed 52 Nuclide Report Tab 3 MENU COMMANDS Figure 50 shows the Nuclide Report tab The Nuclide Report displays the activity of up to nine 9 user selected peaks Once the report is set up the two lowest energy ROIs and their respective activity readouts are displayed on the DSPEC 50 s Spectrum screen The peak area calculations in the hardware use t
58. 25 0 15 6 1061 51 1070 39 202364 10277 653 1066 00 1 77 2 73 Bi 207 1063 66 0 26 0 02 7 1107 40 1116 29 209450 43111 635 1111 89 1 82 2 80 Eu 152 1112 12 5 96 0 09 2 3 4 5 3 Buffer 10 IDM 200 MAE v7 Cx v8 Co60 Cs134 Spc IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 Fig 34 Column Style ROI Report On Screen 32 3 MENU COMMANDS 4 1 8 Compare This function displays a spectrum from disk along with the current spectrum so the two can be visually compared A standard file recall dialog box opens Once the desired spectrum file is selected the Expanded Spectrum View shows both spectra as illustrated in Fig 35 8 Se Maestro IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs134_120701_1 Spc IDM 200 MAE v7 Cx v8 Co60 Cs134 call File Acquire Calculate Services ROI Display Window Sa zchel Slo XK oa fs a 2 9 44 fons ow20 3 Pulse Ht Analysis Z Mcb 6 IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs134_120701_1 Spc IDM 200 MA fete stat 7 02 14 PM 74122012 Real 50 98 Live 45 48 Dead Preset Limits 3 ROI at K Peak at K Library ei ORTEC 7 47 48 PM Sun 74142012 Marker 2 391 891 64 kev 65 Cnts COMPARE Shift Up or Shift Down changes offset ESC cancels Fig 35 Compare Mode Screen Note that the spectra in this illustration are displayed in Fill All mode in which all of the area under the peaks is filled with a color different from the background se
59. 41 97520 89 23 11 1009 69 1018 57 18129749 17681789 1014 24 1 79 2 76 Cs 138 1009 78 1111 00 0 27 1034 86 1043 74 209181 18171 1039 11 1 85 2 87 3 135 1038 76 4 25 0 15 1061 51 1070 39 202364 10277 1066 00 E E 274 Bi 207 1063 66 0 26 0 02 1107 40 1116 29 209450 43111 1111 89 1 82 2 80 Eu 152 1112 12 5 96 0 09 Fig 32 Column Style ROI Report 31 MAESTRO v7 Software User s Manual B ROI Peak Search Report for IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 IDM 200 IDM 200 MAE v7 Cx v Co60 Cs137 Cs134 RANGE 927 455 97keV to 941 462 88keV AREA Gross 2295833 Net 924008 1726 CENTROID 934 02 459 43keV SHAPE FWHM 1 48 FW 1 5 M 2 31 ID Mo 99 at 457 60keV Corrected Rate 212887 84 397 66 cA 338 Buffer 10 IDM 200 MAE v7 Cx v8 Co60 Cs134 Spc IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 Fig 33 Paragraph Style ROI Report On Screen B ROI Peak Search Report for IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 IDM 200 IDM 200 MAE v7 Cx v Co60 Cs137 Cs134 ROI RANGE keV GROSS NET CENTROID FWHM FW 1 5 M LIBRARY keV 1 455 97 462 88 2295833 924008 1726 459 43 1 48 2 31 Mo 99 457 60 212887 84 397 66 602 05 608 96 2239318 651320 1741 605 33 1 55 2 37 Sb 126 605 40 874 61 2 34 888 78 896 67 20825841 19687204 4666 892 96 1 75 2 66 Bi 212 893 41 97520 89 23 11 1009 69 1018 57 18129749 17681789 4318 1014 24 1 79 2 76 Cs 138 1009 78 1111 00 0 27 1034 86 1043 74 209161 18171 657 1039 11 1 85 2 87 J 135 1038 76 4
60. 54 SOUNDS oder Belt wig ent dele dal e iu lu 53 A Beete Gee lt a an 62 Optimiza 40 64 Password lock a detector 3 77 116 124 Peak Infos tr ets ed 69 89 Peake ee A 68 PHA TEE 62 63 Pileup reject marker asista Bi dal ay ans 62 PONE CIO capire gies eee hee bind Gus 40 42 64 A ccd Sth ete Neda eee a 49 Print e EE EE 29 127 Program examples for reading spectra 143 Pulse height analysis PHA 1 Realtime des tala 50 Recall r ad SEU eS ere AE He ROME ted s ei end 81 Region of interest see ROI 19 Report ROL 3 ev ee rte ese ease 29 Resistive Feedback serias 40 Resol eg nenes 41 42 62 64 Resolution Enhancer siria 44 Right mouse button menu 15 88 INDEX Clear ROD lt span alto anal 89 Maik NEE 89 Peak IDO rta ad 89 vi 90 Undo Zoom iss gege tee Bey ba 89 ZOOM OMG sacadas ba 89 Rise Wine sua eu tt oy e est ae 41 42 64 E NEEN 18 68 94 Auto ICAL ss akg bay dora EE 81 Clear EE 13 81 89 95 Clear A NEE 81 EE 13 80 89 95 Mate EEN 80 Dos a pla 80 Recall FIE Ga iaa ads edad 81 TEPORE soni irt bet dey to lio esi 29 Save File rai is salida dd 81 Sala is da 10 98 BET Et cai dd 80 RO ME rra e dea dee 4 79 ROLStatUS ee rias ded 10 98 R bber rectangle iii bet 16 89 Save EEN o ds e 137 ROKE aras aa 81 SPECTO etss 27 29 Scaling EE 14 83 linear EE nane ee ilaele 14 83 logarithmic td press dai 14 83 Screen Capture erica lo tetti 97 Servic
61. 6 4 LT 53406 6 IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 RANGE 927 455 97kev to 941 462 88kev AREA Gross 2295833 Net 924008 CENTROID 934 02 459 43kev SHAPE FWHM 1 48 FW 1 5 M 2 31 ID Mo 99 at 457 60kev Corrected Rate 212887 84 397 66 CA RANGE 1223 602 05kev to 1237 608 96kev AREA Gross 2239318 Net 651320 CENTROID 1229 64 605 33kev SHAPE FWHM 1 55 FW 1 5 M 2 37 ID Sb 126 at 605 40kev Corrected Rate 874 61 2 34 CA RANGE 1804 888 78kev to 1820 896 67kev AREA Gross 20825841 Net 19687204 4666 CENTROID 1812 47 892 96kev SHAPE FWHM 1 75 FW 1 5 M 2 66 ID Bi 212 at 893 41kev corrected Rate 97520 89 23 11 cA RANGE 2049 1009 69kev to 2067 1018 57kev AREA Gross 18129749 Net 17681789 4318 CENTROID 2058 23 1014 24kev SHAPE FWHM 1 79 FW 1 5 M 2 76 ID Cs 138 at 1009 78kev corrected Rate 1111 00 0 27 cA Fig 31 Paragraph Style ROI Report r 7 120628 Cs134 Co60 on endcap IDM 200 Rpt Notepad Detector 19 ACQ 27 Jun 2012 at 19 12 55 RT 57536 4 LT 53406 6 IDM 200 IDM 200 MAE v7 Cx v8 Co60 Cs137 Cs134 ROI RANGE kev GROSS NET CENTROID FWHM FW 1 5 M LIBRARY kev CA 455 97 462 88 2295833 924008 459 43 1 48 2 31 Mo 99 457 60 212887 84 397 66 602 05 608 96 2239318 651320 605 33 1 55 VARE Fg Sb 126 605 40 874 61 2 34 888 78 896 67 20825841 19687204 892 96 1 75 2 66 Bi 212 893
62. 6 8 5 5 4 Zoom In Zoom Out Keypad lt gt lt gt Keypad lt gt increases the scale of both axes in the Expanded Spectrum View so the peaks appear larger while Keypad lt gt does the opposite making the peaks look smaller The scale value for both axes is always shown on the toolbar These functions are duplicated by the Zoom In Zoom Out toolbar buttons 5 5 5 Fine Gain Keypad lt Alt gt lt Alt gt These accelerators step the internal amplifier up or down by one increment of fine gain on the selected Detector 1f 1t has a software controlled amplifier The new fine gain setting 1s shown on the Supplemental Information Line at the bottom of the screen If the gain stabilizer is active the display of the histogram data might not change The fine gain can also be set with Acquire Adjust Controls Section 3 2 3 keyboard lt Alt gt lt Alt gt and lt Shift Alt gt lt Shift Alt gt 100 6 JOB FILES A MAESTRO JOB file consists of one or more lines of ASCII text representing a series of commands that can automate most of the functions described earlier in this manual The details of the commands and the required syntax are given in this chapter A JOB file can be created within MAESTRO using the Services Job Control function or in Windows Notepad or any other ASCII editor A JOB file can be started from the Run JOB File dialog accessed via the Services Job Control command by including
63. ART_OPTIMIZE For the DSP type only this starts the optimize function for the detector START_PZ This starts the pole zero function for the detector It is automatically included in the optimize function Not supported on all MCBs STOP This command stops data collection in the active Detector If the Detector has already been stopped no operation occurs This command has the same function as Stop under the Acquire menu 123 MAESTRO v7 Software User s Manual STOP_PZ This stops the pole zero function for the detector Note that the pole zero function is not complete when this is used The pole zero function should be allowed to complete automatically Not supported on all MCBs STRIP lt factor gt file chn This command strips the disk spectrum specified in the SET_NAME_STRIP command or in the command itself either way is acceptable the filename is optional in this command from the spectrum in the buffer and stores the results in the buffer The disk and buffer spectra must be the same size The disk spectrum can be scaled up or down by lt factor gt a constant or 1f lt factor gt is zero by the ratio of the live times of the two spectra UNLOCK Pwd Unlocks the current Detector using Pwd as the password VIEW i This command moves the 66599 1 th stored spectrum to position 0 WAIT lt seconds gt This command suspends execution of the JOB until either the active Detector stops counti
64. CTED AT 2u 2u 2u ON 2u s 4u n hour minute second day month year printf STARTING CHANNEL d n chan_offset printf NUMBER OF CHANNELS d n num_chans BRK KKK KK KH KK KK KH KK KK KH KKK KKK KK IATA AA KK KH KKK KKK KKK KKK KKK Channel Data Output channel data from CHN file AS f printf CHANNEL DATA n for count 0 count lt num chans count if count 6 0 6 channels per line printf n 7d count with channel number fread amp chan data sizeof chan data 1 f pointer printf s11d chan data fcloseall exit 0 148 APPENDIX C ERROR MESSAGES Errors are displayed in warning boxes or in some cases in the information line at the bottom of the window Acquisition failure For some reason an acquisition function failed from a JOB file Already started Detector already active when a START acquisition command was issued Altering Detector data Restoring data to a Detector would destroy the data already there Amplifier not pole zeroed Warning from a 92X indicating that the Detector should be pole zeroed Attempt to dynamically link to a task The Windows Error 5 was detected Auto PZ aborted The 92X Auto PZ function was aborted by lt Esc gt Buffer and Detector not same size Buffer and Detector memory incompatible Error when trying to restore data which does not match the Detecto
65. Conversion Gain 12250 Off v Lower Level Disc 50 ZDT Mode SS Off Upper Level Disc 116383 Real Time Live Time 0 00 Count Rate 0 0 00 Fig 43 DSPEC 50 ADC Tab 45 MAESTROS v7 Software User s Manual Anticoincidence the gating input signal must not be present for the conversion of the detector signal The gating signal must occur prior to and extend 500 ns beyond peak detect peak maximum ZDT Mode Use this droplist to choose the ZDT Mode to be used for collecting the desired zero dead time spectrum see Section 4 2 8 4 The three modes are Off LTC only NORM_ CORR LTC and ZDT and CORR_ERR ERR and ZDT If one of the ZDT modes is selected both spectra are stored in the same spectrum SPC file If you do not need the ZDT spectrum you should select Off In MAESTRO the display can show either of the two spectra Use lt F3 gt or Acquire ZDT Display Select to toggle the display between the two spectra In the Compare mode lt F3 gt switches both spectra to the other type and lt Shift F3 gt switches only the compare spectrum This allows you to make all types of comparisons Conversion Gain This sets the maximum channel number in the spectrum If set to 16384 the energy scale will be divided into 16384 channels The conversion gain is entered in powers of 2 e g 8192 4096 2048 The up down arrow buttons step through the valid settings for the DSPEC 50 Upper and Lower Le
66. E SRTTME STRTCH LNGTDT C Check to see if the first word is a numeric 1 if not C then quit IF TYPE NE 1 GO TO 1000 C It s good so write out all the data from the header C note that the start time is split into two parts WRITE 0 150 TYPE MCA SEG RLTIME 50 1 LVETME 50 SRTTME SRTSEC SRTDTE STRTCH LNGTDT 150 FORMAT TYPE I4 MCA 12 SEGMENT 1 13 REALTIME I10 SECONDS LIVETIME 2 110 SECONDS DATA COLLECTED AT 2A41 2Al 3 2A1 ON 2A1 3A1 2A1 4 STARTING CHANNEL 1I6 NUMBER OF CHANNELS 5 16 C The first trailer record is after the last channel data C Divide the length by 8 because there are 8 channels per C record LREC 3 CHNLEN 1 8 Read the first trailer record TLRTYP is the record type The variables IS and X1 are dummys maintain the position in the file READ LUN REC LREC ERR 100 TLRTYP IS ENG 1 ENG 2 1 X1 FW 1 FW 2 WRITE 0 160 ENG FW 160 FORMAT ENERGY ZERO 1 E14 8 FWHM ZERO ana 1 E14 8 ENERGY SLOPE 1 E14 8 FWHM SLOPE E14 8 144 APPENDIX B MAESTRO FILE FORMATS C Ask the user for the channel number to print out WRITE 0 200 200 FORMAT Enter channel number C Get the channel number READ 0 210 I CHNNL 210 FORMAT I5 C Calculate the block of 8 channels that this one is in C There are 8 channels in a record of 32 bytes
67. EN Z4 JawWOYS SJ ION MIEIN ZI Jang ot Adog GOW 12919 MIA III 24 UV dos Hes usa19s 9 puueyo 1 mo 0 dunf ugbBd u usa19s 9 1 jouueyo 1ayBiy ot dunp dnbd u 10393391 99 2S Z o 1 4 LD S iv UV TZ UV L IV Fig 89 MAESTRO Keyboard and Keypad Accelerators 93 MAESTRO v7 Software User s Manual If the horizontal scale is expanded when the marker reaches the edge of the spectrum window the next key press past the edge shifts the window to the next block of channels in that direction such that the marker is now in the center of the display When the ROI mode is set to Mark the lt gt lt gt keys cause the channels to be marked as the marker moves Similarly they clear the ROI bits while the ROI mode is UnMark see Section 4 5 5 2 2 Next ROI lt Shift gt lt Shift gt The lt Shift gt gt or lt Shift gt move the marker to the beginning of the next higher channel ROI or the end of the preceding ROI respectively of the displayed spectrum These functions are duplicated by the ROI indexing buttons on the Status Sidebar 5 2 3 Next Peak lt Ctrl gt gt lt Ctrl gt The lt Ctrl gt gt and lt Ctrl gt keys perform a peak search on the spectrum in the higher or lower channel direction respectively and move the marker to the first peak found If no peak is found the program displays the No More Peaks message and the marker does not move If th
68. ENEE cetas 5 22 Step 2 Installine MAESTRO EE EE 5 2 3 Step 3 Running MCB Configuration to Establish Communication With Your ORTEC MEB S ere O ar Een ey e e EE de 5 2 3 1 Configuring a New Instrument EEN 6 2 3 2 Customizing ID Numbers and Descriptions 7 2 3 3 Editing the MCB Configuration Command Lime 8 oO DISPLAY FEATURES ee DAA EA IAS 9 Saks StartUp aae e Er E E ee e de H E EE EE H 3237 Spectrum Displays EE 12 ALS TOCA Ae ee AIR RIE e eta 13 3 9 USME hE MOUSE A EE 15 3 5 1 Moving the Marker with the Mouse amis RETI TERE 15 3 5 2 The Right Mouse Button Menu 15 3 5 3 Using the Rubber Rectangle EEGEN 16 3 5 4 Resizing and Moving the Full Spectrum View 0 eae 16 3 0 Buttons and BOXES eresse e de vane neater ian eee hae erates 17 3 7 Opening Files with Drag and Drop e ead ds Gee d ees 18 3 8 Associated Piles AA AA IA CES Ree pee ee ees 18 4 En RRE RA E RE EE 19 A dereen ee Ed EE Ue RA 21 4 Vole SUING EE 21 Mb D General tus way EE EE 21 MED ERP EE 22 ATEO o ee 23 MAESTRO v7 Software User s Manual Initial Directory Run Options 4 1 1 3 Import fsi Arguments Initial Directory Default EE Run Options 4 1 1 4 Directories Ea A Recall a wins tee Doe EE 4 1 3 Save and Save AS de vee ee ees AWA Export EEN A EE ee E ee 4 40 A A 4 1 7 ROI Report rss aca ds 4 1 7 1 Printing to a Printer and or F
69. It is not completely filled in and does not extend above the data 129 MAESTRO v7 Software User s Manual Text The Axis Labels and the text Description from the file can be printed The description includes the sample detector and acquisition description Horizontal If the spectrum to be plotted is calibrated the plot can be either in Energy or Channel numbers If the spectrum is not calibrated this value is set to channel and cannot be altered Tic Marks small lines indicating the scale on the axes can be included Including them makes the plot more readable Grid Lines can also be included The grid lines are lines across the complete width of the plot at the major tic marks The plot can either be the complete spectrum or any part of the spectrum Unmarking Full Scale will enable the Range button Selecting Range will open the dialog shown in Fig 96 so you can set the limits for the plot The range of the plot can be either in Channels or Energy indepen dent of the plot labeling In order to easily compare spectra the energy can be set to values below the first channel in the spectrum In this case the data below channel 0 are plotted as 0 Vertical One of the two choices Log and Linear can be selected by clicking on the appropriate radio button The linear scale is set by clicking on Range Tic Marks small lines indicating the scale on the axes can be included Including them makes the plot more readable Grid
70. LAY FEATURES that type Alternatively you can turn off the Multiple Windows feature and run in the original one window at a time mode Spectrum windows can be moved sized minimized maximized and closed with the mouse as well as tiled horizontally or vertically from the Window menu When more than one window is open only one is active available for data manipulation and analysis at a time The title bar on the active window will normally be a brighter color than those on the inactive windows the color scheme will depend on your Windows desktop theme Detector windows or buffer windows containing a spectrum from a Detector will list the Detector name on the title bar If you have opened a spectrum file into a buffer window the title bar will display the filename To switch windows click on the window that you wish to activate use the Window menu see Section 4 7 or cycle between windows by pressing lt Ctrl Tab gt Each spectrum window contains an Expanded Spectrum View and a Full Spectrum View see items 7 and 8 below The Expanded Spectrum View shows all or part of the full histogram this allows you to zoom in on a particular part of the spectrum and see it in more detail You can change the expanded view vertical and horizontal scaling and perform a number of analytical opera tions such as peak information marking ROIs or calibrating the spectrum This window contains a vertical line called a marker that highlights a
71. O v7 Software User s Manual InSight Mode Controls The Status Sidebar changes from the PHA mode controls to the InSight controls for adjusting the peak display Fig 51 On the left is a vertical scrollbar for adjusting the vertical offset of the waveform The value of the offset is shown on the display Double clicking the mouse in the scrollbar will set the vertical offset to the vertical value of the channel at the marker position This is to conveniently zoom in on a particular part of the waveform such as the tail for pole zeroing In the Auto trigger mode the display is updated every time a new pulse exceeds the trigger level To keep a single pulse displayed select Single Click on Reset to refresh the display to see the next pulse There will usually be one or two pulses in the pipeline that will be displayed before any change entered will be seen If the trigger is turned off the display will be redrawn periodically even if no pulse is there The Delay setting is the time delay between the pulse shown on the display and the trigger level crossing The value of the time delay is shown on the display Just as for the PHA mode display the vertical scale can be adjusted with the vertical adjust ments The display can be set to Log mode but the peak shapes do not have a familiar shape in this display The Auto mode will adjust the vertical scale for each pulse The pulse is shown before the amplifier gain has been applied so t
72. O are to display the spectrum data and to provide an easy and straight forward way to manipulate the data This is accomplished using the Display menu functions shown in Fig 78 and their associated accelerators The Display functions are available in both the Detector and buffer modes 4 6 1 Detector Selecting this function opens the Pick Detector list shown in Fig 79 Click on a Detector on this list to display its memory in the Full and Expanded Spectrum Views The Pick Detector list shows the available Detectors listed by Detector number and a brief description This is duplicated by the Detector droplist on the toolbar see Detector Ctrl lt Fn gt Detector Buffer F4 or Alt 6 v Logarithmic Keypad Automatic Keypad Baseline Zoom Zoom In Keypad Zoom Out Keypad Center Keypad 5 Full View Alt F7 Isotope Markers Preferences Fig 78 Display Menu page 14 In addition the first 12 Detectors on the list can be selected by pressing lt Ctrl F1 gt for the first Detector in the pick list lt Ctrl F2 gt for the second Detector and so on through lt Ctrl F12 gt see Section 5 4 8 The current pick list is selected from the Master Detector List using Services Edit Detector List as discussed in Section 4 4 5 4 6 2 Detector Buffer This command switches the active window spectrum and Status Sidebar displays between the last active Detector and the last active buffer The Full
73. OMMANDS The live time is set to the real time within the analysis engine during the analysis of ZDT spectra Table 1 shows which spectra are collected in the three possible ZDT modes Table 1 ZDT Modes Mode Uncorrected ZDT Corrected ZDT Error Spectrum Spectrum Spectrum Off ZDT Disabled Yes No No NORM_CORR ZDT LTC Mode Yes Yes No CORR_ERR ZDT ERR Mode No Yes Yes Choosing a ZDT Mode When the counting rate is essentially constant during the time required to acquire the spectrum the standard mode ZDT Off is the preferred mode only the uncorrected spectrum is collected and stored in the spectrum file But if the counting rate varies significantly during the measurement time the standard mode will not yield the proper dead time corrected counting rate This can be most easily understood by noting that the uncorrected mode compensates for dead time losses by extending the real counting time Hence a sample containing both a short lived high activity isotope and a long lifetime lower activity isotope will experience very high dead time losses during the first few seconds of the measurement as the short lifetime isotope decays rapidly This high dead time will cause the counting time to be extended after the short lived isotope has decayed to zero activity and the system will count the low activity isotope for the extra time Consequently the average activity of the short lived isotope will be under estimated If you anticip
74. ORTEC MAESTRO MCA Emulator for Microsoft Windows XP Professional SP3 and Windows 7 x32 and x64 A65 BW Software User s Manual Software Version 7 0 Printed in U S A ORTEC Part No 777800 0812 Manual Revision P Advanced Measurement Technology Inc a k a ORTEC a subsidiary of AMETEK Inc WARRANTY ORTEC DISCLAIMS ALL WARRANTIES OF ANY KIND EITHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE NOT EXPRESSLY SET FORTH HEREIN IN NO EVENT WILL ORTEC BE LIABLE FOR INDIRECT INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING LOST PROFITS OR LOST SAVINGS EVEN IF ORTEC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES RESULTING FROM THE USE OF THESE DATA Copyright 2012 Advanced Measurement Technology Inc All rights reserved ORTEC is a registered trademark of Advanced Measurement Technology Inc All other trademarks used herein are the property of their respective owners TABLE OF CONTENTS PC Requirements and Notes page 2 Installation page 5 1 INTRODUCTION coi ce toad we Soper i ranean Greate ee Sede eprint de en ane eRe ea eet 1 TA MECA EE EE EE 1 2 eG e ET 2 1 3 MCB Supportin MAESTRO VT SA teem tele ne VE 2 14 Detector Securit Ae cae BE WHERE ESS 3 EX List Mode SUpport EE eve te dene AA EE 3 2 INSTALEING MAESTRO oc spate eh ee A A rte See pees uae 5 2 1 Step 1 Installing CONNECTIONS
75. OTS and display that spectrum The main WINPLOTS display is shown in Fig 90 fr Ha WinPlots IDM 200 MAE v7 Cx v8 Co60 Cs134_120703_1 Spc Sex File Options Help IDM 200 MAE vi Cx v8 Co60 Cs134_120703_1 Co 60 and Cs 134 on endcap 1 0807 1 0806 1 0058 10000 Counts 1000 0 10 10 d coral srol ug ul a LI Hi SSES A A 1 1528 00 3057 00 4586 00 6115 00 Energy keV Acquired 7 3 2012 11 46 33 AM Real Time 194623 42 s Live Time 187462 78 s File C AUsertIDM 200 MAE vi Cx 8 Co60 Cs134_120703_1 Spc Channels 16384 Detector 19 1DM 200 7 5 2012 8 05 08 PM Fig 90 The Main WINPLOTS Display 127 MAESTRO v7 Software User s Manual 7 1 1 File Figure 91 shows the File menu These menu items select the spectrum and ROI to be displayed read and write the settings file and actually make the plot Once a file has been selected using the Recall Spectrum function see the file recall dialog shown in Fig 92 it is automatically previewed using the current settings The Show Description option allows you to preview the sample description 1f any file type and number of channels at the bottom of the dialog to aid in selecting the correct file Recall Spectrum Recall ROL Print Plot Recall Settings Save Settings As Exit Alt F4 Fig 91 The File Menu G Yuu Recall a spectrum file for plotting
76. P SPECTRA END_LOOP Executes the commands within the loop once for each spectrum stored in the Detector hardware MARK_PEAKS Sets ROIs on all peaks in the active Detector or buffer window QUIT Terminates this copy of MAESTRO RECALL file chn Reads the spectral data file to the buffer RECALL_CALIB file chn Loads the calibration data from the spectrum in the disk file to the buffer calibration parameters The spectrum is not changed RECALL_ROI file roi Sets the ROIs from the table in the file REM Text This line is a comment remark and is ignored during command processing 104 6 JOB FILES REPORT filename Writes the ROI marked peak report to the disk filename or to the printer PRN RUN program Executes an application program EXE by default RUN_MINIMIZED program Same as the RUN command above except that the application is run initially as an icon minimized rather than as a normal window SAVE file chn Saves the spectrum in the active Detector or the buffer in the disk file SAVE_ROI file roi Saves the table of ROIs in the active Detector or the buffer in the disk file SEND_MESSAGE text Sends the text as a command to the Detector SET_BUFFER Selects the buffer same as SET_DETECTOR 0 SET_DETECTOR lt number gt Selects the Detector or buffer 0 SET_LIST Switches the currently selected Detector from PHA mode to list mode SET_NAME_ST
77. PC or CHN file If one filename is given default is to convert that file to the other format i e for AAA SPC the output will be AAA TXT If two filenames are given the default is to convert the spectrum to text The TXT file will be overwritten even if the SPC file is not located An example is TRANSLT SPC GOODSPEC TXT TEXTSPEC ni nh coli This will generate a text file of one column with no header no analysis information and one channel per line 140 APPENDIX A STARTUP To start MAESTRO enter mae in the search programs and files box then click on the MAESTRO for Windows search result or open the Windows Start menu and click MAESTRO then MAESTRO for Windows Fig 107 You can also start the application by entering a command line in the search programs and files box or in XP the Windows Run dialog with or without arguments as described in the next section do MAESTRO N Z MAESTRO for Windows Z MAESTRO User Manual CH MCB Configuration W Nuclide Library Editor SZ ORTEC File Structures Manual YE WinPlots d Back Fig 107 The MAESTRO Start Menu A 1 Command Line Options The form of the command line for invoking MAESTRO is MCA32 exe P listname L file lib file job B All of the arguments are optional one or more can be omitted Thus at a minimum MAESTRO can be executed without any arguments at all in which case certain defaults apply for the Detector list and
78. RIP file chn Sets the strip file SET_PHA Switches the currently selected Detector from list mode to PHA mode SET_PRESET_CLEAR Clears all presets in active Detector SET_PRESET_COUNT lt n gt Sets the ROI Count preset to lt n gt counts 105 MAESTROS v7 Software User s Manual SET_PRESET_INTEG lt n gt Sets the ROI Integral preset to lt n gt counts SET_PRESET_LIVE lt t gt Sets the live time preset to lt t gt seconds SET_PRESET_REAL lt t gt Sets the real time preset to lt t gt seconds SET_PRESET_UNCERTAINTY lt uncertainty limit gt lt low channel gt lt high channel gt Sets the statistical preset in supported instruments only to the uncertainty SET_RANGE M dd yyyy hh mm ss lt t gt SET_RANGE r t Displays a time slice of data from a LIS file that has been recalled into a buffer SMOOTH Smooths the spectrum in the buffer START Starts the active Detector START_OPTIMIZE Starts the optimize function for the detector DSPEC only START_PZ Starts the pole zero function for the detector STOP Stops the active Detector STOP_PZ Stops the pole zero function for the detector DSPEC only STRIP lt factor gt file Strips a spectrum file from the buffer UNLOCK Pwd Unlocks the current Detector using Pwd as the password 106 6 JOB FILES VIEW i Moves the 1 th stored spectrum to position 0 WAIT lt seconds gt Wa
79. S fe ZS Run JOB File Look in 1 User lr Eich E JOB Control Running SpectrumTest job Name Date modified Type Size di C 7 2 2012 8 05PM Filefolder n EE E SpectrumTest job 7 5 20127 00PM ORTEC Job File 1KB Fig 67 Terminate Current JOB File name SpectrumTest job Files of type Job Files M Cancel V Show Contents SET_DETECTOR 6 A Sr SET_PRESET_CLEAR rap SET_PRESET_LIVE 1000 LOOP 10 CLEAR START WAIT Fig 66 Select and or Edit JOB File e Select a file from the list and click on the Edit File button This will open the JOB file in a Windows Notepad window e Edit as desired then use the Notepad Save or Save As command to save the changes or close Notepad without saving to cancel the changes e Close Notepad The newly edited file will be shown in the Run JOB File dialog s Show Contents list box If a JOB is terminated prematurely because of some error condition a message box briefly explaining the cause of the error will be displayed More details on the error can be found by cross referencing with the error message directory in Appendix C 4 4 2 Library The commands on this submenu Fig 68 allow you to select the Select Peak nuclide library to be used and display the peaks list MAESTRO v7 Galant File uses the GammaVision Library Editor supplied see Section 7 2 for a detailed discussion so you can now use LIB or MDB type Access da
80. Stored When the ZDT mode is set to NORM_CORR the two spectra stored are the LTC spectrum and the ZDT spectrum corrected for the dead time losses real time only Unfortunately in the analysis of the ZDT spectrum the uncertainty of the measurement cannot be determined using either spectrum NOTE This mode is not useful for quantitative analysis if the counting rate varies significantly during the measurement time particularly if the user desires an accurate counting rate and standard deviation calculation When you select the NORM_CORR mode GammaVision ignores the ZDT spectrum and analyzes the LTC spectrum as it would for the Off ZDT mode CORR_ERR ZDT and Error Spectra Stored In the CORR_ERR mode the estimation of the statistical uncertainty is stored in place of the LTC spectrum and is referred to as the error spectrum ERR In this mode the ZDT spectrum is used to measure the counts in a peak and the error spectrum is used to determine the uncertainty of the measurement made in the corrected spectrum For example if the area of a peak is measured in the corrected spectrum by summing channels 1000 to 1100 the variance of the measurement can be determined by summing the counts in channels 1000 to 1100 in the error spectrum Or shown another way the counts in channel i can be expressed as M y V i with a 1 sigma confidence limit where N is the corrected spectral data and V is the variance error spectral data 3 MENU C
81. TC or ERR spectrum Used in combination with lt F3 gt or Acquire ZDT Display Select it allows you to display the normal to ZDT uncertainty to ZDT ZDT to normal or ZDT to uncertainty comparisons 98 5 KEYBOARD COMMANDS 5 4 4 Detector Buffer lt F4 gt The lt F4 gt key switches between the display of the data in the Detector and the data in the buffer It duplicates the function of lt Alt 6 gt and Display Detector Buffer see Section 5 3 5 5 4 5 Taller Shorter lt F5 gt lt F6 gt These keys decrease or increase the vertical full scale of the displayed spectrum so the peaks appear taller or shorter respectively They duplicate the function of the lt gt and lt l gt keys The vertical scale value is always shown on the toolbar 5 4 6 Narrower Wider lt F7 gt lt F8 gt These keys increase or decrease the horizontal scale of the data display so the peaks appear narrower or wider respectively They duplicate the function of lt gt and lt gt keys The horizontal scale value is always shown on the toolbar 5 4 7 Full View lt Alt F7 gt Full View adjusts the horizontal and vertical scaling to display the entire spectrum in the Expanded Spectrum View This duplicates Display Full View see Section 4 6 9 5 4 8 Select Detector lt Ctrl F1 gt through lt Ctrl F12 gt These keys open a new window and display the spectrum for the specified Detector n where n 1 to 12 corresponding to lt Ctrl Fn
82. To change a color click and hold the left mouse button on the scroll bar button and drag it slowly across the different colors When the desired color is displayed in the box beside the OK button release the mouse button The spectrum window will immediately change color To cancel a color change return the slider button to its starting color or close the Spectrum Colors palette by clicking on Cancel or pressing lt Esc gt To reset to the default colors click on Defaults To accept the color changes click on OK These color changes will be used the next time MAESTRO is started 86 Background full Foreground full ROI full Compare Composite Mult Peaks Special _4 i b a Defaults Cancel Fig 85 Display Color Selections 3 MENU COMMANDS NOTE The Spectrum Colors affect only the spectrum windows The colors of the remaining features on the screen must be changed using the Windows Control Panel which will also of course affect the appearance of all other Windows applications on this PC 4 6 11 3 Peak Info Font Color f This function opens the Font dialog Font Fig 86 It allows you to select the Font Font style Size font type size and color used to display ee A Peak Info data in the text box in the m r Come w fecal spectrum windows see Section 4 3 5 alatino Linotype Bold ba Fi 60 Segoe Print Bold Oblique 24 8 egot Scri
83. VE JobTest Spc SAVE JobTest Spe REM REM Close all windows and recall the list mode file just created REM CLOSEMCBS CLOSEBUFFERS RECALL JobTest Lis REM 112 6 JOB FILES REM Recall a time slice of the data with the SET_RANGE command using the REM absolute date time and duration in whole seconds REM SET_RANGE 6 29 2012 14 05 00 900 REM REM Save the partial list mode file in the four supported file formats REM SAVE JobTest2 Lis SAVE JobTest2 Chn SAVE JobTest2 Spc SAVE JobTest2 Spe SAVE REM Close all buffer windows REM CLOSEBUFFERS REM REM Recall the original list mode file REM RECALL JobTest Lis REM REM Recall a data time slice with SET_RANGE using a starting real time and duration REM SET_RANGE 900 900 REM SAVE JobTest3 Lis SAVE JobTest3 Chn SAVE JobTest3 Spc SAVE JobTest3 Spe REM REM Set the MCB back to PHA mode REM CLOSEBUFFERS SET_DETECTOR 12 SET_PHA 6 5 JOB Command Details ASK_PASSWORD Used to define the password and owner to be used in the JOB file Passwords can be used to lock an unlocked detector unlock and use one that is locked or lock one for the duration of the job and then unlock it The actual lock unlock is done with LOCK and UNLOCK respectively This command is used to set the internal password variable PASSWORD to the user input so the password will
84. X B MAESTRO FILE FORMATS LL 143 Bel MAESTRO Fil Types Tego SS EA eeu EE 143 BL Detector TEE 143 BAZO Spectrum les e Ween te 143 Ra Wiscellaneous Piles a seh e Ao 143 TABLE OF CONTENTS B 2 Program Examples lt P He om wo MDS A i 143 B21 FORTRAN Language cae ce eile eee e ERT ee eee Ee FR ERE 144 EN Ee E TEE 144 Be ROL EG 145 B 2 2 C Language 146 VAGA EEE AAA AE E RA Ee tai APPENDIX C ERROR MESSAGES DN OO EEN EE E E E E ENEE EE E E ENEE E EE EE E NEEN E E EE M M 1 O INDEX Se ri E A EA E E A EE 159 e NOTE We assume you are thoroughly familiar with Microsoft Windows usage and terminology If you are not fully acquainted with the Windows environment we strongly urge you to read the Microsoft documentation supplied with your Windows software and familiarize yourself with a few simple applications before proceeding The convention used in this manual to represent actual keys pressed is to enclose the key label within angle brackets for example lt F1 gt For key combinations the key labels are joined by a within the angle brackets for example lt Alt 2 gt 1 INTRODUCTION Welcome to MAESTRO version 7 This latest release of the world s most popular multichannel analyzer MCA emulation software supports the 32 and 64 bit Microsoft Windows 7 operat ing system and continues support for Windows XP SP3 The multiple windows command allows you to choose between using a multi dete
85. a with a granularity of 1 second To extract data at a higher resolution use our Al 1 B32 Programmer s Toolkit in conjunction with your instrument s firmware commands documented in the hardware manual to write your own applications The first time you start a Detector in List Mode MAESTRO creates a Detector specific LIS file in C User Cxt that stores the accumulating list mode data The file is closed each time you stop data acquisition If you leave the Detector in List Mode and the Detector window open you can stop and restart acquisition and the new data will be appended to the Detector specific LIS file These data are retained until the next time this Detector is switched from PHA to List Mode MAESTRO v7 Software User s Manual either manually or by closing and reopening the Detector window at which point the old data will be cleared Most users will save the data as soon as acquisition is stopped and before switching back to PHA Mode However any time before the next list mode acquisition is started you can use the Recall command to open the Detector specific LIS file from the Cxt folder to a buffer window and save it in LIS format under a new filename In addition to the list mode data MAESTRO adds the Detector s current calibration and sample description to this file Note that List Mode allows you to clear the data during acquisition however regions of interest ROIs cannot be marked in a List Mode window
86. ancer 44 ROT integral preset 50 ROI peak count preset 50 stabilizer setup AE 46 uncertainty preset eer eg 50 upper level discriminator 46 zero dead time ZDT mode 46 EE ds dee EE e arpa 34 Expanded Spectrum View 11 12 Export eu EE 23 MAESTRO v7 Software User s Manual DEE ege O 22 Spectrum aiutarlo elet 28 File A ee 22 EE tee iero 24 tecall speci deg ohne eel deeg a 26 save spectrum rito 27 File men e ele be 21 EE 21 Fine PU EE 96 ee 42 62 64 A fatal 40 42 64 MW a es 41 42 64 Full Spectrum View is de 11 12 sizing and EEN 16 BW IND opori monen eege 65 69 FWHM da oa e 68 69 Gain RR Oe Rae ORES 96 Gain stabilizaliont sin ala 46 le 46 EE EE EE 56 operation details es usina es wey ld 56 Came EE 63 Highivolose o a elen Dr 47 Horizontal Scale sassi eet la 99 Center Gioie 14 DSiehtmode neeaaea ie gis 62 A adore a aa 14 ZOOM O T iva te 14 Import areuments sil desa 24 aid s aa 24 Ud eer e 24 spectrum filer da Bt way br 28 Indexing buttons sarria Eo cla 17 EIBZ Ls n 17 94 PEAK ista rr ea 17 94 ROL 6 ebe e ale Gas 18 94 InSight EE eel as 41 42 64 Wark EE 62 Marky Pes e400 3 050 EE 63 Installing MAESTRO 5 MCB Configuration 5 160 Integration id ess 41 Job commands detailed reference 113 commands quick reference 103 controles
87. and Ex panded Spectrum Views display the data in histogram form This function is duplicated by the accelerators lt F4 gt and lt Alt 6 gt You can also use the toolbar s Detector droplist 82 r E Pick Detector 00011 digiDART 00019 IDM 200 00020 RANDTGX270 Fig 79 Detector Selection List 3 MENU COMMANDS 4 6 3 Logarithmic Logarithmic toggles the vertical scale of the Spectrum display between the logarithmic and linear modes This function is duplicated by Keypad lt gt and the Log Linear Display button on the toolbar 4 6 4 Automatic Automatic switches the Expanded Spectrum View to a linear scale that is automatically adjusted until the largest peak shown is at its maximum height without overflowing the display It also toggles the vertical scale of the spectrum display between the automatic and manual modes If the logarithmic scale was enabled the display is switched to linear This function is duplicated by Keypad lt gt and the Vertical Auto Scale toolbar button 4 6 5 Baseline Zoom When you select Baseline Zoom the baseline of the spectrum displayed in the expanded view is always zero counts In this mode a checkmark is displayed beside the item name on the menu When Baseline Zoom is off no checkmark beside the item name the baseline can be offset to a higher value This is useful to show small peaks on a high background When the baseline is offset the box in the Full Spectrum
88. and to display the dialog shown in Fig 72 Enter the Owner name Then enter a password in the Password field and re enter it in the Verify field the two entries must agree Click on OK The password is not case sensitive that is uppercase and lowercase letters are treated the same e Accessing a locked detector If a Detector is currently locked selecting Lock Unlock will display the Unlock Detector dialog shown in Fig 73 and will display the name of the Owner on the Supplemental Information Line as shown in Fig 74 You must enter the correct password to unlock the Detector If a JOB file or network user attempts to change any Detector settings on the Properties dialog will display the Locked Detector dialog shown in Fig 75 77 MAESTRO v7 Software User s Manual e If you enter the incorrect password in either the Unlock or Locked Detector dialog the dialog will reopen and wait for the correct password If you do not know the password click on Cancel to close the dialog you will still have read only access to the Detector e Removing the password To remove the password lock issue the Lock Unlock command enter the password to unlock it then reissue Lock Unlock completely delete the Owner entry click on OK which will display an Owner name must be supplied then click on Cancel Lock Detector Y Owner Thom P Password PS Cancel Verify Kaal Fig 72 Enter Owner and Passwo
89. ate significantly varying counting rates during the time taken to acquire the spectrum the CORR_ERR ZDT mode should be used The CORR_ERR mode corrects for dead time losses over minuscule time intervals by adding counts to the ZDT spectrum in proportion to the instantaneous ratio of real time to live time Thus the dead time correction can correctly track rapidly changing counting rates The CORR_ERR mode should be used whenever the counting rate may change significantly during the measurement time In addition to the rapidly decaying isotope example above the CORR_ERR mode should be used when monitoring cooling water flow from a nuclear reactor The CORR_ERR mode accommodates brief bursts of high activity in the water flowing past the gamma ray detector Both the corrected and error spectra are stored in the resulting spectrum file 59 MAESTROS v7 Software User s Manual Note that the counts in the ZDT spectrum must be divided by the elapsed REAL time to compute the dead time corrected counting rate It is important to note that the standard deviation in the N py counts in a gamma ray peak in the ZDT spectrum is not y Nzpr Instead the standard deviation is obtained from the Na counts in the same peak ROI in the accompanying error spectrum The standard deviation in this case is JN And the standard deviation in the computed counting rate N Real Time is JN Live Time The NORM_CORR Diagnostic Mode Why is there a NORM_CORR mode
90. ation Problem with File A file input output error encountered while executing a JOB Problem with LOOP The LOOP statement could not be executed properly in a JOB Problem with RECALL The RECALL statement could not be executed in a JOB Problem with REPORT The REPORT function could not be exercised in a JOB Problem with RUN The specified program could not be RUN from a JOB Problem with SAVE The SAVE function could not be executed in a JOB Sample Changer Hardware Failure The sample changer hardware handshake failed in some way usually the result of too much time before SAMPLE READY is obtained There are no stored spectra to view Job Error 20 An attempt was made to execute the LOOP_SPECTRA or VIEW command on a Detector that does not have any stored spectra The WAIT program was not started by MAESTRO Job Error 23 All programs waited for have to be started by MAESTRO Unable to CALL A JOB error resulting from a problem with the CALL function usually because the file does not exist Unable to COMPARE files of different sizes The COMPARE function requires compatible files Unable to open file STRIP aborted The STRIP function is aborted if the file cannot be read 157 MAESTROS v7 Software User s Manual Unable to open file for COMPARE The COMPARE function is aborted if the second spectrum cannot be read Unable to read specified file A JOB error resulting from a problem with the RECALL functio
91. ation from 0 5 to 140 8 Input Polarity These buttons select the preamplifier input signal polarity for the signal from the detector Normally GEM p type detectors have a positive signal and GMX n type have a negative signal Baseline Restore This is used to return the baseline of the pulses to the true zero between incoming pulses This improves the resolution by removing low frequency noise from dc shifts or mains power ac pickup The baseline settings control the time constant of the circuit that 39 MAESTROS v7 Software User s Manual returns the baseline to zero There are three fixed choices Auto Fast and Slow The fast setting 1s used for high count rates the slow for low count rates Auto adjusts the time constant as appropriate for the input count rate The settings Auto Fast or Slow are saved in the DSPEC 50 even when the power is off The time constant can be manually set on the InSight display see the discussion beginning on page 61 You can view the time when the baseline restorer is active on the InSight display as a Mark region see the Marks discussion p 62 In the automatic mode the current value is shown on the InSight sidebar For a low count rate system the value will remain at about 90 Preamplifier Type Choose Transistor Reset or Resistive Feedback preamplifier operation Your choice will depend on the preamplifier supplied with the germanium detector being used Optimize The DSPEC 5
92. be stored in the DSPEC 50 s memory If you change any parameters that affect peak shape you must repeat this training procedure Once the Resolution Enhancer has been trained and its checkbox has been unmarked the Stabilizer tab once again operates on the gain stabilizer that is it no longer adds values to the table of adjustments NOTE The peak selected for the gain stabilizer can be different from the peak used for training the Resolution Enhancer To turn off the Resolution Enhancer mark its checkbox to turn on the learning mode go to the Stabilizer tab and click on the Initialize button for the gain stabilizer This will set the adjustment to zero Now return to the Amplifier PRO tab and unmark the Resolution Enhancer box ADC This tab Fig 43 contains the Gate ZDT Mode Conversion Gain Lower Level Discriminator and Upper Level Discriminator controls In addition the current real time live time and count rate are monitored at the bottom of the dialog Gate This allows you to select a logic gating function With this function Off no gating is per formed that is all detector signals are processed with the function in Coincidence a gating input signal must be present at the proper time for the conversion of the event in fo Properties for DSPEC 50 High Voltage About Status Presets MDA Preset Nuciide Report Amplifier Ampifier2 AmplfierPRO ADC Stabilizer Gate
93. bers that have the ROI set for the active Detector or buffer in a disk file The 119 MAESTROS v7 Software User s Manual contents of the spectrum are not altered by this operation The disk filename in quotation marks can be any valid filename with optional elements as described for the SAVE command above The default extension is ROI The loop count value can be included in the filename by typing three question marks in the text where the loop count is to be inserted The loop count replaces wherever it appears SEND_MESSAGE command Sends MCB hardware commands to the active Detector This can be used to perform any operations of the Detector that are desired The text must be in the syntax expected by the Detector If the response from the Detector does not end with a command accepted message this command will exit with error If you use this command to attempt to send destructive commands to a locked Detector the JOB will fail Use UNLOCK to unlock the Detector before using SEND_MESSAGE and LOCK afterward The following is an example of using this command to set the fine and coarse gain to a total value of 50 the product of the fine 0 5 and coarse 100 gains SET_DETECTOR 1 STOP CLEAR SEND_MESSAGE SET_GAIN_FINE 2048 SEND_MESSAGE SET_GAIN_COARSE 100 SET BUFFER Selects the buffer same as SET DETECTOR 0 SET_DETECTOR lt number gt Selects the active Detector or the buffer The De
94. can be included in any text by typing three question marks in the text where the loop count is to be inserted The loop count replaces wherever it appears EXPORT filename Executes the Export function with the filename specified The remainder of the options are defined on the Export tab under File Settings The filename can include any of the variables defined in Section 6 3 115 MAESTRO v7 Software User s Manual FILL_BUFFER Transfers the active Detector data to the buffer This command has the same function as Copy to Buffer under Acquire IMPORT filename Executes the Import function with the filename specified The remainder of the options are defined on the Import tab under File Settings The filename can include any of the variables defined in Section 6 3 LOAD_LIBRARY filename extension Loads the specified LIB or MDB nuclide library and duplicates the function of Library File under the Services menu The old MAESTRO library format MCA is no longer supported LOCK Pwd Name Locks the current Detector using Pwd as the password If the optional Name parameter is missing the Locked name defaults to Job This password is retained in the JOB file and used with any JOB commands except SEND_MESSAGE so the operator does not need to reenter the password LOOP lt repetitions gt END_LOOP This command pair executes multiple times all the commands be
95. combinations are then saved in the DSPEC 50 so you do not need to optimize Patent number 5 912 825 Patent number 5 821 533 40 3 MENU COMMANDS for each possible rise time Optimization can take from to 10 minutes depending on count rate but typically takes 5 minutes NOTE Be sure to repeat the optimization if you change the flattop width The effect of optimization on the pulse can be seen in the InSight mode on the Amplifier 2 tab Note however that if the settings were close to proper adjustment before starting optimization the pulse shape may not change enough for you to see In this situation you also may not notice a change in the shape of the spectrum peaks The most visible effect of incorrect settings is high or low side peak tailing or poor resolution Amplifier 2 Figure 41 shows the Amplifier 2 SS for DSPEC 50 tab which accesses the advanced shaping controls including the High Voltage About Status Presets MDA Preset Nuclide Report Amplifier Ampifier2 AmpifierPRO ADC Stabilizer InSight Virtual Oscilloscope mode Rise Time Flattop The many choices of Rise Time 120 wenfoso 2 allow you to precisely control the Tit 0 00000 tradeoff between resolution and Pole Zero throughput The value of the rise E Stop time parameter in the DSPEC 50 sar re ST ar D is roughly equivalent to twice the p integration time set on a conven tional analog spectros
96. copy amp lifier Thus a DSPEC 50 value of 12 us corresponds to 6 us in a conventional amplifier Starting with the nominal value of 12 0 you should increase values of the rise time for better resolution for expected lower count rates or when unusually high count rates are anticipated reduce the rise time for higher throughput with somewhat worse resolution Close Fig 41 DSPEC 50 Amplifier 2 Tab The DSPEC 50 Rise Time ranges from 0 8 us to 23 0 us Once the unit has been optimized according to Section 4 2 8 1 you can use any Rise Time without having to re optimize The most recent settings are saved in the DSPEC 50 firmware even when the power is turned off For the more advanced user the InSight mode allows you to directly view all the parameters and adjust them interactively while collecting live data To access the InSight mode go to the InSight section on the Amplifier 2 tab and click on Start The InSight mode is discussed in more detail in Section 4 2 8 5 41 MAESTROS v7 Software User s Manual The Rise Time value is for both the rise and fall times thus changing the rise time has the effect of spreading or narrowing the quasi trapezoid symmetrically The Flattop controls adjust the top of the quasi trapezoid The Width adjusts the extent of the flattop from 0 3 to 2 4 us The Tilt adjustment varies the flatness of this section slightly The Tilt can be positive or negative Choosing a positive valu
97. ctor interface that can display up to eight MCA windows and eight buffer windows at a time or using the classic single window interface MAESTRO v7 uses the GammaVision library editor so you can now create modify and use both original LIB format libraries and Microsoft Access MDB format NuclideNavigator libraries New toolbar buttons and JOB commands support List Mode data streaming in sup ported instruments such as the DSPEC 50 IDM 200 and DSPEC Pro this mode records and stores the pulse value with a time stamp for every pulse generated by the detector MAESTRO can control and display multiple CONNECTIONS MCBs local or networked and any mixture of models the limit depends on system resources Multiple MAESTRO windows can be open at one time displaying Detectors buffers spectrum files from disk and data analyses The larger your monitor or monitor array the more windows you can comfortably view Data can be saved to or retrieved from any number of removable or fixed drives local or networked 1 1 MCA Emulation An MCA in its most basic form is an instrument that sorts and counts events in real time This sorting is based on some characteristic of these events and the events are grouped together into bins for counting purposes called channels The most common type of multichannel analysis and the one which is of greatest interest to nuclear spectroscopists is pulse height analysis PHA PHA events are signal p
98. customer support Visit This product is licensed to IS OBTEC USER Ge Online If you are connected to the Internet SS click on the Visit ORTEC On Line button to browse our website which Copyright 2012 Advanced Measurement Technology Inc All Rights Reserved in addition to our product catalog includes application notes technical papers information on training courses and access to our Global Service Center Fig 37 About MAESTRO 4 2 Acquire The Acquire menu is shown in Fig 38 Access to the various functions depends on whether the a Detector or Start Alt 1 buffer window is currently active For example if a buffer Stop Alt 2 window is active Clear is the only active Detector control Clear Alt 3 and MCB Properties is read only If a Detector window Copy to Buffer Alt 5 is active MCB Properties is interactive The List Mode List Mode Download Spectra and View ZDT Corrected commands De Download Spectra are available only for supported hardware which is listed in ee the discussion for each of these functions View ZDT Corrected F3 MCB Properties NOTE In some cases a Detector option might be disabled because it is disabled for the current Detector while it might still be valid for another Detector in the sys tem or for this Detector under different conditions Fig 38 Acquire Menu 4 2 1 Start This initiates data collection in the selected Detector Any warnings arising
99. dd a nuclide to the library list 1 Locate the nuclide immediately below the desired insertion position and click once to highlight it 135 MAESTRO v7 Software User s Manual 2 Next click on the manual Insert button to open the Edit Library Nuclide dialog The dialog will be blank 3 Fill in the name and half life as well as any other inputs and click on OK 7 2 3 2 Deleting Nuclides from the Library To remove a nuclide from the library click on the nuclide mes then on Cut This will remove the nuclide from the list In o omet addition it will activate the gray Paste button at the bottom of the nuclide list and change its label to include the name i of the cut nuclide This is illustrated for Co in Fig 104 Nuckde Cut Lost 7 2 3 3 Rearranging the Library List SE SE The order of the nuclides in the library is the order in which they are listed on the report Nuclides can be rearranged in the library file list by cutting and pasting them into a different location To move a nuclide to a new position in the list highlight the nuclide to be moved Cut it from the list locate the nuclide immediately below the desired new position and click once on that nuclide to highlight it then click on the Paste button which will be labeled with the name of the Cut nuclide The Cut nuclide will be inserted in the space above the highlighted nuclide Several nuclides can be cut at one time from the list then pasted bac
100. ding more MCBs to your system is fast and easy see the accompanying CONNECTIONS Driver Update Kit Instruction P N 932721 for instructions 1 4 Detector Security MAESTRO allows you to protect your Detectors from destructive access by setting a password with the Lock Unlock Detector command Section 4 4 4 Once a password is set no user or application can start stop clear change presets change ROIs or perform any command that affects the data in the detector if the password is not known however the current spectrum and settings for the locked device can be viewed read only The password is required for any destructive access whether local on a network or via JOB file commands This includes changing instrument ID numbers and descriptions with the MCB Configuration program 1 5 List Mode Support MAESTRO now supports our instruments that operate in List Mode such as the digiBASE DSPEC 50 502 and DSPEC Pro In List Mode spectroscopy data are streamed directly to the computer event by event without the data dead periods associated with the acquire store clea restart cycle of standard spectrum acquisition New commands on the menus and toolbar allow you to switch between PHA and List modes and view all or part of a list mode acquisi tion In addition our automated JOB streams support the new List Mode capabilities NOTE MAESTRO samples the list mode data stream every 250 milliseconds of real time and can display the dat
101. e allowing one or more of the options to be selected at the same time Save File Format A A Integer SPC Data Floating point SPC Data Fig 14 Radio Buttons The ROI Peak and Library indexing buttons on the Status Side bar are useful for rapidly locating ROIs or peaks and for advancing between entries in the library When the last item in either direction is reached the computer beeps and MAESTRO posts a no more entries message on the Supplementary Information Line The indexing buttons are displayed in two different ways depending on whether MAESTRO is in Detector or buffer mode as shown in Fig 16 However they function the same way in both modes In buffer mode the additional features are the ability to insert or delete an ROI with the Ins and Del buttons respectively located between the ROI indexing buttons and to display the peak information for an ROI with the Info button located between the Peak indexing arrows The Library buttons are useful after a peak has been located to move forward or backward through the library to the next closest library entry Each button press advances to the next library entry Print to file Y Print to display Fig 15 Checkboxes l ROI at Peak tal Library g le ROI H Del Peak DE a Library Fig 16 Detector mode top buffer mode bottom 17 MAESTRO v7 Software User s Manual and moves the marker to the corresponding en
102. e Detector hardware on which a particular spectrum was collected Data can also be analyzed directly in the Detector hardware memory as well as stored directly from the Detector to disk This release of MAESTRO allows you to open up to eight Detector windows and eight buffer windows simultaneously MAESTRO also uses the network features of Windows so you can use and control supported ORTEC MCB hardware anywhere on a network See the next section for more information on support for legacy ORTEC instruments in Windows 7 1 2 PC Requirements MAESTRO is designed for use on PCs that run 32 or 64 bit Microsoft Windows 7 or Windows XP Professional SP3 In 32 bit Windows operating systems the MAESTRO program files are installed in the Program Files folder in 64 bit Windows MAESTRO is installed in the Program Files x86 folder 1 3 MCB Support in MAESTRO v7 Your PC s processor and operating system will determine which MCBs instrument to PC interfaces and network protocols can be used For detailed information see the accompanying 2 1 INTRODUCTION CONNECTIONS Driver Update Kit Instruction P N 932721 or consult your ORTEC representative Hardware and network protocol setup for older MCBs are contained in the accompanying ORTEC MCB CONNECTIONS 32 Hardware Property Dialogs Manual p n 931001 hereinafter called the MCB Properties Manual It is supplied either as hardcopy or in the Manuals folder on the installation disk Ad
103. e Display Preferences Fill All Section 4 6 11 1 The Compare spectrum is offset from the starting spectrum and can be moved up and down incrementally with the lt Shift t gt and lt Shift gt accelerators In addition the vertical scale of both spectra can be simultaneously changed with lt gt lt gt Note that the Compare spectrum s ROIs if any were saved with the file are not marked in this mode 33 MAESTRO v7 Software User s Manual Figure 36 is a zoomed in portion of Fig 35 In this illustration the starting spectrum is displayed in color 1 the Compare spectrum is shown in color 2 the starting spectrum s ROIs are O marked in color 3 and the portion of the starting spectrum that exceeds the Compare spectrum is indicated by color 4 These colors called Fore ground Compare ROL and Composite respectively are chosen on the Color Preferences dialog inaia discussed in Section 4 6 11 2 a Fig 36 Spectrum Colors in Compare Mode Press lt Esc gt to leave Compare mode 4 1 8 1 Comparing ZDT Spectra with lt Shift F3 gt The Compare feature also works for MCBs that support the Zero Dead Time ZDT correction which generates two spectra per acquisition and for ZDT spectrum files which store the two spectra You can also compare a ZDT Mode spectrum to a non ZDT spectrum file however note that the ZDT MCB or file must be opened first to enable the View ZDT Corrected command w
104. e marked See also Sections 3 5 3 and 4 5 4 4 8 9 Clear ROI This clears the ROI bits of all channels in the rubber rectangle or all ROI channels contiguous to the channel containing the marker See also Section 4 5 5 4 8 10 Peak Info This displays peak or ROI information based on the current marker position If the Detector is acquiring data the values displayed are continuously updated See Section 4 3 5 89 MAESTROS v7 Software User s Manual 4 8 11 Input Count Rate This enables the display upper left corner of spectrum of the input count rate meter for supported MCBs for instance the DSPEC 50 The input count rate is the total count rate into the input and is higher than the total number of counts in the spectrum divided by the real time It is the count rate used in the dead time calculation 4 8 12 Sum This function sums all of the data channels in 1 the Detector 2 the current ROI or 3 the rubber rectangle See Section 4 3 7 4 8 13 MCB Properties This displays the MCB Properties for the selected Detector as described in Section 4 2 8 90 5 KEYBOARD COMMANDS This chapter describes the MAESTRO keyboard commands The keys described in this section are grouped primarily according to location on the keyboard and secondarily by related function 5 1 Introduction Table 3 provides a quick reference to all of the MAESTRO keyboard and keypad functions These accelerators are also illustrated in Fig
105. e results in a flattop that slopes downward choosing a negative value gives an upward slope Alternatively the optimize feature on the Amplifier tab can set the tilt value automatically This automatic value is normally the best for resolution but it can be changed on this dialog and in the InSight mode to accommodate particular throughput resolution tradeoffs The optimize feature also automatically adjusts the pole zero setting The dead time per pulse is approximately 3 x Rise Time 2 x Flattop Width In the Pole Zero section the Start button performs a pole zero at the specified rise time and other shaping values Unlike the optimize feature it performs a pole zero for only the one rise time The pole zero Stop button aborts the pole zero and is normally not used When you are satisfied with the settings Close the Properties dialog and prepare to acquire data Once data acquisition is underway the advanced user may wish to return to MCB Properties and click on the Insight section s Start button to adjust the shaping parameters interactively with a live waveform showing the actual pulse shape or just to verify that all is well Amplifier PRO This tab Fig 42 contains the controls for the Low Frequency Rejector LFR filter high fre quency Noise Rejection Level Resolution Enhancer and Enhanced Through put Mode To enable a particular feature mark the corresponding checkbox Any or all of these features can be us
106. e spectrum is energy calibrated and the library loaded the system displays the best match from the library within two FWHMs of the peak centroid If there is no match within this range the No Close Library Match message is displayed These functions are duplicated by the Peak indexing buttons on the Status Sidebar 5 2 4 Next Library Entry lt Alt gt lt Alt gt These keys move forward or backward through the nuclide library to the next closest library entry Each button press advances to the next library entry and moves the marker to the corresponding energy Also instead of indexing from a previously identified peak the marker can be positioned anywhere in the spectrum and these keys used to locate the entries closest in energy to that point If a warning beep sounds it means that all library entries have been exhausted in that direction or that the spectrum is not properly calibrated for reaching the energy with the marker In any case if an appropriate peak is available at the location of the marker data on the peak activity are displayed on the Marker Information Line These functions are duplicated by the Library indexing buttons on the Status Sidebar 5 2 5 First Last Channel lt Home gt lt End gt These keys move the marker to the first or last channel of the spectrum 94 5 KEYBOARD COMMANDS 5 2 6 Jump Sixteenth Screen Width lt PageDown gt lt PageUp gt lt PageDown gt and lt PageUp gt jump the ma
107. ed at one time however the LFR and Enhanced Throughput modes must be set up before the Resolution Enhancer is configured as discussed below Note that once an MCB is trained for the Resolution Enhancer see the following section it must be retrained if any settings are changed that can affect peak shape or position e g bias gain rise time flattop pole zero Low Frequency Rejector This filter is designed to minimize low frequency noise and is discussed in detail in the hardware manual You cannot optimize or pole zero the DSPEC 50 while in LFR mode The Optimize feature must be used with the LFR filter off Subsequent measurements can then be taken with the LFR filter on Also LFR mode affects the available range of protection times in Enhanced Throughput Mode as discussed in the next paragraph 42 Noise Rejection Level This setting adjusts a filter that rejects high frequency noise from the ambient environment It ranges from 0 to 4 The default setting 2 will be suitable for most applications If the system is exhibiting high dead time with no source on the detector the noise may be in duced by nearby RF interference or a result of a ground loop If possible resolve the source of the noise by physical means such as common grounding between 3 MENU COMMANDS a Properties for DSPEC 50 High Voltage About Status Presets MDA Preset Nuclide Report Amplifier Amplfier2 Amplfie
108. ediately Starts up with an open buffer window rather than searching for a valid Detector Certain defaults apply if any one or more of these arguments is omitted The initial Detector list is named M32MCA CFG The nuclide library is assumed to be LIB lib by default or the last library used And no JOB is automatically executed unless the FILE JOB argument is included 142 APPENDIX B MAESTRO FILE FORMATS This appendix briefly describes the nature of the principal MAESTRO data files See the File Structures Manual for complete descriptions of the formats for these files including SPC and CHN files Section B 2 includes two program examples that show how to access the CHN and ROI files The LIS file format is instrument specific see the hardware manual for your MCB The SPE file format is based on the IAEA ASCII file format recommendation for gamma spectrometers see the File Structures Manual for details B 1 MAESTRO File Types B 1 1 Detector Files CFG ConFiGuration System Detector configuration information used by MCA32 EXE binary format CXT ConteXT For each Detector Device a context file is automatically created to remember all extra information required for analyses calibration and other calculations binary format B 1 2 Spectrum Files CHN CHaNnels MAESTRO style spectral data file binary format SPC SPeCtrum Spectrum with full analysis settings calibration description
109. een pulse height and channel number slope of the curve Changes in either the intercept or gain can affect the positions of all the peaks in the spectrum When used with the zero stabilizer both the zero intercept and the gain slope will be monitored to keep all the peaks in the spectrum stabilized The zero stabilization and gain stabilization are separate functions but both will affect the position of the peaks in the spectrum The stabilization operates by keeping a peak centered in an ROI you have defined The ROI should be made symmetrically about the center of a peak with reasonably good count rate in the higher channels of the spectrum The ROI should be about twice the FWHM of the peak If the region is too large counts not in the peak will have an effect on the stabilization Before setting either stabilization peak the coarse and fine gains should be set to the desired values and optimization or pole zero performed 56 3 MENU COMMANDS 4 2 8 4 ZDT Zero Dead Time Mode An extended live time clock increases the collection time real time of the acquisition to correct for input pulse train losses incurred during acquisition due to system dead time This corrected time value known as the live time is then used to determine the net peak count rates necessary to determine nuclide activities As an example consider the case where the spectrometry amplifier and ADC are 60 dead during the acquisition the elapsed real time wil
110. el StartChannel 1 6 Uncertainty in percent is calculated as follows GrossCounts Background RONG Uncertainty De 100 NetCounts Peak is the position of the maximum count and is computed with the following equation Peak MaximumROIChan EnergySlope EnergyIntercept 55 MAESTRO v7 Software User s Manual MaximumROIChan is the channel in the ROI with the most counts If there are no data the center channel of the ROI is used EnergySlope and Energylntercept are the energy calibration values as entered on the digiDART LF keypad or by software If the values are not present the result is given in channels 4 2 8 3 Gain and Zero Stabilization The gain stabilizer requires a peak in the spectrum to monitor the changes in the gain of the system amplifier The gain stabilizer controls the amplification factor of a separate amplifier so that the peak will be maintained in its original position The zero stabilizer enables you to control the zero level or offset stabilizer The zero level stabilizer uses a peak in the spectrum to monitor the changes in the zero level of the system amplifier The zero stabilizer controls the offset bias level so the peak will be maintained in its original position For both functions the input pulse height to channel number relationship is Channel number Intercept Gain pulse height where Intercept The channel number of the zero height input pulse Gain The relation betw
111. equired Note that if your PC does not already have Adobe Reader installed the MAESTRO wizard must install it before the spectroscopy application is installed In 32 bit Windows operating systems the MAESTRO program files are installed in the Program Files folder in 64 bit Windows MAESTRO is installed in the Program Files x86 folder 2 3 Step 3 Running MCB Configuration to Establish Communication With Your ORTEC MCBs 1 If you have purchased new ORTEC spectroscopy hardware connect it and power it on according to its accompanying hardware manual 2 Connect and power on all local and network ORTEC instruments that you wish to use as well as their associated PCs Otherwise the MCB Configuration program will not detect them during installation Any instruments not detected can be configured at a later time 3 To start the software enter mcb in the search programs and files box then click on the MCB Configuration search result or open the Windows Start menu and click MAESTRO then MCB Configuration The MCB Configuration program will locate all of the powered The first time a particular MCB model is connected a found new hardware wizard will start up Choose not to search the internet for a driver option then choose to automatically search for the driver MAESTRO v7 Software User s Manual on ORTEC Detectors on the local PC and the network and display the list of instruments found the Master Instru
112. er button on the toolbar 4 6 9 Full View This function sets the Expanded Spectrum View to the maximum number of channels in the spectrum the ADC conversion gain 4 6 10 Isotope Markers The isotope markers can be used in energy calibrated spectra to locate other gamma rays of the same nuclide from the library when any one of the gamma rays from that nuclide is selected In this way you can easily see if the selected nuclide is present by comparing the spectrum peaks with the displayed markers The marker is a solid color rectangle placed at the energy of the gamma ray with the nuclide name shown above the top of the rectangle Fig 81 The markers are shown in both the full and expanded views Fig 82 The base of the rectangle is positioned at the level of the background for the peak The amplitude of the marker for the selected peak is normally proportional to the peak area However the amplitude can be changed by placing the mouse in the rectangle where it will become a double sided arrow While the double arrow is displayed click and hold the left mouse button and move the pointer higher or lower on the y axis to make the rectangle larger or smaller The amplitude of the marker for the other peaks is proportional to the amplitude of the first peak and the yield branching ratio As the amplitude of the peak is changed with the mouse all the other rectangles will change proportionally 1 004 73 kev 80 Cnts Fig 81 Is
113. ergy If a library file has not been loaded or the Detector is not calibrated these buttons are disabled Hint Instead of using the Peak buttons to index from a previously identified peak position the marker anywhere in the spectrum and click on the Library buttons to locate the entries closest in energy to that point If a warning beep sounds it means that all library entries have been exhausted in that direction or that the spectrum is not calibrated In any case if an appropriate peak is available at the location of the marker data on the peak are displayed on the Marker Information Line at the bottom of the screen The ROI and Peak indexing buttons are duplicated by lt Shift gt lt Shift gt gt and lt Ctrl gt lt Ctrl gt gt respectively The Library buttons are duplicated by lt Alt gt lt Alt gt gt The Del button function is duplicated by the lt Delete gt key and Clear ROI on the menus and toolbar The Ins button has the same function as the lt Insert gt key and Mark ROI on the menus and toolbar The Info button duplicates the Calculate Peak Info command Peak Info on the right mouse button menu and double clicking in the ROI 3 7 Opening Files with Drag and Drop MAESTRO lets you open ORTEC spectrum SPC AN1 CHN library LIB and region of interest ROI files by dragging and dropping them from Windows Explorer into the MAESTRO window A spectrum file opens in a buffer window a library file is
114. es menu hop ot ty Sek eens di ee 74 Settings CUI eucariotas ad 65 I FIORIRE RIACE PE VS 21 Shaping eh cnt end Att le lo ital i 62 SMAR TEL detector isolato 48 SMOG erh dreet d ee 73 SPC file float ne POMC s 65 Spo ae ai alano 21 IEDER lie aaa 21 Spectrum EE 13 CODY tO TEE EE 13 MAESTRO v7 Software User s Manual how to read data files 143 AA A 13 Sa ia a dea ee ia gcc ia 13 start acq isitlon etc gare 13 stop acquisition usd eee ays 13 Spectrum Aled ent ada aa 10 Spectrum translation 138 Start acquisition xr doors ee 13 35 88 State of health SOH 48 EI Ee EE 12 Stop acquisition de i 13 36 88 SIND srl hss wan ee 73 SUM sega A canter ees 72 90 Supplementary Information Line 12 Throughput ssia Pose Auch eee heey 41 42 62 64 Time CONSE iii ce id 39 Wile EE 9 EOL rs on ados 9 d Eeer e EEN 40 TRANSET program sd das 138 command line x tai ees 138 Uncertainty presets eebe 50 Undo Zoo Minis oda 89 Upper level discriminator ULD 46 Vertical Auto Scale 14 83 Vertical Scale cutis eet geed 95 96 eecht ire aeg 62 EE 14 83 logarithme eet Ge debated eher 14 83 Window Te Ae Baier 87 WINPLO VS 265 4 a lado del 127 ZDT mode usadas ate bs 46 57 choosing a ZDT mode 59 table of available modes 59 View ZDT spectrum aserto eau en 37 zero dead time see ZDT mode 46 Zero
115. ever the command is included in the repertoire for backward compatibility with legacy MAESTRO jobs No other action is performed by this command SET_PHA Switches the currently selected Detector from list mode to PHA mode SET_PRESET_CLEAR This command clears the presets for the active Detector Clearing ensures that unwanted presets are not used by the Detector when the Detector is started Presets can only be changed when an MCB is not counting The Detector should be selected by the SET_DETECTOR commands before the SET_PRESET_CLEAR command is issued as in the following SET_DETECTOR 1 STOP SET_PRESET_CLEAR START SET_PRESET_COUNT lt counts gt Sets the ROI peak count preset for the active Detector The preset is set to the entered value With this preset condition the Detector stops counting when any ROI channel s content reaches this value If no ROIs are marked in the Detector that Detector never meets this condition This command has the same function as the ROI Peak field on the Presets tab under Acquire MCB Properties refer to Section 4 2 8 for additional information The JOB processor expects one or more numerals as the argument to this command entered with or without quotation marks e g you can enter the numerals 1000 or the string 1000 The JOB processor will also accept the loop counter as an argument to the function as long as it is set in quotation marks For example you could use the loop counter to col
116. f 1000 seconds live time These are SET_DETECTOR 1 SET_PRESET_CLEAR SET_PRESET_LIVE 1000 CLEAR Note that all the presets were cleared before setting the live time preset This is to ensure that no previous presets left over from other users will interfere with this analysis Now start the acquisition and wait for completion of the live time START WAIT During this time the display manipulation keys are active so that the spectrum can be studied while collection is taking place Now move the spectrum from the Detector to the MAESTRO buffer Select the buffer for the computational step FILL_BUFFER SET_DETECTOR 0 In this step the nuclide peak of interest is being marked by reading in an ROI file This ROI file has been previously defined by looking at the spectrum and marking the peak or the region around the peak This ROI data is saved on the disk under the name DECAYPK ROI This JOB file will work on different peaks or nuclides just by changing the ROI file RECALL_ROI DECAYPK ROI The peak areas of the marked peak or peaks is printed on the printer by this command REPORT PRN 109 MAESTROS v7 Software User s Manual This gives a list of the peak areas and count rates for the marked peak If the library LIB MCB has a peak near this energy then the peak identity will also be printed The set of instructions as written so far will only collect and report once There are two ways to make the process
117. fer can have separate calibration values and units Once a unit is calibrated all CONNECTIONS programs on all PCs in the network use the same calibration 66 3 MENU COMMANDS Calibration internally maintains a table of the entered points As each new point is entered a notation at the bottom of the spectrum window is displayed to indicate how many points have been entered in the table The table is reset to zero entries whenever 1 you click on the Destroy Calibration button or 2 another window is selected in which case only the computed quadratic calibration coefficients are retained for the currently active display NOTE With this latter case in mind you should be careful to perform the calibration in the Detector or the buffer with an uninterrupted series of points before switching to the other display otherwise the table will be cleared Terminating and restarting the application will also clear the table When recalibrating a previously calibrated spectrum such as after resetting the table as described in case 2 above the old calibration is retained until after the second new point has been entered This facilitates recalibration since the previous calibration values can simply be adjusted rather than entered from scratch for the first two points Of course if you want a complete new recalibration you can click on the Destroy Calibration button 4 3 2 2 How to Calibrate The calibration is done by first marking we
118. ffer to restore from There is no data in the buffer to use No close library match The REPORT function could not obtain a library entry close enough the located peak No File Name A file function was requested without specifying the filename adequately No more peaks or can t reach A peak search was attempted in a direction where no more can be found No peaks found The peak search function could not find any valid peaks in the spectrum No ROI There To Clear The ROI Clear function lt Delete gt requires at least one channel at the marker with the ROI bit set Not Allowed During Acquisition An execution error micro 135 arising from the Detector indicating that the Detector command is not allowed while acquisition is in progress Not Allowed During Current Mode An execution error arising from the Detector micro 136 indicating that the Detector command attempted is not allowed in the current mode of operation Not Allowed while Job running An attempt was made to execute a function on a Detector while a JOB was running on that Detector 155 MAESTROS v7 Software User s Manual Not enough memory STRIP aborted The STRIP function temporarily allocates enough memory to read the file but the allocation failed in this case probably due to insufficient available memory in the system The STRIP function is discontinued Not enough memory for COMPARE The Compare mode could not be executed due to insufficient
119. file Chavackee Mactos selected with the File Export command is located e g c user spectrum e Program Directory This is the directory for the conversion program It is shown in the first entry of this dialog e MAESTRO Directory This is the directory where the MAESTRO program is stored By default this is C Program Files MAESTRO e Current Directory This is the current default directory for Windows Run Options These three radio buttons Minimized Maximized and Normal Window are used to select the window for the program If the program does not have any user dialogs any option can be selected If the program needs user inputs Normal Window should be selected 4 1 1 3 Import Click on the Import tab to display the dialog shown in Fig 22 The program to be executed and the default file extension when the Import function is selected can then be specified Select any program that can accept the spectrum filename on the command line Use the Browse button to automatically select the complete proper path for the program Arguments The arguments to the program can be specified as directly entered character strings or you can select from the list of macros shown in Fig 23 The list is displayed by clicking on the arrow button to the right of the Arguments field The entries macros or direct must be separated by spaces to be read as separate arguments The arguments on this menu are described in Section 4 1
120. from the executing JOB file This is JOB Error 1 Job Error A generic error message indicating that an error was encountered while executing a JOB file Usually some explanatory phrase is given Job waiting for end of acquisition The JOB is waiting for a Detector to stop counting Job waiting for completion of program The JOB is waiting for the stated program to end Library requires separate This is Windows Error 6 Library too large to load An attempt was made to use a large library for the working library Use the Nuclide Library Editor program MAESTRO 32 Nuclide Library Editor see Section 7 2 to make a smaller working library A large library can be used as the master library in the edit function to create a working library MCBCIO error This error indicates a software problem Must choose separated peaks This error arises when a calibration is attempted using two identical or too closely positioned peaks Must have a value greater than zero The input value must be positive and non zero Must select 92X type Detector This error results from an attempt to perform a function available only for 92X type Detectors 154 APPENDIX C ERROR MESSAGES Must select OCTETE type Detector i This error results from an attempt to perform a function available only for OCTETE type Detectors Need an ROI at the desired peak location The Stabilizer function requires a valid ROI at the desired peak No bu
121. g 39 Comparison of Uncertainty and ZDT Spectra for the Same Data Acquisition Showing Labels in Full Spectrum View 4 2 8 MCB Properties CONNECTIONS applications use a uniform dialog for data acquisition setup accessed with the Acquire MCB Properties command The property pages for the DSPEC 50 are described here To see the Properties dialog for other CONNECTIONS MCBs refer their respective hardware manuals Depending on the currently selected Detector the Properties dialog displays several tabs of hardware controls including ADC setup parameters acquisition presets high voltage controls amplifier gain adjustments gain and zero stabilizers pole zero and other shaping controls access to the InSight Virtual Oscilloscope digital noise suppression filters and radionuclide detection reports In addition some MCBs monitor conditions such as detector temperature external input status alpha chamber pressure charge remaining on batteries and the number of spectra collected in remote mode these are reported to a Status tab Simply move from tab to tab and set your hardware parameters then click on Close The Properties dialogs for legacy hardware can be found in the MCB Properties Manual 38 3 MENU COMMANDS Note that as you enter characters in the data entry fields the characters will be underlined until you move to another field or until 5 seconds have elapsed without data entry As long as the entry is underlined
122. gh very soon after the CHANGE SAMPLE signal is set 1 e the normal state of the SAMPLE READY is low it is expected to go high immediately after the CHANGE SAMPLE condition is set and remain high while the sample changer is moving and returns to low when the sample changer is at its new position it might be necessary to use the SEND_MESSAGE command to send a SET_OUTPUT_HIGH command then pause with WAIT or some other time consuming command and then send the CHANGE_SAMPLE command The following example demonstrates this 114 6 JOB FILES SET_DETECTOR 1 LOOP 5 CLEAR START WAIT FILL BUFFER SEND_MESSAGE SET_OUTPUT_HIGH SET_Detector O SAVE MONTE CHN SET_DETECTOR 1 CHANGE_SAMPLE END_LOOP CLEAR Clears erases the spectral data real time and live time for the selected Detector The presets are not changed This command has the same function as the Clear function under the Acquire menu The command would logically be preceded by the SET_DETECTOR commands as follows SET_DETECTOR 1 CLEAR CLOSEBUFFERS Closes all open buffer windows CLOSEMCBS Closes all open Detector windows DESCRIBE_SAMPLE description Accepts a 63 character description of the sample being analyzed This description is saved with the spectrum using the SAVE command function and is included in the REPORT printout This performs the same function as the Sample Description function under the Services menu The loop count value
123. ground as follows age SUI A gt SE ZS h 1 1 20 The uncertainty in the net area is the square root of the sum of the squares of the uncertainty in the adjusted gross area and the weighted error of the adjusted background The background uncertainty is weighted by the ratio of the adjusted peak width to the number of channels used to calculate the adjusted background Therefore net peak area uncertainty is given by ee a Abed aan SS 2n h 1 1 Q1 where Aag the adjusted gross area A the net area B the background area l the ROI low limit h the ROI high limit n the number of background points 71 MAESTRO v7 Software User s Manual The counting activity cA is calculated as 100 0 Net Counts cA 22 Percent Live Time where Percent Gammas per 100 disintegrations from library list Net Counts Net counts in the peak Live Time Live time in seconds 4 3 6 Input Count Rate This command is supported by most newer ORTEC Input Count Frate 244 cps MCBs and disabled for unsupported units and displays or hides the input count rate indicator Fig 62 in the upper Fig 62 Input Count Rate Display in Expanded Spectrum left corner of the spectrum window this is the input count ui rate not the number of processed pulses Note that if the full spectrum view is positioned in the same corner it can obscure the Input Count Rate box This command is also on the right mouse
124. gt in the order that the Detectors are defined in the Detector pick list see Section 4 6 1 The selected Detector name or the buffer is shown on the toolbar These keys duplicate the function of the Detector pick list on the toolbar and the Detector dialog under the Display menu However you should be aware of which Detector numbers are available when using the function keys An error message box will appear if the selected Detector is invalid In systems with more than 12 Detectors use Display Detector or the Detector droplist on the toolbar 5 5 Keypad Keys 5 5 1 Log Linear Keypad lt gt Keypad lt gt toggles the active spectrum window between logarithmic and linear vertical display This is duplicated by the Log toolbar button The vertical scale can be controlled with the Zoom In Zoom Out toolbar buttons Keypad lt gt lt gt the lt 1 gt and lt l gt keys and lt F7 F8 gt 99 MAESTRO v7 Software User s Manual 5 5 2 Auto Manual Keypad lt gt Keypad lt gt switches the spectrum window between automatic and manual vertical full scale see the discussion in Section 4 6 4 This is duplicated by the Vertical Auto Scale button on the toolbar 5 5 3 Center Keypad lt 5 gt Keypad lt 5 gt forces the marker to the center of the screen by shifting the spectrum without moving the marker from its current channel This is duplicated by the Center button on the toolbar For more information see Section 4
125. he center of an ROI you wish to mark or unmark a portion of the spectrum to be summed or a peak for which you want detailed information Release the mouse button to anchor the ending corner of the rectangle Once the area of interest is marked select the applicable command from the toolbar menus right mouse button menu Status Sidebar or keyboard 3 5 4 Resizing and Moving the Full Spectrum View 16 Resizing Roll the mouse pointer over the side edge bottom edge or corner of the window until the pointer changes to a double sided arrow see Fig 13 Click and drag the edge of the window until it is the size you want then release the mouse button es ROI Display del LOG tes Al pleje Buffer Marker 310 uncal 25 863 Cnts Fig 12 The Rubber Fig 13 Two Sided Pointer for Sizing Rectangle s Crosshair Full Spectrum View and Four Sided Pointer for Moving Window 3 DISPLAY FEATURES e Moving Roll the mouse pointer onto the top edge of the window until the pointer changes to a four sided arrow see Fig 13 Click and drag the window to its new location and release the mouse button 3 6 Buttons and Boxes This section describes MAESTRO s radio buttons indexing buttons and checkboxes To activate a button or box just click on it Radio buttons Fig 14 appear on many MAESTRO dialogs and allow only one of the choices to be selected Checkboxes Fig 15 are another common featur
126. he Detector Do you want to save buffer A function that would destroy the buffer such as COPY or EXIT queries you unless the buffer has not been modified since last being saved DOS Application The Windows Error 13 was detected An attempt was made to run a DOS application in Windows Error modifying ROI on this Detector The ROI cannot be modified on locked Detectors or on Detectors that are collecting data Error opening file If trying to write a file this would indicate a disk controller problem such as a full disk If trying to read a file this would indicate that the filename specified could not be found Error reading file STRIP aborted Could not read the file requested for stripping Error reading file File read error is usually a result of damaged media Error writing file File write error is usually a result of damaged media or full disk EXE for an earlier version of Windows The Windows Error 15 was detected 151 MAESTRO v7 Software User s Manual Failure obtaining ROI or Peak A function that requires a defined ROI or peak in the case of the Calibration function when the Marker is not placed in a channel with an ROI bit set and if a peak is not very close by Failure of Detector function This error arises from a JOB that encounters an error when trying to access an Detector File already exists If the file output function requested would write a file with the same name as another fi
127. he relation between channel number and pulse height is not fixed The horizontal scale extends from 16 to 256 channels The display is expanded around the marker position which means that in some cases the peak will disappear from the display when it is expanded The display can be switched from the current MCB to another Detector or the buffer The other Detector will be shown in its most recent mode PHA or InSight The buffer will always be shown in PHA mode When you return to the current MCB the display will return to the InSight mode This also holds true if you exit MAESTRO while in InSight mode on next startup this MCB will still be in InSight mode The display can include a Mark to indicate one of the other signals shown lt none gt in Fig 52 The Mark is a solid color region displayed similarly to that of an 1 E PileU pReject ROI in the spectrum This Mark can be used to set the timing for the gate NegBLDisc pulse It can also be used to set the shaping times and flattop parameters to get e the best performance For example suppose you need to obtain the best Busy resolution at the highest throughput possible By viewing the pulses and the Srl pileup reject marker the rise time can be increased or decreased to obtain a Fig 52 Mark minimum of pileup reject pulses List 62 Mark Types 3 MENU COMMANDS For the Mark choose either points or filled to the zero line display This is contro
128. he same methods as the Peak Info calculation Section 4 3 5 so the Nuclide Report display is the same as the Peak Info display on the selected peak in the spectra stored in the PC The calculated value is computed by multiplying the net peak count rate by a user defined constant If the constant includes the efficiency and branching ratio the displayed value is the activity You enter the nuclide label and the activity units The report format and calculations are discussed in the next section fo Properties for DSPEC 50 Amplifier Amplifier2 AmpifierPRO ADC Stabilizer High Voltage About Status Presets MDA Preset Nuclide Report Low High Factor Update Delete Library Report Nuclide Eu 154 Nuclide Eu 154 Factor 1 0000E 000 Low ROI 318 Units Energy 12307 y High ROI 343 Select from Lib Fig 50 Nuclide Report Tab IMPORTANT The entries you make on this screen are saved in the MCB memory and are not dynamically calculated If you change the energy calibration 1 e if the peak locations shift the Nuclide Report may no longer be valid Add New You can add Nuclide Peaks to the report manually or by selecting the peaks from the current working library The spectrum must be energy calibrated to use the library method e Defining Peaks Manually To manually define peaks enter the Nuclide name ROI Low start and High end channels multiplicat
129. he stripped areas and might not represent the true uncertainty 4 4 Services The Services menu Fig 65 contains several functions and utilities Job Control Library r 4 4 1 Job Control Sample Description Most of the functions under the various MAESTRO menus geed EE can be automated by writing a JOB which consists of one don epee or more commands written in ASCII text see Chapter 6 for Fig 65 The Services an in depth discussion JOBs allow you to easily perform Menu repetitive tasks and or define initial conditions at Detector startup These files are given a filename extension of JOB To start a JOB or edit a JOB file select Services Job Control to display the dialog shown in Fig 66 To see the list of commands in a particular JOB file mark the Show Contents checkbox then click to highlight the desired filename To run a JOB select it and click on Open Once a JOB is started most menu functions will be disabled gray to prevent interference with JOB as it runs The JOB filename will be displayed on the Title Bar If a JOB is running and you try to start another one the dialog shown in Fig 67 will show the name of the current JOB and ask if you wish to Terminate or continue running the JOB click on Close or press lt Esc gt 4 4 1 1 Editing a JOB File You can edit a JOB file from the Run JOB File dialog or by opening the file in Notepad To edit in the Run JOB File dialog 74 3 MENU COMMAND
130. hich allows you to toggle between the CORR and ERR spectra in the file the shortcut key is lt F3 gt Then use the Compare command to open the non ZDT file When you issue the Compare command and select another ZDT spectrum file that file opens in the current mode of the starting spectrum so you are viewing ERR ERR or ZDT ZDT Use View ZDT Corrected to toggle both spectra in unison between ERR ERR and ZDT ZDT To hold the starting spectrum in the current view mode and switch the Compare spectrum to the opposite view use lt Shift F3 gt View ZDT Corrected then allows you to switch between the ERR ZDT and ZDT ERR comparisons It is also possible to do this with a non ZDT Compare spectrum in which case lt Shift F3 gt toggles between the single live time corrected spectrum and an empty spectrum baseline 4 1 9 Exit This exits MAESTRO and returns to Windows If the buffer contains a spectrum that has not been saved a warning message is displayed Any JOBs are terminated All Detectors continue acquisition Patent number 6 327 549 See Sections 4 2 8 4 and 4 2 7 for explanations of ZDT mode and the View ZDT Corrected command respectively 34 3 MENU COMMANDS 4 1 10 About MAESTRO Figure 37 shows the About dialog About MAESTRO for Windows for MAESTRO It provides software MAESTRO for Windows version information that will be useful mee es l UMCBI Kernel Version 8 01 Connections 32 Version 8 01 should you need
131. ient memory for buffer The memory buffer could not be created due to insufficient available memory in the system Sometimes this error can be eliminated by attempting the buffer operation again but this is not recommended due to the marginal state of the system which might result in other errors Invalid EXE file The requested file was invalid This is Windows Error 11 Invalid command or missing argument An incorrect command was entered in a JOB file This is JOB Error 4 Invalid Detector input selection The specified Detector number is incorrect That is there is no corresponding Detector for that number Invalid File Format A function to recall a file could not obtain data in the proper format Invalid library file An attempt was made to load a nuclide library from a file that was not in the proper format Invalid Start Record No valid Start Record file could be found to provide the start date time for the Detector Invalid loop count An incorrect loop count was entered in a JOB file This is JOB Error 7 Invalid start date time The start date and time returned from the MCB hardware was incorrect This might be due to a loss of battery power in the MCB 153 MAESTROS v7 Software User s Manual Invalid start record The start record for this Detector contained invalid information Job Aborted or Premature EOF A JOB was aborted by the user or an end of file was encountered while trying to obtain a command
132. ifferent order Cut peaks remain queued up for pasting last one first Each relocated nuclide will retain its energy and counts sec values but will be assigned a Rank number according to its new position Click on the peak just below the desired insertion point in the peak list then click on Paste 7 2 3 7 Saving or Canceling Changes and Closing To save this modified library file click on the control menu then Save Library As Either use the current filename which will overwrite the previous values or assign a new filename then click on Save The Library Editor will assign the default LIB extension To save this as an MDB format library select the MDB format from the File Type droplist at the bottom of the dialog To exit the edit session click on the control menu then Close 137 MAESTRO v7 Software User s Manual To abandon any changes and restore the library file to its condition before editing click on the control menu then Close A dialog will open asking if the changes should be saved select No 7 2 4 Print Library This command opens a standard Windows print dialog that allows you to print out the library contents from the Services menu The dialog will prompt you to choose whether the printout is ordered by Nuclide or by Energy and whether the output will go to a Printer or to File If the output is directed to a printer you can click on Setup to display the standard printer selection and setup dialog see Sec
133. ile 4 1 7 2 Print to display 4 1 8 e 4 1 8 1 Comparing ZDT Spectra with lt A A re ree 4 1 10 About MAESTRO 4 2 Acquire Toot EE BD SOD facts octets allan Ramee nee E 42 5 e EEN 4 2 4 Copy to Buffer AN A EE 4 2 6 Download Spectra 4 2 7 View ZDT Corrected 4 2 8 MCB Properties 4 2 8 1 DSPEC 50 Amplifier ge Amplifier EE EE Amplifier PRO PC EE Stabilizer at High Voltage About a ds STATUS tdt pastore PIES ener ewes MDA Preset Nuclide Report Tab NNN WN AHA DN D GO HAHAHAHA AAA WY vw vU 00 100 Uu U D WWWWWW WWW WWW WW Lu Lui VD 0 on J Oh Oh Oh Ch Ohn nh FS FW O LD Vi SS SS E U ra 0 GO GO JA Ch LA ra TABLE OF CONTENTS 4 2 8 2 Nuchde Report Calculations ass cox ee ies 54 4 2 8 3 Gain and Zero Stabilization 0 0 0 0 cc ccc ccc ccc ce eee tenes 56 4 2 8 4 ZDT Zero Dead Time Mode 57 Choosing a ZDT Mode ri ee 59 The NORM_CORR Diagnostic Mode 60 More uge ur Le REENEN 60 4 2 8 5 InSight Mode rra ME ne keene ae mene ke che ande 61 InSight Mode Controls dee HERE ee 62 Mark TY Res xs tute pet i ERA na 63 4 2 8 6 Setting the Rise Time in Digital MChR s LL 64 E EEN 65 A SEIS aa a LAO AA e a 65 A Sa
134. ile can be selected but it must contain the same number of channels as the buffer fe ZE Strip Spectrum File Look in Ji User m e Edy Name Date modified Type hot 7 1 20127 14PM Filefoldel Baus spe 5 8 201212 45PM ORTEC SJ Bu 200 MAE v7 Cx v8 Co60 Cs134 Spc 6 28 2012 5 21PM ORTECS Bu 2 MAE v7 Cx v8 Co60 Cs134_2 LIST MODE 1 Spc 6 28 2012 3 59 PM ORTEC S Bu on MAE v7 Cx v8 Co60 Cs134_2 LIST MODE 2 Spc 6 28 2012 4 04 PM ORTEC S Bu on MAE v7 Cx v8 Co60 Cs134_2 Spc 6 28 2012 11 52 AM ORTEC Si Bu zou MAE v7 Cx v8 Co60 Cs134_120701_1 Spc 7 1 2012 7 13 PM ORTEC Si W lt 14 0179 6 1 DRA netec a 4 w p wm PT Files of type Integer SPC gt Cancel Stripping Factor Factor by which file data will be multiplied before being subtracted from spectrum in memory Iw Use Ratio of Live Times Fig 64 Choose Strip Spectrum 73 MAESTRO v7 Software User s Manual The strip factor is a real number that is multiplied channel by channel by the disk spectrum before being subtracted from the buffer If the Use Ratio of Live Times box is marked the strip factor 1s calculated as the ratio of the live time of the buffer spectrum divided by the live time of the disk spectrum Unmarking the Use Ratio box allows you to enter a factor which can be negative in which case the spectra are added NOTE The live time and real time are not changed by any strip operation Also the peak uncertainty does not include t
135. ing the arrow keys although you might prefer EEN to use the keys for specific motions such as moving the marker one SE channel at a time Undo Zoom In Mark ROI 3 5 2 The Right Mouse Button Menu SS Clear ROI Figure 11 shows the right mouse button context menu To open Deak ibe it position the mouse pointer in the spectrum display click the Input Count Rate right mouse button then use the left mouse button to select from Sen its list of commands Not all of the commands are available at all MCB Properties times depending on the spectrum displayed and whether the Fig 11 Right rubber rectangle is active Except for Undo Zoom In all of these functions are on the toolbar and or the menus See Section 4 8 for more information on the commands Mouse Button Menu 15 MAESTRO v7 Software User s Manual 3 5 3 Using the Rubber Rectangle The rubber rectangle is used for selecting a particular area of interest within a spectrum It can be used in conjunction with the toolbar and right mouse button menu commands for many functions To draw a rubber rectangle Click and hold the left mouse button this anchors the starting corner of the rectangle Drag the mouse diagonally across the area of interest As you drag the mouse will be drawing a reverse color rectangle bisected by the marker line to form a crosshair Fig 12 This makes it easy to select the center channel in the area of interest for instance t
136. ional parameter is supplied e The activity calculated using the net area the live time and the factor from the library 4 1 7 1 Printing to a Printer and or File To print an ROI Report leave both the Print to file and Print to display boxes unmarked Click on either the Paragraph or Column radio button to select an output format Make sure the correct printer is listed in the Printer Name field to select another printer click on the Name field and choose from the droplist Click on OK To write an ROI Report to an ASCII file follow the same steps but click on the Print to file box to mark it Then click on OK This will open the Report File dialog a standard Windows file open dialog Enter the desired File name and click on Open This file can then be viewed and printed from ASCII text handlers such as Windows Notepad The Paragraph and Column style reports are shown in Figs 31 and 32 respectively 4 1 7 2 Print to display Figures 33 and 34 show the ROI Report displayed on screen in Paragraph and Column style respectively Remember that this report includes only the ROIs currently displayed in the Expanded Spectrum View To close the report display window click on its Close button x or click on the control icon on the left of the title bar and select Close from the drop down menu 30 3 MENU COMMANDS E 9 120628 Cs134 Co60 on endcap IDM 200 Rpt Notepad Detector 19 ACQ 27 Jun 2012 at 19 12 55 RT 5753
137. its a fixed number of seconds can be fractional or until the active Detector stops counting if no seconds specified WAIT program Waits until the named program stops execution WAIT_AUTO Waits until the optimize function is complete DSPEC only WAIT_CHANGER Waits until the sample ready signal on the rear panel is present WAIT_PZ Waits until the pole zero function is complete DSPEC only ZOOM lt i gt Changes the size of the MAESTRO window to minimized normal or maximum ZOOM lt x y w h gt Changes the position and size of the MAESTRO window to the stated values 6 3 JOB File Variables Variables have been added to the JOB file features to allow more flexibility and control of the JOBS These variables are defined by the program or by operator entries They can be used anywhere in the JOB file For example FullPath D USER SOIL SAM001 SPC then FullBase D USER SOIL SAMO01 FileExt SPC FileDir D USER SOIL ShortPath SAM001 SPC ShortBase SAMOO1 107 MAESTRO v7 Software User s Manual The following variables are expanded in JOB file strings FullPath Full pathname of the spectrum file FullBase Full pathname of the spectrum without the and extension FileExt File extension of the spectrum file without the FileDir Directory of the spectrum file without the last backslash McaDir MAESTRO directory without the last backslash
138. ive Factor and Units in the Report section then click Add New All nuclides in the table use the same units so that value need only be entered once e Selecting Peaks from the Working Library To define report peaks using the library select the Nuclide and gamma ray Energy in the Library section This defines which gamma ray to use Now in the Report section click the Select from Lib button Enter the Factor and Units then click Add New to add this nuclide to the list The ROI for this peak will be marked in the MCB s spectrum window centered on the peak energy and 3 times the width of the calibrated FWHM 53 MAESTRO v7 Software User s Manual Edit To change any of the current nuclides select the nuclide in the list use the scroll bars 1f needed This will show the current settings for this nuclide Make any changes needed Any or all of the entries can be changed When finished with the changes click on Update Delete To remove an entry select the entry and click Delete When you close the Properties dialog all the values entered are written to the DSPEC 50 and the two lowest energy ROIs and corresponding activity readouts are displayed on the DSPEC 50 screen 4 2 8 2 Nuclide Report Calculations The Nuclide Report displays the activity of up to 9 user selected peaks Once the report is set up you can view the Nuclide Report at any time The peak area calculations are the same as the calculations in MAESTRO and o
139. k into the list into a different order Cut nuclides remain queued up for pasting last one first according to the nuclide name on the Paste button To move a nuclide to the end of the library list Cut the nuclide from the list highlight the end entry and click on the Paste button 7 2 3 4 Editing Nuclide Peaks When a nuclide is selected in the working library file the right half of the Editing dialog shows the peak list Note the column headers Rank Energy and Percent To sort the peak list by a particular parameter in the list click on the appropriate header To edit a peak either double click on the peak in the right hand list or click once on it then click on the Edit button This will open the Edit Library Peak dialog Fig 105 The Energy keV Gammas per 100 Disintegrations Photon Flags and Peak Flags will already be listed The Photon Flags and Peak Flags are not used in MAESTRO The Photon Flags are used to show the origin of the peak Only one can be selected at a ttme Gamma Ray G and X Ray X mean the peak energy is due to a nuclear or atomic transition respectively Positron 136 Decay P is used for the 511 keV peak Single Escape S peaks are peaks for which a single 511 keV photon has escaped the detector This can only occur for full energy peaks above 7 UTILITIES r Edit Library Peak Associated Nuclide Eu 154 Energy keV EEES Gammas per 100 Disintegrations 3 5000E 001
140. l EX for A jeden vee arises ated A bate E ee ae E 65 4 3 1 2 Sensitivity Factor A A 66 4 3 1 3 Background Points EE 66 Aide TE EE 66 E ly General A eis oe r EA E OA OS re a a ee 66 4 3 2 2 How to Calibrate A ute ele id eed 67 At Data Rane ie Vere aloe SEA cam SR Ra eR ca a ee ees 68 4 5 4 SA aaa A ale neces 68 ASS Peak re DEE 69 doi Calculations EE 70 4 3 6 Input Count EE 72 AT EE 72 EE EE EEN 73 E A eased Cee ORE ae RR EER a EIA 73 a NETVICESS di ae d in Aa an a dl bilia ieri labiale nta A abita 74 AA TJOD Contoh Sirtori ee eae ea ene vie we eee de Maat 74 4 4 1 1 Editing a JOB File ccna tussle Satin stay ae eae E 74 EE EEN 75 AAD l Select SEN 76 AAD Selec EE He e EIER Ee EE 77 44 4 Lock Unlock RE e a ace snd Sed we Bae ee ble candied tt Ji AAS Edit Detector E AA A O A we ke Aa 78 A Da ARON NEE eas ea PE DAT 79 AE A A A cei 80 AI IMA ATRAER AAN EEE 80 e AA ALE 80 ASA Mark A as ha he td A Ris ate aS ee he wats 80 A oe A fou Ph bo ee gini ue ne ae ee SOR ee et ee ee 81 MAESTROS v7 Software User s Manual ce Se Clear All unc esn aug ned hae wae 5 7 AUG leak an dE lia 5 8 Sav Miles 2529 Ae Seis hates 5 9 Recall File aa SE E DR EEN Deiector Bufter anaana 3 Logarithmic e SE ee 4 Automatic 5 Baseline Zoom Os Loon et aa 7 8 RAB 4 6 FID D D Zoom Out e EEN H Full View
141. l ORTEC programs running on all PCs connected to the workgroup The default description for each instrument is derived from the hardware and can be changed within the configuration program The MAESTRO MCA Pick List initially contains all of the instruments in the master list e Add To add a Detector to the MAESTRO Pick List for this PC click on the name in the Master list then click on Add To add all the Detectors on the Master Detector List click on All Remove To remove a Detector from this local pick list click on the name in the Pick List and click on Remove To remove all the Detectors click on New When Detector selection is complete click on OK These selections will be saved to disk and used by MAESTRO until changed on this screen or until the entire network is reconfigured CONNECTIONS programs such as MAESTRO can have more than one Detector pick list on the PC For more information on creating and using alternate pick lists see the listname discussion on page 141 4 5 ROI An ROI region of interest is a way to denote channels or groups of channels in the spectrum as having special meaning An ROI can be used to mark peak areas for the printout or 79 MAESTRO v7 Software User s Manual to mark a peak to stop acquisition when that peak reaches a preset value Channels marked as ROI channels are displayed in a different color than the unmarked channels The ROI menu is shown in Fig 77 Its functions a
142. l be Live Time Real Time 1 0 60 3 Live Time x 100 100 Dead Time If the N counts in the gamma ray peak in the spectrum are divided by the elapsed live time the resulting counting rate N Live Time is now corrected for dead time losses The standard deviation in that counting rate is y N Live Time Unfortunately extending the counting time to make up for losses due to system busy results in an incorrect result if the gamma ray flux is changing as a function of time If an isotope with a very short half life is placed in front of the detector the spectrometer might start out with a very high dead time but the isotope will decay during the count and the dead time will be zero by the end of the count If the spectrometer extends the counting time to make up for the lost counts it will no longer be counting the same source as when the losses occurred As a result the number of counts in the peak will not be correct When a supported ORTEC MCB operates in ZDT mode it adjusts for the dead time losses by taking very short acquisitions and applying a correction in real time that is as the data are coming in to the number of counts in the spectrum This technique allows the gamma ray flux to change while the acquisition is in progress yet the total counts recorded in each of the peaks are correct The resulting spectrum has no dead time at all in ZDT mode the data are corrected not the acquisition time Thus
143. le that already exists you are prompted for confirmation of the operation by this warning See also OK To Overwrite Existing File File is wrong size Can t STRIP The STRIP function requires a compatible file for stripping from the spectrum in memory i e must contain the same number of channels File not found The requested file could not be found This is Windows Error 2 Fine gain is at limit of This message appears in the Marker Information Line when an attempt is made to change the gain setting in some MCBs e g 92X with the keyboard function but gain cannot be decreased or increased any further Firmware communication failure Firmware reported error The MCB firmware did not respond or responded with an error See hardware manual for meaning of message Hardware failure This message appears as the result of an Detector execution error with microcode 137 indicating a hardware failure See hardware manual for more details High voltage not enabled START was attempted on a MCB while the high voltage was not enabled Illegal Detector The Detector number for the requested function was not identifiable as part of the active configuration 152 APPENDIX C ERROR MESSAGES Illegal entry The input to a dialog box is not correct Incorrect Windows version The version of Windows does not support this program use a later version of Windows Insufficient memory for detector descriptions Insuffic
144. lect a series of spectra with increasing ROI peak counts by appending zeroes to the loop counter to obtain 1000 counts then 2000 and so on 121 MAESTROS v7 Software User s Manual SET_PRESET_INTEGRAL lt counts gt Sets the ROI Integral count preset value for the active Detector The preset is set to the entered value With this preset condition the Detector stops counting when the sum of all counts in all channels marked with an ROI reaches this limit If no ROIs are marked in the Detector the Detector never meets this condition This command has the same function as the ROI Integral field on the Presets tab under Acquire MCB Properties refer to Section 4 2 8 for additional information The JOB processor expects one or more numerals as the argument to this command entered with or without quotation marks e g you can enter the numerals 1000 or the string 1000 The JOB processor will also accept the loop counter as an argument to the function as long as it is set in quotation marks For example you could use the loop counter to collect a series of spectra with increasing ROI integral counts by appending zeroes to the loop counter to obtain 1000 counts then 2000 and so on SET_PRESET_LIVE lt seconds gt This command sets the Live Time preset for the active Detector The preset is set to the entered value With this condition the Detector stops counting when the live time reaches this limit unless some other preset condition occ
145. ll separated clean peaks with ROIs The object is to supply the energies for these peaks This is not absolutely necessary since if no ROI is present at the marker the marker channel itself will be used However that is less accurate than using the ROI method e Place the marker on one of the peaks and press lt Insert gt to insert an ROI on the peak Select Calculate Calibration to choose the marked peak and calculate the centroid of the peak If there is an ROI at the marker and the marked peak is good that is if it can be used in the calculation the program will ask for the energy of the peak see Fig 56 If there is no ROI at the marker a warning will appear at the bottom of the screen see Fig 57 and the marker channel will be used instead of the peak centroid Now move the marker to the second peak and repeat the process e After the second peak value is entered the program will ask for up to four characters for the units see Fig 58 The system is now calibrated and the marker location is shown in both channels and the input units You might continue to add peaks up to 96 for a better quadratic fit to the data The fit is automatically redone after each point is entered 67 MAESTRO v7 Software User s Manual Marker 3573 uncal No ROI found using single channel calibration point 1 145 Cnts Calibration Units Entering Calibration for point number 1 keV Fig 57 Calib
146. ll stop until the entry is made 101 MAESTROS v7 Software User s Manual The ASK commands will also stop the JOB file and prompt you to enter the requested information The JOB file will continue when you click on OK or press lt Enter gt on the dialog The input is used or stored immediately before the next JOB instruction except for the ASK_SPECTRUM command NOTE Asis the case when saving with the menu or toolbar commands if you choose Cancel when responding to an ask on save prompt the entire save operation is canceled for that particular spectrum 6 1 4 Password Locked Detectors When JOB files are used with locked Detectors the first time a destructive command is used on the locked Detector you will be prompted for the password Alternatively you can use the ASK_PASSWORD command at the beginning of the JOB From then on while the JOB file executes the password is retained and you will not receive a prompt When the JOB file quits the password is forgotten 6 1 5 JOB Files and the New Multiple Detector Interface This release of MAESTRO allows you to open eight Detector windows and eight buffer windows at one time However as in previous MAESTRO releases there is no limit on the number of Detectors that can be operated using JOB files and only one JOB at a time can run in a single instance of MAESTRO The only difference in MAESTRO v7 is that a Detector window will open for each SET_DETECTOR command in the JOB to a
147. lled by the selection in the Display Preferences menu item That choice does not affect the PHA mode choice The colors are the same as for the PHA mode Not all DSP MCBs support all marks None PileUpReject NegBLDisc BaseLineR PosBLDisc Busy Gate Peak No channels are marked in the display The region marked indicates when the PUR circuit has detected pileup and is rejecting the marked pulses This shows when the negative baseline discriminator has been triggered Typically this signal only marks the TRP reset pulse The signal is used internally in the live time correction baseline restoration and pile up rejection circuits This shows when the baseline restorer is actively restoring the baseline This shows when the positive baseline discriminator has been triggered The signal is used internally in the live time correction baseline restoration and pile up rejection circuits When the busy signal is active Busy shows in the Mark box It represents the dead time This shows when the gate signal is present on the gate input connector If the Gate mode on the ADC tab see Fig 51 is set to Off then all regions are marked If the mode is set to Coincidence then the marked region must overlap the pulse peak that is must start before the beginning of the flattop and stop after the end of the flattop for the pulse to be counted If the mode is set to Anticoincidence then the marked region will show the pulses
148. lt 2 gt Stop acquisition in selected Detector lt Alt 3 gt Clear data in selected Detector lt Alt 5 gt Copy data in the selected Detector to the buffer lt Alt 6 gt or lt F4 gt Switch between displaying selected Detector and buffer lt Alt gt Decrease amplifier fine gain by smallest increment where supported lt Shift Alt gt Decrease amplifier fine gain by several increments lt Alt gt Increase amplifier fine gain by smallest increment lt Shift Alt gt Increase amplifier fine gain by several increments lt PrintScreen gt Capture screen to Windows Clipboard 92 5 KEYBOARD COMMANDS D ye d Aeq 194Bly x N 2 yead Je 1q1 Joao X3N E sda s Auew ures au se u E 10Y 19UBIY x N S IO U 19MO 3X3N S d s ure6 auy ases 9u E yead 13yBly Leah 2 yead Joao ah Q J9PIM 2uUeyo 13yBly ah ie D UUEUZ Jamo X N gt umop windj2ads 3YYdNO9 F 5 J191104S 4 sda s Auew uies auy asea193g S 103 HIEIN SUI dn wny9ads 3YYdNOI S days ues au oses199q E low 18219 180 eL J9MOLIEN 49 U39 any IDATA LU ITA EE ECerZerrrers SES EP eZee TA med tT TT ET et tT el TY H E d s ure6 auy ases19u E uj wooz das ure6b auy se q gt mo wooz enuey a e9sojny I yO jauueys 3sayBiy 0 dunr pua IO MEIN 319su J9PIM 84 49I1eL 9 yewun 0 Puuey 03 dwnp woH IOJ I atOlsiaiad JaMOMe
149. marks 277 in the text where the loop count is to be inserted The loop count replaces wherever it appears REM Text This line is a comment remark and is ignored during command processing The REM command allows entering descriptive comments into script files or disabling commands during testing of scripts 118 6 JOB FILES REPORT filename Produces a list of areas activities and peak shapes for all the ROIs marked in the spectrum See File ROI Report Section 4 1 7 for more information on the report format and contents The ROI data is presented in either columns or paragraphs according to the format most recently selected in the ROI Report dialog therefore you can choose a format before executing the JOB file If you do not specify a filename the report will be sent to the default Windows printer for this PC If you specify a filename the report will be sent to an ASCII text file that can be used by other programs or printed later The loop count value can be included in the filename by typing three question marks in the text where the loop count is to be inserted The loop count replaces in the filename The filename can include any of the variables defined in Section 6 3 RUN program Executes an application named program This is typically an EXE or PIF filename Note that the program might not run to completion before the JOB file exits unless it is run at higher priority or the WAIT
150. maximum of eight and these windows will function as follows e JOB streams use the SET_DETECTOR command to open Detector windows If eight Detector windows are already open and SET_DETECTOR is issued to open a ninth window the oldest displayed Detector window will be closed without prompting e Once a Detector window is open it cannot be closed within a JOB except by exceeding the eighth window open On startup MAESTRO will attempt to open with all Detector windows that were open the last time the program was shut down Therefore when running a JOB from the command line if you wish to see only the Detector window s called from the JOB stream use b on the command line to force MAESTRO to open in a buffer window see Section A 1 When running MAESTRO in interactive mode be sure to close any windows you do not wish to see during the JOB execution The same buffer window is always selected by the commands in a JOB therefore a JOB does not open multiple buffer windows 102 6 JOB FILES When you start a JOB a Detector window will open for each Detector called by the JOB file The JOB filename will be echoed on the main MAESTRO title bar as well as on the title bars of all open spectrum windows 6 2 Summary of JOB Commands This section provides a quick reference to the JOB commands for more detailed information see Section 6 5 In the following descriptions a variable filename or text is enclosed in a
151. ment List Fig 1 If you wish you may enter customized instrument ID numbers and descriptions Section 2 3 2 When you close the dialog any changes you have made to an ID number or description will be written back to the corresponding Detector E Configure Instruments Version 8 01 Number amp Description Close 1 DSPec 2 DSPec 3 DS50 00P2U2 MCB 1 4 DS50 11195158 MCB 1 5 DS50 11195158 MCB 2 7 Station 6 Right 8 Station 5 Left 11 Station 3 13 Station 4 14 DSPEC PRO MCB 129 Instr Input System Cancel Help Renumber All Renumber New Fig 1 Detector Numbering and Descriptions 2 3 1 Configuring a New Instrument The first time a new instrument is detected the dialog shown in Fig 2 will remind you that all new instruments must be assigned a unique non zero ID number Click on OK You can either manually change the ID Number and Description as described in the next subsection or you can click on the Renumber New button to renumber only the new instruments This is the first time you have configured these detectors All detectors must have an ID number Since none of your detectors have ID numbers it is recommended that you press Renumber Al to establish initial ID numbers for your detectors Fig 2 New Instruments Must Have a Non Zero ID Number NOTE We recommend not using the Renumber All button In addition we strongly recommend not renumbering Detectors that
152. n usually because the file does not exist JOB Error 3 Unable to RUN non EXE file An attempt was made to execute a non executable file JOB Error 6 Unknown command An unrecognized command was found in a JOB file Check spelling JOB Error 5 Unknown error from MCBCIO An error occurred with the MCB communications but the error was not recognized Unable to strip Detector memory The stripping function must be performed in the buffer Warning 128 Warning 64 Warning 8 All three of the above messages are the result of Detector START or STOP warnings and are hardware dependent Warning Buffer was modified When the MAESTRO program is being closed this message appears if the buffer spectrum has been modified but not yet saved to disk This gives you the option of saving the buffer instead of losing it before closing the application 158 SPIN ME 18 CEG ee ten Sheraton eileen BARS 143 CHN WEE EE 21 143 CX ess wre oon ok Save Sees eh ea Bh OR Els 143 JOB see also Job 101 143 LBrorsrgirlalio dae 18 131 143 borsone ere 3 EE 143 A denis 143 ir Pe 143 floating point locomotora 21 A Wines Oh eae 21 DEE ta EE Ee 21 TXT hence Bey EE 143 227 JOB loop counter 110 Accelerator keys ecient eas oh aoe 91 Keyboard Nap ons eee gassosa nia 93 quick reference table y A dd Eer er 92 Acquire menu et cow ewes Oh oe 35 Acquisition presets 49 ADC rinda ta 1
153. n Options These three radio buttons Minimized Maximized and Normal Window are used to select the window for the program If the program does not have any user dialogs any option can be selected If the program needs user inputs Normal Window should be selected 25 MAESTRO v7 Software User s Manual 4 1 1 4 Directories Use this tab Fig 25 to select the default file directories for libraries calibrations JOB files and other MAESTRO file types A File Settings General Export Import Directories File Types Location Start Up C User Context Files C UserkCxt Spectra C User ROI Files C User Libraries C User Job Files C User Reports C User Fig 25 Directories Tab To change the path Location of a particular File Type click on the desired file type to high light it then click on Modify This will open a standard file recall dialog Choose a new path and click on Open When all path changes have been completed click on OK to use them or Cancel to retain the previous settings 4 1 2 Recall This function reads a spectrum or List Mode file into a new buffer window It opens a standard Windows file open dialog Fig 26 allowing you to select the file to be recalled Note the Show Description checkbox on the lower left of the Recall Spectrum File dialog Use this to view the sample description format and spectrum size of a file without having to open it
154. name 8H4275 Spc Open programs supplied or can be user 0 TO e Supp lied When Export 1S Iw Show Description Real Data Format 8192 Channels selected the Export Spectrum File NBS SRM 4275 24 SN 1141 01 MAY 81 12 00EST 6CM FROM ENDCAP dialog Fig 28 opens Choose the EU 154 57184 6 BOS EU 155 25781 6 BOS 58 125 41588 0 BOS filename of the spectrum to be exported and click on Open Fig 28 The Export Spectrum File Dialog The currently displayed spectrum must be saved to disk before it can be exported If the currently displayed spectrum has already been stored to disk that filename is the default Any file can be selected The file is then read and the output file is written by the program The Export function is not available for a second file until the first file has been exported and the export program has stopped execution Export can also be used to generate hardcopy spectra To do this select the WINPLOTS program supplied with MAESTRO as the export program When Export has been selected the WINPLOTS program will be executed If the P switch is specified on the command line see Sections 4 1 1 2 and 7 1 3 the program will print the spectrum and exit automatically 4 1 5 Import The Import function allows you to read in spectrum files that are not in one of the usual formats 1 e CHN or SPC The import program is specified on the Import tab under File Settings as discussed in Sec
155. nd a variable number is enclosed in lt gt anything enclosed in square brackets is optional ASK_PASSWORD Asks for password used to lock Detectors BEEP lt freq gt lt duration gt Produces an audible sound of lt freq gt Hz lasting lt duration gt milliseconds BEEP ID A numerical ID is given based on a desired system event BEEP String String can be a WAV file or any event defined in the Registry CALL file job Executes another Job file as a subroutine CHANGE_SAMPLE Provides sample changer hardware handshake CLEAR Clears the data and descriptors in the active Detector CLOSEBUFFERS Closes all open buffer windows CLOSEMCBS Closes all open Detector windows DESCRIBE_SAMPLE text Enters the text into the sample description to be saved with the spectrum 103 MAESTRO v7 Software User s Manual EXPORT filename Executes the Export function with the filename specified FILL_BUFFER Transfers the data from the active Detector to the buffer IMPORT filename Executes the Import function with the filename specified LOAD_LIBRARY filename extension Loads a nuclide library LOCK Pwd Name Locks the current Detector using Pwd as the password If the optional Name parameter is missing the Locked name defaults to Job LOOP lt reps gt END_LOOP Executes all the commands between LOOP and END lt reps gt number of times LOO
156. nd C to read header and channel data from a CHN data file BR RK RK KH KK KK KH KK KKK HK KKK He He He de de He He e A include lt stdio h gt include lt stdlib h gt define CHN 1 main argc argv int argc char argv char acq time 8 buffer for time date month 4 buffer for month string short f type CHN file type unsigned short chan offset beginning channel number count loop counter mca_num MCA number num_chans no of data channels num_writ no of bytes written out segment segment number year acquisition year day acquisition day hour acquisition hour minute acquisition minute second acquisition second long int livetime 20ms tics of livetime real_time 20ms tics of realtime chan data stores channel data FILE f pointer if argc 2 printf USAGE readchn filename chnin exit 1 f pointer fopen argv 1 rb 146 APPENDIX B MAESTRO FILE FORMATS BR KK KK KK KH KK KKK HK KKK KKH KK KKK HK KKK KH KKK KKK KKK KKK KKK KKK KKK Header Data Output header info from CHN file BR KK KK KKK HK KK KK KH KK KK KH KK KK KH KKK KKH AA IATA AA IAA KKK KKK KKK Read fileype 1 CHN fread amp f_type sizeof f_type 1 f pointer if type CHN printf Not a valid file n exit 1 fread amp mca_num size
157. ng in the case where the lt seconds gt argument is not included or for a fixed number of seconds which can be fractional NOTE The wait for end of acquisition form of the command i e no argument will suspend the JOB indefinitely if there are no preset conditions that can be satisfied 1 e if acquisition proceeds indefinitely WAIT program This command suspends execution of the JOB until the named program stops execution If the program does not stop the JOB will not continue WAIT_AUTO For the DSPEC only this waits until the optimize function is complete WAIT_CHANGER For MCBs with sample changer controls e g DSPEC 919E this waits until the sample ready signal on the rear panel is present It is used in conjunction with the SEND_MESSAGE function for more control over the sample changer than is provided by the CHANGE_SAMPLE command 124 6 JOB FILES WAIT PZ This waits until the pole zero function is complete Not valid on all MCBs ZOOM lt i gt Changes the size of the MAESTRO window Selects one of icon normal or maximum according to the argument The arguments are Sd Minimize icon on Taskbar 0 Normal size determined by last use I Maximize full screen ZOOM lt x y w h gt Changes the position and size of the MAESTRO window The arguments are X position of upper left corner of window 0 is left y position of upper left corner of window 0 is top width of wind
158. ng point are identical except Slc la C ASCII Spe Data for the format of the spectrum data The integer SPC format should be li do used unless the files are to be used eee ration source 1714 by earlier versions of ORTEC pro grams The SPC files written by MAESTRO contain the energy calibration data and the hardware parameters The integer format stores the spectrum as 4 byte inte Fig 18 General Tab gers and the floating point format uses the 4 byte exponential format used in the hardware math coprocessor e g 80387 and most languages for the PC The analysis and calibration formats are defined in the File Structure Manual The ASCII SPE format is used by the Comprehensive Test Ban Treaty Organization CTBTO Sample Description allows you to designate the default sample description to be saved with the spectrum 128 character maximum for SPC files 63 characters for CHN files If you also mark the corresponding Ask on Save checkbox this description will be presented for acceptance or modification when the spectrum is saved This is a time saver that lets you enter the common descriptors for a group of samples ahead of time then add the unique descriptors on a sample by sample basis after acquisition 4 1 1 2 Export Click on the Export tab to display the screen shown in Fig 19 The program arguments and file directory to be used when the Export function is selected are specified here Choose any program tha
159. no other program or PC on the network can modify this value If the Detector is password locked see Section 4 4 4 you must know the password before you can modify its MCB properties To view a locked Detector s properties in read only mode click on Cancel when the Unlock Password dialog opens 4 2 8 1 DSPEC 50 Amplifier Figure 40 shows the Amplifier tab Properties for DSPEC 50 This tab contains the controls for Gain Baseline Restore Preamp lifier Type Input Polarity and High Voltage About Status Presets MDA Preset Nuciide Report Amplifier Ampifier2 AmplfierPRO ADC Stabilizer dede Gain 0 50 Baseline Restore Optimize Optimize Ss nai i i Auto D Le Ca Gei fal get Ca ET al Stop Auto WEE a NOTE Be sure that all of the EN Preamplifier Type E controls on the tabs have a 0 5000 Resistor Feedbact D Input Polarity been set before clicking Geier HET the Start Auto optimize button The changes you make on most property tabs take place immediately There is no cancel or undo for these dialogs Count Rate too low for for OPTI Fig 40 DSPEC 50 Amplifier Tab Gain Set the amplifier coarse gain by selecting from the Coarse droplist then adjust the Fine gain with the horizontal slider bar or the edit box in the range of 0 5 to 1 1 The resulting effective gain is shown at the top of the Gain section The two controls used together cover the entire range of amplific
160. ntents the results of certain calculations warning messages or instructions 3 3 Spectrum Displays The Full and Expanded Spectrum Views respectively show a complete histogram of the current spectrum whether from a Detector or the buffer and an expanded view of all or part of the spectrum These two windows are the central features of the MAESTRO screen All other windows and most functions relate to the spectrum windows The Display Preferences menu lets you adjust the color and fill type of the various spectrum features e g background spectrum ROIs e Full Spectrum View This view is embedded in the Expanded Spectrum View and shows all channels of Detector data memory as configured with the MCB Properties command on the Acquire menu It includes a rectangular area showing the portion of spectrum currently displayed in the Expanded View and a data acquisition mode indicator refer to item 8 on the preceding page The vertical scale in the Full Spectrum View is always logarithmic e Expanded Spectrum View The Expanded Spectrum View contains a reverse color marker line at the horizontal position of the pixel representing the marker channel This marker can be moved with the mouse pointer as described in Section 3 5 1 and with the lt lt gt lt gt and lt PgUp gt lt PgDn gt keys Information about the marked channel is displayed on the Marker Information Line Use the menu commands accelerator keys and toolba
161. nuclide library as described below Following are the command line arguments P listname Optionally uses listname as the Detector pick list name The pick list name must be 5 characters or less If a pick list is not specified M32MCA is used by default The current pick list name is displayed above the Pick List column in the Detector List Editor dialog Services Edit Detector List If the pick list name specified by pick does not exist then one is created This new list will contain all available detectors included in the Master Detector List If the pick list already exists only the detectors defined in that list are displayed in the Detector droplist on the toolbar Changes made to the pick list with the Edit Detector List command are stored 141 MAESTRO v7 Software User s Manual L file lib file job B with the active pick list filename Therefore to create multiple pick lists use the P option with the pick list name and then edit the list to contain only the desired Detectors The contents of the list can be overridden with the Edit Detector list function The new list will be stored for use the next time this instance of MAESTRO is run Pre loads the nuclide library file lib instead of the default library LIB lib This can include a path specification which will override the library path specified on the Directories tab under File Settings see Section 4 1 1 4 Begins execution of the job le job imm
162. of mca_num 1 f_pointer MCA fread amp segment sizeof segment 1 f_pointer seg fread acq time sizeof char 2 f pointer start time acq_time 2 0 seconds short atoi acq time fread amp realtime sizeof realtime 1 f pointer 20 ms tics fread amp livetime sizeof livetime 1 f pointer 20 ms tics fread acq time sizeof char 3 f pointer start day acq time 2 0 day short atoi acq time fread month sizeof char 4 f pointer start month month 3 0 fread acq time sizeof char 2 f pointer start year acq time 2 0 year 1900 short atoi acq time fread acq_ time sizeof char 1 f pointer century if acq time 0 gt O year year acq time 0 0 100 fread acq_ time sizeof char 3 f pointer hour acq time 2 0 hour short atoi acq_time fread acq_ time sizeof char 2 f pointer minute acq time 2 0 minute short atoi acq time fread amp chan_offset sizeof chan_offset 1 f_pointer offset 147 MAESTROS v7 Software User s Manual fread amp num_chans sizeof nuM_chans 1 f pointer chans printf FILE TYPE d MCA 6d n E type mca num printf SEGMENT d n segment printf REALTIME d SECONDS n realtime 50 printf LIVETIME d SECONDS n livetime 50 printf DATA COLLE
163. of the numbers assigned by other users on your network Ideally everyone using ORTEC instruments on your network should make this change To prevent others from renumbering your Detectors or performing any other actions except read only viewing password lock your Detectors with the Lock Unlock Detector command Section 4 4 4 If you lock a detector that will be controlled by a JOB stream remember to include the proper password unlock commands in your JOB file Section 6 1 4 If a modified description has already been applied to a particular instrument you can restore the default description by deleting the entry in the Description field and re running MCB Config uration After MCB Configuration runs the default description will be displayed MAESTROS v7 Software User s Manual 2 3 3 Editing the MCB Configuration Command Line The command line for the MCB Configuration program is C Program Files Common Files ORTEC Shared UMCBI mcbcon32 exe You can modify the way the MCB Configuration program runs by adding one or more of the following flags to the command line You can use any combination of flags or none and the flags are not case sensitive I Ignore duplicate IDs MCB Configuration allows you to accept an instrument list with duplicate detector ID numbers no renumbering is required Useful for customers using our QA tools JOB commands and Gamma Total function and when sharing a network with other users of
164. only available in Settings buffer mode Peak Info and Sum are not available if the Detector Calibration is acquiring data List Data Range Peak Search 4 3 1 Settings eee This dialog shown in Fig 55 allows you to set the FW 1 x M input Count Rate and the peak search sensitivity factor Smooth 4 3 1 1 x for FW 1 x M Strip This is the x factor used in the full width at 1 x maximum calcu n Calculate lation in the Peak Info calculation for the ROI peak marked by the cursor Section 4 3 5 This number is retained and used until changed Use the up down buttons to select the x factor which is an integer from 2 to 99 Peak Info always prints the FWHM so an x of 2 is not needed 65 MAESTRO v7 Software User s Manual 4 3 1 2 Sensitivity Factor Sets the sensitivity of the Peak Search analysis Calculation Settings Section 4 3 4 which compares the magnitude of the second difference with the weighted error of the chan 8 for PW 1 x M nel counts If the second difference is greater than the Sensitivity Factor ER A weighted error the peak is marked in the spectrum Cancel window This setting is a multiplicative factor in the Background Points 3 weighting factor and can set from 1 to 5 1 being the most sensitive that is 1 finds the most peaks A Fig 55 The Calculation Settings value of 1 will find small peaks but will also find Dialog many false peaks A value of 5
165. or example you could use the loop counter to collect a series 122 6 JOB FILES of spectra with increasing ROI integral counts by appending zeroes to the loop counter to obtain 1000 counts then 2000 and so on SET_PRESET_UNCERTAINTY lt uncert limit gt lt low chan gt lt high chan gt For the DSPEC only this sets the statistical preset to the uncertainty based on the counts in the region between the low and high channels See Section 4 2 8 and Eq 22 page 78 for the details of the calculation SET_RANGE M dd yyyy hh mm ss lt t gt or SET_RANGE 1 t Displays a time slice of data from a LIS file that has been recalled into a buffer There are two syntaxes A time slice can be recalled by specifying the absolute date as M dd yyyy where M is month dd is day yyyy is year time as hh mm ss where hh is hour mm is minute and ss is second and f is the time slice duration Alternatively specify the Detector real time at which the slice should start as r and the time slice duration as Real time and duration values can be fractional SMOOTH This command smooths the data in the active buffer window Its function is the same as Smooth under the Calculate menu A five point area preserving binomial smoothing algorithm is used The original contents of the buffer are lost START This command initiates data collection in the selected Detector This function is the same as Start under the Acquire menu ST
166. ot change The fine gain can also be set using Acquire Adjust Controls Section 3 2 3 lt Alt gt lt Alt gt on the keyboard and Keypad lt Alt gt lt Alt gt 96 5 KEYBOARD COMMANDS 5 2 14 Screen Capture lt PrintScreen gt The lt PrintScreen gt key captures the entire monitor display to the Windows Clipboard where it is available for use in other applications such as word processors Windows Paint Some older keyboards require lt Alt PrintScreen gt or lt Shift PrintScreen gt A typical usage would be to set up the display as desired for the snapshot you might wish to use Display Preferences Spectrum Colors to select black or white for all areas rather than colors since they produce clearer printouts then press lt PrintScreen gt Start the desired graphics or word processing application Copy the image from the Clipboard with lt Ctrl V gt or Edit Paste refer to the documentation for the graphics or word processing program See the Inbit FullShot manual for other screen capture and screen printing methods 5 3 Keyboard Number Combinations NOTE Only the keyboard numbers will function in the following combinations The keypad number keys will not perform these functions 5 3 1 Start lt Alt 1 gt lt Alt 1 gt starts the acquisition in the selected Detector Any presets desired must be entered before starting acquisition This accelerator duplicates the Start toolbar button the
167. ot displayed and the spectrum is not saved to disk NOTE Before downloading make sure the current conversion gain setting for this Detector see the ADC tab under Acquire MCB Properties is the same as or greater than the conversion gain of the stored spectra otherwise the downloaded spectra will be truncated at the current conversion gain setting For example if a digiDART was used to acquire 8k spectra in the field and the current conversion gain setting is 4k only the first 4096 channels of data in each spectrum will be downloaded 4 2 7 View ZDT Corrected This command is active 1 for a Detector that supports ZDT Mode and has one of the ZDT modes enabled on the ADC tab under Acquire MCB Properties and 2 a ZDT spectrum file recalled into a buffer window When the Detector is in the CORR_ERR ZDT mode the NORM_CORR mode is typically not used two spectra are collected the uncertainty spectrum labeled ERR and the zero dead time corrected spectrum labeled ZDT see the discussion in Section 4 2 8 4 for more information The spectrum label is displayed in the upper right corner of the Full Spectrum View as shown in Fig 39 The View ZDT Corrected command duplicated by the shortcut lt F3 gt allows you to toggle between the two spectra Note that in the CORR_ERR ZDT mode the status sidebar does not display a live time readout for either the ERR or ZDT spectra 37 MAESTRO v7 Software User s Manual Fi
168. otope Markers The markers are shown in one of two colors If the peak area calculated in the same manner as for Peak Info is positive indicating the peak was found then the rectangle is one color normally green If the peak area is negative or zero indi cating the peak was not found then the rectangle is another color normally blue 84 3 MENU COMMANDS r E Maestro 8H4275 Spc NBS SRM 4275 24 SN 1141 01 MAY 81 12 00EST 6CM FROM ENDCAP File Acquire Calculate Services ROI Display Window SH ech olo Xx 1067 fis a Cae PAG ai A 28 Buffer 1 8H4275 Spc NBS SRM 4275 24 SN 1141 01 MAY 81 12 00EST 6CM FROM ENDCAP o JO m Pulse Ht Analysis Start 7 08 00 PM 5 30 1985 Real 30 890 98 Live 28 800 00 Dead 6 77 ROI Ins H Del E Peak aj re e a Library ei ORTEC 7 46 53 PM Mon 7 2 2012 Marker 3 009 566 42 keV 5 Cnts Next library match Eu 152 at 566 42 0 00 c Fig 82 Isotope Markers Expanded View 4 6 11 Preferences This displays the options available for selecting the screen Points colors and spectrum display options The submenu is shown Fill ROI in Fig 83 e Fill Al 4 6 1 1 Points Fill ROVFill All AA Peak Info Font Color Use these functions to select the histogram display mode for both spectrum windows Fig 83 Display Preferences Submenu In Points mode the data are displayed
169. ow in pixels starting at x and going right height in pixels starting at y and going down mak x Since these arguments are in pixels experimentation is the best way to determine the desired size 125 MAESTRO v7 Software User s Manual 126 7 UTILITIES 7 1 WINPLOTS This program generates a plot onscreen or printed of any type of ORTEC spectrum file and offers a variety of formatting options In the interactive mode a preview of the spectrum plot is automatically displayed on the screen and updated as changes are made to the display para meters You can select the start and stop channels or energy range for the plot the printer to be used logarithmic vs linear vertical scaling and the color of various plot features The sample detector and acquisition descriptions in the file can be plotted or suppressed ROIs can be plotted when stored in the spectrum SPC file or in a separate ROI file To start WINPLOTS enter winp in the search programs and files box then click on the WinPlots search result or open the Windows Start menu and click MAESTRO then WinPlots WINPLOTS can also be run in command line mode for use in JOB files or directly from other Windows programs see Section 7 1 3 In this mode the settings can be specified or the defaults can be used The spectrum files are associated with WINPLOTS by the installation program so double clicking on a spectrum filename within Windows Explorer will start WINPL
170. pad lt Del gt lt Delete gt and Keypad lt Del gt clear the ROI bits of all ROI channels contiguous to the channel containing the marker These accelerators duplicate the function of the Clear ROI button on the toolbar and the ROI Clear menu selection see Section 4 5 5 2 9 Taller Shorter elle lz The lt gt and lt l gt keys decrease or increase the vertical full scale of the displayed spectrum so the peaks appear taller or shorter respectively The minimum is 16 counts full scale the maximum is 1024 million counts Each successive key press doubles or halves the full scale until the maximum or minimum is reached Whenever the maximum full scale value is reached the next lt 1 gt key press switches to logarithmic scale If the display is already in logarithmic scale the display switches to linear scale In either case the vertical full scale value is always shown on the toolbar 95 MAESTRO v7 Software User s Manual Note that if the number of counts exceeds the full scale value the data points will be displayed at the full scale value These keys duplicate the function of the lt F6 gt lt F3 gt keys 5 2 10 Compare Vertical Separation lt Shift t gt lt Shift gt In Compare mode the lt Shift 1 gt or lt Shift gt keys decrease or increase the vertical separation between the two spectra Each successive key press will increase or decrease the separation by moving the spectrum read from disk The spectrum
171. peak Now click on the appropriate 46 3 MENU COMMANDS Enabled checkbox to turn the Properties for DSPEC 50 stabilizer on Until changed in this dialog the stabilizer will stay enabled even if the power High Voltage About Status Presets MDA Preset Nuciide Report Amplifier Ampifier2 AmpifierPRo ADC Stabilizer is turned off When the stabilizer Gain Stabilization Enabled T Zero Stabilization Enabled is enabled the Center Channel Center Chan 0 Center Chan o and Width cannot be changed Width 1 Width 1 Suggest Region Suggest Region Adjustment Adjustment Initialize 0 Initialize 0 Fig 44 DSPEC 50 Stabilizer Tab High Voltage Figure 45 shows the High Voltage Properties for DSPEC 50 tab which allows you to turn the HV on or off set and monitor the voltage select the HV Source and Amplifier Ampifier2 AmpifierPRO ADC Stabilizer High Voltage About Status Presets MDA Preset Nuclide Report Shutdown mode and indicate the Target 0 Vols See detector type and Polarity Note Of aa y tes _ that if the detector is attached via Source the rear panel DIM connector some DIM SMART v of these options may be disabled or EE E auto selected For example the Polarity Off He CH detector polarity is determined by the SMART 1 or DIM module The Source is Internal for conventional non DIM detectors DIM 296 fo
172. peaks Master or reference libraries e g the included LibO Lib or MASTER MDB from NuclideNavigator from which the working libraries are built can be any size NOTE Some old libraries might need to be rebuilt by copying the complete library to a new library as described in the following section If you receive a Can t read library error the library should be rebuilt Figure 98 shows the library Editing dialog fa 8 Editing Lib2 Lib Creation 3 5 2003 7 57 43 AM Cd 109 Cadmium Edition 3 5 2003 8 12 55 AM Half Lite 462 6 Days 2 Sigma Nuclide Uncertainty 5 4000 Nuclide Flags Edit Cd 109 Peaks Peak Flags 88 03 3 6100E 000 22 16 8 6000E 001 24 94 1 7000E 001 Insert Cut MEM A Insert Fig 98 Library Editor Dialog 132 The control menu is shown in Fig 99 click on the Title Bar icon to open it This menu contains several of the commands necessary to create and edit library files 7 2 1 Copying Nuclides From Library to Library To copy nuclides from one library to another library for example to make a working library from a master library click on the Edit window s control menu and select Show Master Library This will open a standard file open dialog Choose the desired file and click on Open Both libraries will be displayed side by side as illustrated in Fig 100 7 UTILITIES Move x Close Alt F4 Show Ma
173. pt y es Effects Sample Strikeout I Underine da Color DM Teal y Script Westem y Fig 86 Peak Info Font Color Dialog 4 7 Window This menu contains standard Windows commands for controlling Window the display of the spectrum windows Fig 87 In addition to the Cascade spectrum window display mode Cascade Tile Horizontal Tile Tile Horizontally Vertical etc the list of open buffer and Detector windows is Tile Vertically shown The currently active spectrum is checkmarked Arrange Icons v Auto Arrange The Multiple Windows command lets you choose between the vd Multiple Windows newer multiple detector window mode and the original single d 1Mcb 7 7836 detector window mode Fig 87 Window In single window mode no checkmark beside Multiple Win Menu dows to bring another window forward as the active window click on its entry in the list This is especially useful if one window has been resized and has obscured other windows 87 MAESTRO v7 Software User s Manual 4 8 Right Mouse Button Menu Figure 88 shows the right mouse button context menu To open Start 1t position the mouse pointer anywhere in the desired spectrum Stop window and click the right mouse button then use the left mouse Clear button to select from its list of commands Copy to Buffer Zoom In 4 8 1 Start Zoom Out This initiates data collection in the selected Detector Any warnings dol arising from problems de
174. r buttons to choose between logarithmic and linear scales zoom in and out and select which region of the spectrum to view You can also zoom in to any horizontal and vertical scale with the click and drag rubber rectangle tool Section 3 5 3 The baseline or zero level at the bottom of the display can also be offset with this tool allowing the greatest possible flexibility in showing the spectrum in any detail 12 3 DISPLAY FEATURES Note that the marker can be moved by no less than one pixel or one channel whichever is greater at a time The lt gt and lt gt keys make it easy to perform these small changes If true single channel motions are required you must zoom in on the desired portion of the spectrum until a single press of the lt gt and lt gt keys changes the readout on the Marker Information Line by one channel or one energy unit e g keV 3 4 The Toolbar The row of buttons below the menu bar provides convenient shortcuts to some of the most common MAESTRO menu functions si O ke le EF LS e The Recall button retrieves an existing spectrum file This is the equivalent of selecting File Recall from the menu Save copies the currently displayed spectrum to disk It duplicates the menu functions File Save or File Save As depending on whether the spectrum was recalled from disk and whether any changes have been made to the spectrum window since the last save Start Acquisi
175. r configuration Calibration per channel wrong Error when trying to calibrate spectrum arising whenever the calibration slope would be 0 negative or greater than 100 units per channel Cant Find Any More ROIs Attempting to index to the next ROI in a direction for which no more ROIs can be located Cant load read library file Attempt to open or read the library file resulted in some kind of file I O error usually because the file doesn t exist but also possibly because the disk is defective Can t run protected mode application in real mode The Windows Error 18 was detected 149 MAESTROS v7 Software User s Manual Can t run second instance of this program The Windows Error 16 was detected This is due to using non shareable DLLs Can t get valid spectrum data The system could not supply valid data Detector communication failure most likely resulting from a timeout the Detector failed to respond within a reasonable period of time Command was ignored The MCB ignored the command This might be a valid response depending on the MCB type Could not properly fit the peak Function requiring a fitted peak could not obtain an acceptable peak probably because of too few counts too narrow or non Gaussian peak shape or bad statistics such as calculated sigma squared less than zero Couldn t get background subtracted ROL A function requiring a background subtracted ROI couldn t obtain such probably because
176. r normal Windows functions of moving across the menu bar and scrolling up down within a menu respectively As soon as the menu is closed they behave as MAESTRO accelerators again 5 2 Marker and Display Function Keys 5 2 1 Next Channel lt gt gt lt gt The right and left arrow keys move the marker by one displayed pixel in the corresponding direction This might represent a jump of more than one spectral data memory channel especially if the horizontal scale in channels is larger than the width in pixels of the window see the discussion in Section 3 3 91 MAESTROS v7 Software User s Manual Table 3 Quick Reference to MAESTRO Keyboard Commands Key Function lt gt or lt F5 gt Change vertical scale so spectrum peaks are smaller lt 1 gt or lt F6 gt Change vertical scale so spectrum peaks are larger lt gt Move marker to higher channel lt gt Move marker to lower channel lt gt or lt F7 gt Narrow the horizontal scale lt gt or lt F8 gt Widen the horizontal scale lt Ctrl gt Jump to next higher peak lt Ctrl gt Jump to next lower peak lt Shift gt gt Jump to next higher ROI lt Shift gt Jump to next lower ROL lt Alt gt gt Jump to next library entry lt Alt gt Jump to previous library entry lt PageUp gt Jump to higher channel number in 1 16th screen width increments lt PageDown gt Jump to lower channel number in 1 16th screen width increments
177. r the Model 296 and DIM SMART for all other DIM based detectors Fig 45 DSPEC 50 High Voltage Tab NOTE Nal detectors require the DIM POSNAI interface and the DIM SMART source selection Enter the Target high voltage click On and monitor the voltage in the Actual field Click Off to turn off the high voltage 47 MAESTRO v7 Software User s Manual The HV will not turn on if the detector is sending a remote shutdown or overload signal The Overload indicator means there is a bad connection in your system The Shutdown indicator means that either the detector is warm or you have chosen the wrong Shutdown or Source mode The shutdown types are ORTEC TTL and SMART The ORTEC mode is used for all ORTEC detectors except SMART 1 SMART detectors Most non ORTEC detectors use the TTL mode check with the manufacturer Choose the detector Polarity SMART 1 detectors auto select this setting Normally GEM p type detectors have a positive signal and GMX n type detectors have a negative signal To use a Sodium Iodide Detector mark the checkbox This changes the gain and zero stabili zers to operate in a faster mode About This tab Fig 46 displays hard ware and firmware information about the currently selected DSPEC 50 as well as the data Acquisition Start Time and Sample description In addition the Access field shows whether the Detector is currently locked with a password Section 4 4 4 Read Write indicates
178. rPRO ADC Stabilizer Low Frequency Rejecter cK i sla Noise Rejection Level T Resolution Enhancer 2 2 e Enables resolution enhancement for the Gain Stablilzer Enhanced Throughput Mode Protection Time 12 800 us Fig 42 DSPEC 50 Amplifier PRO Tab detectors and instruments shielding cables removing nearby motors generators etc If you cannot eliminate the noise increase the rejection level setting until the dead time returns to the expected low value e Note that higher values may reduce the effectiveness of the pile up rejector when processing very low energy pulses e On systems for which very high dead times are expected Oe gt 60 especially with very low energy sources e g Am decreasing this setting can improve the performance of the spectrometer with respect to live time correction and the ability to process signals at higher input rates Enhanced Throughput Mode This feature can help reduce the low side peak tailing that results from increased charge trapping see the discussion in the hardware manual for more details This function will not improve poor resolution due to other causes The valid Protection Time settings in 25 ns increments range as follows LFR Mode Highest Throughput Lowest Throughput minimum Protection Time maximum Protection Time Off Rise Time flattop 2 x Rise Time Flattop On 3 x Rise Time 2 x Flattop 6 x Rise Time 3 x Flattop
179. ration with No ROI Cancel Fig 58 Enter the Calibration Units 4 3 3 List Data Range Use this dialog Fig 59 to retrieve a fier nase Doce eae specified time slice of data from a List Mode LIS file that has been recalled Data Start Date Time D 7 2012 9 19 32PM into a buffer window See also the List Duration 5612 Seconds Mode discussion Section 1 5 Click to highlight the desired start and si ETS end Date Time values then adjust them by clicking the up down buttons or set Fig 59 Select a Time Slice of List Mode Data the desired Data Start Date Time and enter the time slice Duration in whole seconds To retrieve the data click Apply Use the Increment button to add the next more data to the currently displayed time slice set the Duration then click Increment To save a time slice in any MAESTRO file format i e as list files and or spectrum files use the Save commands To redisplay the complete data set click Restore This command is duplicated by the List Data Range button on the toolbar 4 3 4 Peak Search This function performs a Mariscotti type peak search on the spectrum in the Detector when the Detector is not collecting data or the buffer and marks the detected peaks as ROIs The peak search sensitivity is selected in the Settings item of this menu Section 4 3 1 3 Each peak found is marked as an ROI If the system is calibrated the width of the ROI is th
180. rd to Lock a Detector Marker 500 185 23 keV Detector Locked by Thom P Fig 74 Name of Detector Owner 4 4 5 Edit Detector List Unlock Detector Password 4 _Lancel_ Fig 73 Unlocking a Detector Locked Detector Cancel Fig 75 Password Required To Unlock Detector Password This function allows you to select the Detectors that will be available to MAESTRO on this PC Other applications e g ScintiVision AlphaVision GammaVision on the same PC can have their own lists In this way the different Detectors on the network can be segregated by function or type NOTE When you invoke this command all Detector windows close without warning all buffer windows close with a warning and a buffer window opens The buffer window remains open after you have closed the Detector List Editor dialog Figure 76 shows the Detector List Editor dialog On the left is the Master Detector List of all Detectors on the system 78 3 MENU COMMANDS a Detector List Editor Master Detector List MCA Pick List 00007 Station 3 00011 digiDART OK 00008 Station 4 00019 IDM 200 00011 digiDART 00020 RANDTGX270 00012 MCB 338 Cancel 00013 MCB 921E 00019 IDM 200 00020 RANDTGX270 00021 Station 5 Left E Fig 76 Detector List Editor Dialog This master list is created by the MCB Configuration program see Section 2 3 and is the same for al
181. re available in both buffer and Detector windows See Section 3 5 3 for Off F2 or Alt 0 ROI operations performed with the mouse Mark F2 or Alt M UnMark F2 or Alt U 4 5 1 Off Mark Peak Insert This sets the ROI status to Off In this state the ROI bit for the channels will not change as the cursor moves This function is Sen duplicated by lt Alt O gt and by lt F2 gt which toggles between Off Mark and UnMark Save File Recall File The usual ROI status is Off so the marker can be moved on the e Fig 77 ROI Menu display without changing any of the ROI bits 4 5 2 Mark This sets the ROI status to the Mark or set condition In this state the cursor channels are marked with the ROI bit as the cursor is moved with lt gt or lt gt into the channel Moving the marker with the mouse does not change the ROI in this mode This function is duplicated lt Alt M gt and by lt F2 gt which toggles between Off Mark and UnMark ROIs can also be marked with the rubber rectangle and right mouse button menu see Sections 3 5 3 and 4 8 8 and as described in Section 4 5 4 4 5 3 UnMark This sets the ROI status to the unmark or reset condition In this state the channels are unmarked with the ROI bit as the cursor is moved with lt gt or lt gt into the channel Moving the marker with the mouse does not alter the ROI in this mode This function is duplicated by lt Alt U gt and by lt F2 gt
182. ree times the calculated FWHM of the peak If not calibrated the width of the ROI is based on the width of the peak as determined by the peak search Overlapping or close peaks may have contiguous ROIs Existing ROIs are not cleared The analogous JOB stream command SET_RANGE page 123 can use fractional real times and durations 5M A Mariscotti A Method for Automatic Identification of Peaks in the Presence of Background and its Application to Spectrum Analysis Nuclear Instruments and Methods 50 309 320 1967 68 3 MENU COMMANDS The ROI Report command see Section 4 1 7 can be used with this function to produce a semi quantitative nuclide list for the spectrum 4 3 5 Peak Info This command operates when the marker is Peak 3146 37 1173 38 keV iti i i FWHM 2 16 FW 175 M 3 32 positioned m S peak REA SE marked en Library Co 60 Cobalt at 1173 24 338 3 cA an ROI It displays the following information Gross Area 7991531 b danthe Simni Net Area 7522128 3129 In a pop up box and on the Supplementary Gross Net Count Rate 359 31 338 20 cps Information Line Fig 60 o If the spectrum is not calibrated the centroid channel FWHM FW1 xM all in channels gross area net area and net area uncertainty are displayed for the ROI o If the spectrum is calibrated the Marker 3146 117324 keV 1 209 049 Cnts centroid channel FWHM FWI IxXM Best library match Co 60 Cobalt at 1173 24 338 3
183. rker position to the left to lower channel numbers or right to higher channel numbers respectively 1 16 of the window width regardless of the horizontal scale The status of the ROT bit is not altered when the marker is moved with these keys that is the Mark UnMark Off state is ignored The marker channel contents and Marker Information Line are continuously updated as the marker jumps so when the jump is complete the marker information is up to date for the current channel 5 2 7 Insert ROI lt Insert gt or Keypad lt Ins gt These keys mark an ROI in the spectrum at the marker position in one of two ways 1 If the spectrum is calibrated the region is centered on the marker with a width of three times the calibrated FWHM There does not need to be a peak at the marker position 2 If the spectrum is not calibrated the region is centered on the peak if any located within two channels of the marker and is as wide as the peak If the peak search fails or 1f the peak is not well formed no ROI is marked There is no limit on the size of a peak or ROI therefore in some uncalibrated spectra large ROIs could be marked These accelerators duplicate the function of the Mark ROI toolbar button and the ROI Mark Peak menu selection see Section 4 5 NOTE lt Insert gt and Keypad lt Ins gt work conveniently in combination with lt Ctrl gt and lt Ctrl gt gt to rapidly set peak ROIs 5 2 8 Clear ROI lt Delete gt or Key
184. rted The loop count replaces wherever they appear RECALL_CALIB file chn Loads only the buffer calibration parameters from the calibration data stored with a spectrum This command can be used in generating reports that include library isotope identification The following is an example RECALL_CALIB CALIB001 CHN MARK_PEAKS REPORT NEWDATA RPT The report NEWDATA RPT includes isotope identification using the energy calibration contained in CALIB001 CHN RECALL_ROI file roi Marks the ROI channels in the buffer or Detector to conform to the table in the disk file created by SAVE_ROI or Save File under the ROI menu The data contents of the Detector or buffer are not altered by this operation The previous ROIs are cleared This command has the same function as Recall File under ROI It can be used in generating reports that look for specific isotopes library directed as opposed to peak search directed For example a calibration spectrum is run containing Co and Cs and ROIs marked on the 122 keV and 662 keV peaks The calibration is saved as spectrum file COBCS CHN and as ROI file COBCS ROI The command sequence is RECALL_CALIB COBCS CHN RECALL_ROI COBCS ROI REPORT COBCS RPT These commands report the values only for the 122 keV and 662 keV peaks Compare with the example for MARK_PEAKS As usual the loop count value can be included in any text by typing three question
185. s and other parameters Inform type binary format ROI ROT channel pairs created by the RO Save File function binary format B 1 3 Miscellaneous Files LIB LIBrary nuclide library Inform style binary format RPT RePorT output of analysis engine ASCII text TXT TeXT general ASCII text files used by File Print JOB ASCII text providing commands for the Services JOB Control function B 2 Program Examples The following examples show how to read CHN data files and ROI region of interest files These are simple program segments to illustrate the programming details needed 143 MAESTRO v7 Software User s Manual B 2 1 FORTRAN Language This section contains two routines one to access the CHN files and one to access the ROI files B 2 1 1 CHN Files C This program prints the header data from a GammaVision data file C and the contents of a channel C INTEGER 2 TYPE MCA SEG STRTCH LNGTDT SPCOUI 64 INTEGER 2 BEGREC ENDREC INTEGER 2 TLRTYP IS INTEGER 4 SPCIN 32 LVETME RLTIME REAL 4 ENG 2 FW 2 X1 CHARACTER 1 SRTTME 4 SRTSEC 2 SRTDTE 8 OUTPUT 30 C C START C WRITE 0 100 100 FORMAT 29X SPECTRUM PRINT ROUTINE C Open the spectrum file OPEN 1 FILE STATUS OLD ACCESS DIRECT RECL 32 C Read the first 32 bytes first record from the file READ 1 REC 1 TYPE MCA SEG SRTSEC RLTIME LVETME 1 SRTDT
186. se CHN into the dialog Note that the dot must also be entered Related filenames can also be made by adding characters before the dot e g FullBase A CHN File Path Name File Base Name Short Name Short Base File Extension Fig 20 Export Argument Macros e Short Name This will insert the filename eg test CHN into the dialog box The file name is the name selected in the Export command s dialog File names can be constructed as file base file extension e Short Base This will insert the base filename eg test into the dialog box The file base name is the name selected in the Export commande dialog e File Extension This will insert the file extension eg CHN into the dialog box The file extension is the file type for the file chosen in the Export commande dialog Note that the dot is not included Any manually inserted input of the macro form xxx will be included in the argument list without changes 23 MAESTRO v7 Software User s Manual Initial Directory The initial directory for the program to use can be specified as File Directory directly entered character strings or the user can select from Program Directory the list of macros in Fig 21 The list is displayed by clicking MAESTRO Directory on the arrow button to the right of the Initial Directory field Current Directory Fig 21 The Initial e File Directory This is the directory in which the
187. se Time in Digital MCBs To achieve the best results for your application when using a digital spectrometer such as a DSPEC series instrument we recommend that you set the rise time of the pulses being processed by the digital filter to the minimum value for the resolution needed The pulse rise time and also fall time is based on the time required for each pulse to reach its peak value This peaking time is about twice that indicated by the conventional time constants displayed on the front panel of commercial analog amplifiers For example germanium detectors are often specified at a 6 us time constant this setting is equivalent to 12 us peaking rise time in our digital spectrometers 12 Up to some value of rise time one can expect improved resolution with increasing rise time there will however be a tradeoff in maximum throughput to memory Figure 53 illustrates an example of this tradeoff ORTEC digital spectrometers operate CO o I Throughput cps thousands E On well above the peak of the throughput 1 5 9 15 20 30 50 75 95 105 120 130 140 curve Operating there allows these Count Rate kcps instruments to handle an even higher Fig 53 An Example of the Tradeoff Between rate of incoming counts but with less Throughput and Count Rate data into memory and therefore a longer count time to the same detection limit It is possible to move the peak of the curve to the right more counts to memory with
188. se additional features such as Help 3 1 Startup To start MAESTRO enter mae in the search programs and files box then click on the MAESTRO for Windows search result or open the Windows Start menu and click MAESTRO then MAESTRO for Windows Fig 4 You can also start the application by entering a command line in the search programs and files box or in XP the Windows Run dialog with or without arguments as described in Section A 1 di MAESTRO N gg MAESTRO for Windows Z MAESTRO User Manual CH MCB Configuration W Nuclide Library Editor SZ ORTEC File Structures Manual YEE WinPlots d Back Fig 4 The MAESTRO Start Menu 3 2 Screen Features Figure 5 shows MAESTRO s principal screen features 1 Title bar showing the program name and the source of the currently active spectrum window There is also a title bar on each of the spectrum windows showing the source of the data either the Detector name or the label Buffer with the spectrum name On the far right are the standard Windows Minimize Maximize and Close buttons 2 Menu Bar showing the available menu commands which can be selected with either the mouse or keyboard these functions are discussed in detail in Chapter 4 3 Toolbar beneath the menu bar containing icons for recalling spectra saving them to disk starting and stopping data acquisition and adjusting the vertical and horizontal scale of the active spectrum window
189. stabilization A biella 46 ae il cigine silla 56 operator detalls asustados 56 Zoom ds dos ed 14 83 ZOOM Ultra is Sy bd eto dee he Gos 14 83 89 162
190. ster Library Load Library Save Library As Print Library About Fig 99 Library Edit Dialog Control Menu a Editing Lib2 Lib Creation 3 5 2003 7 57 43 4M Edition 3 5 2003 8 12 55 AM Insert MEA A H T P P P B B B R A T T P U U N N P P P A Cd 109 Cadmium Half Life 462 6 Days 2 Sigma Nuclide Uncertainty 5 4000 Nuclide Flags Edit Cd 109 Peaks Peak Flags Bees Bez 03 3 6100E 000 2 16 8 6000E 001 94 1 7000E 001 Fig 100 The Master Library left and Library Editing Dialog right 133 MAESTRO v7 Software User s Manual To copy a nuclide from the master library to the working library 1 Go to the master library list and click once on the nuclide of interest This will activate the gray Insert Copy button at the bottom of the Editing dialog s nuclide list and change its label to Insert plus the name of the nuclide 2 Now in the Editing dialog locate the nuclide immediately below the desired insertion position click on it once then click on Insert nuclide name This will insert the nuclide and display its peak list on the right 3 Double clicking on a nuclide in the master library will add it to the working library inserting it immediately above the currently highlighted nuclide in the list 7 2 2 Creating a New Library Manually Open the control menu and click on New This will clear the Editing dialog so n
191. t can accept the spectrum filename as an argument on the command line Use the Browse button to automatically select the complete proper path for the program Am executable program that can be executed from the Windows Run command can be selected including DOS batch commands 22 Arguments The Arguments to the program can be specified as directly entered character strings or you can select from the list of macros shown in Fig 20 The list is displayed by clicking on the arrow button to the right of the Arguments field Entries macros or direct must be separated by spaces to be read as separate arguments e File Path Name This will insert the complete file path name e g c user spectrum test chn into the dialog box This filename is the one chosen in the Export command s file recall dialog 3 MENU COMMANDS fi File Settings General Export import Directories Export Program C Program Files x86 Maestro T ranslt Exe Browse Arguments FullPath ShortB ase asd D Initial Directory S CurDir Run Options e Minimized C Maximized Di C Normal Window Fig 19 Export Tab e File Base Name This will insert the file path name with out the extension e g c user spectrum test into the dialog The filename is the name selected in the Export command s dialog The extension can be entered manually after the macro e g FullBa
192. t of the pulse and whose vertical axis represents the number of pulses at that height also referred to as a histogram MAESTRO combined with multichannel buffer MCB hardware and a Windows computer emulates an MCA with remarkable power and flexibility The MCB performs the actual pulse height analysis while the computer and operating system make available the display facility and data archiving hardware and drivers The MAESTRO software is the vital link that marries these components to provide meaningful access to the MCB via the user interface provided by the PC hardware MAESTRO continuously shows the spectrum being acquired the current operating conditions and the available menus All important operations that need to be performed on the spectrum such as peak location insertion of regions of interest ROIs and display scaling and sizing are implemented with both the keyboard accelerators and mouse toolbar and menus Spectrum peak searching report generation printing archiving calibration and other analysis tools are available from the menus And this version of MAESTRO continues to offer the flexibility of constructing automated job streams Chapter 6 Buffers are maintained in the computer memory to which one spectrum can be moved for display and analysis either from Detector memory or from disk while another spectrum is collected in the Detector As much as possible the buffer duplicates in memory the functions of th
193. tabase NuclideNavigator libraries Fig 68 The Library Submenu 75 MAESTRO v7 Software User s Manual 4 4 2 1 Select Peak This opens a window containing a list of the library peaks in energy order Fig 69 This list shows the nuclide name energy branching ratio in percent and half life Clicking on any field moves the marker line to that energy in the expanded spec trum view The Library List can be sorted by nuclide energy branching ratio or half life by clicking on the desired column header 4 4 2 2 Select File A nuclide library is used by the Peak Search and report functions for semi quantitative identification and activity calculations for spectral components according to calibrated peak energy At startup MAESTRO automatically attempts to load the library last loaded This working library stays resident in memory after it has been loaded It can be replaced at any time using the Select File command which displays the dialog shown in Fig 70 Either LIB type or MDB type libraries can be used When a library is loaded and if the spectrum is calibrated the Library indexing buttons on the Status Sidebar are active 76 r SZ Load Library File A ar Library List EE Lib2 Lib el reersy lesene mere nere Fig 69 Peak List Dialog Box Look in di User D e E ek Edy Name Date modified Type Size dot 7 2 2012 8 05 PM File folder
194. tected at the hardware level will appear in a Mark ROI message box or on the Supplemental Information Line at the bottom Clear ROI of the display The Detector can also be started with the lt Alt 1 gt a accelerator the Start Acquisition button on the toolbar or the Start Input Count Rate command on the right mouse button menu If the Detector is already Sum started or if a buffer window is active this entry is grayed MCB Properties 4 8 2 Stop Fig 88 Right Mouse Button Menu The Stop command is available only in Detector windows and for Spectra terminates data collection in the active Detector If the Detector is not active the entry is grayed The Detector can also be stopped with the accelerator lt Alt 2 gt the Stop Acquisition button on the toolbar and the Stop com mand on the right mouse button menu 4 8 3 Clear Clear erases the spectral data and descriptors e g real time live time start time in the active Detector or buffer window The presets are not altered This function might not operate on some types of Detectors when they are collecting data The data can also be cleared with lt Alt 3 gt the Clear Spectrum button on the toolbar or the Clear command on the right mouse button menu 4 8 4 Copy to Buffer The Copy to Buffer function transfers the data and descriptors e g live time real time from the active Detector window to a new buffer window This function can also be performed with lt Alt 5
195. tector number can be 1 to 999 according to the Detector configuration or 0 for the buffer Also SET_DETECTOR without an argument is used to switch to the previously selected Detector If a Detector is selected that does not exist no change is made The Detector number is the number shown on the toolbar and the Detector pick list The JOB processor expects one or more numerals as the argument to this command entered with or without quotation marks e g you can enter the numerals 1000 or the string 1000 The JOB processor will also accept the loop counter as an argument to the function as long as it is set in quotation marks For example you could use loop1 to sequence through the detector list provided the detector list is in numerical sequence This command for values 1 to 12 has the same function as lt Ctrl F1 gt through lt Ctrl F12 gt For value 0 or no argument at all it duplicates the Detector Buffer toggle under the Display menu lt F4 gt and lt Alt 6 gt 120 6 JOB FILES See also the notes on SET DETECTOR and the MAESTRO multi detector interface in Section 6 1 5 SET_LIST Switches the currently selected Detector from PHA mode to list mode SET_NAME_ STRIP file chn This command can be used before STRIP to select a disk filename to be used subsequently by the STRIP command It is not necessary to use this command because the filename can be supplied as part of the STRIP command itself how
196. tered for this nuclide It is added in quadrature to form the total uncertainty on the final report The Uncertainty value should be taken from the nuclear data sheet for this nuclide The default is zero but 2 is a realistic number The first six Nuclide Flags are used to show how Edit Library Nuclide E the nuclide was produced For example Thermal Neutron Activation T indicates that this nuclide is produced when the parent nuclide absorbs a slow Nuclide Name 755 Half Lie 85930 Jos i a Nuclide Uncertainty 0 1000 E neutron This can be helpful in organizing reports b did t M th fl b Nuclide Flags y nuci SS cory org an one ag can de Iw Thermal Neutron Activation T marked Libraries produced with NuclideNavi P Fast Mater Activation e gator II or later will already have these flags set V Fission Product i For other libraries consult a reference for the Naturally Occurring Isotope N proper values Photon Reaction P Charged Particle Reaction 0 T No MDA Calculation M The No MDA Calculation flag indicates the T Activity Notin Total A nuclide will not be reported unless present in the spectrum If this is not marked the MDA value Cancel will be printed if the nuclide is not present in the spectrum The No MDA Calculation and Activity Fig 103 Edit or Manually Add Not in Total flags are not used in MAESTRO tee 7 2 3 1 Manually Adding Nuclides To manually a
197. th the spectrum and is printed by the REPORT command Note that the loop counter the in the JOB file text is used in the SAVE and DESCRIBE_SAMPLE commands 110 6 JOB FILES The new JOB file is SET_DETECTOR 1 SET_PRESET_CLEAR SET_PRESET_LIVE 1000 LOOP 10 CLEAR START WAIT FILL_BUFFER SET_DETECTOR O DESCRIBE_SAMPLE This is sample SAVE DECAY CHN RECALL_ROI DECAYPK ROI REPORT PRN SET_DETECTOR 1 END_LOOP Spooling the report might take some time To overlap the data collection with the analysis the logic of the JOB file needs to be modified to restart the acquisition after the data have been moved to the buffer NOTE All of the analysis is performed on the buffer spectrum so the Detector spectrum can be erased and the next one started Insert CLEAR and START after FILL_BUFFER as shown here SET_DETECTOR 1 SET_PRESET_CLEAR SET_PRESET_LIVE 1000 CLEAR START LOOP 10 WAIT FILL_BUFFER CLEAR START SET_DETECTOR O DESCRIBE_SAMPLE This is sample SAVE DECAY CHN RECALL_ROI DECAYPK ROI REPORT PRN SET_DETECTOR 1 END_LOOP These few examples have shown some of the possibilities of the JOB language in MAESTRO 111 MAESTROS v7 Software User s Manual 6 4 2 JOB Commands for List Mode This section discusses the JOB commands for MCBs that support List Mode which is discussed in Section 1 5 The SET_LIST and SET_PHA commands switch the selected
198. the ROI where n is the number of background points selected on the dialog under Acquire Settings Section 4 3 1 3 The channel number for this background point is the midpoint fractional channel of Ee the n points The background on the high channel side of the peak is the average of the last n channels of the ROI The channel number for this background point is also the midpoint fractional channel of the n points These n points on each side of the peak form the end points of the straight line background l Fig 61 Calculation Details The background is given by the following l n 1 h B Vice S cee 17 i i h n 1 2n where B the background area I the ROI low limit h the ROI high limit C the contents of channel i n the number of background points The gross area is the sum of all the channels marked by the ROI according to the following h A 2 C 18 70 3 MENU COMMANDS where A the gross counts in the ROI I the ROT low limit h the ROT high limit C the contents of channel i The adjusted gross area is the sum of all the channels marked by the ROI but not used in the background according to the following h n Aig 2 CG 19 where Aag the adjusted gross counts in the ROI I the ROI low limit h the ROT high limit C the contents of channel i n the number of background points The net area is the adjusted gross area minus the adjusted calculated back
199. the name of the JOB file on the command line when MAESTRO is first started e g MCA32 DEMO JOB or from Windows Explorer by right clicking on the JOB file and selecting Run with MAESTRO JOB files are used for the following types of functions e Performing a repetitive task such as running a sequence of experiments without user intervention e Defining initial conditions at startup useful in preloading presets after a power loss for the 916 916A 917 918 918A each time MAESTRO is run 6 1 Job Command Functionality JOB files written for previous versions of MAESTRO can be used The text versions of these files will work on new Detectors as well as older models with the exception of new commands and deleted commands 6 1 1 Loops MAESTRO has the ability to run repetitive loops Furthermore the current loop count can be included as a variable in any string including filenames program parameters and text Data can thus be stored with unique filenames and labeled with unique descriptions 6 1 2 Errors If an error is encountered in running a JOB file the execution of the file stops and control returns to MAESTRO An error code appears in the JOB Control dialog box as described in Section 4 4 1 6 1 3 Ask on Save If the Ask on Save see File Settings fields are turned on MAESTRO will ask the corresponding questions when SAVE commands are executed in the JOB file This means that execution of the JOB file wi
200. the net counts in a peak are divided by the real time to determine the count rate ZDT mode has a unique feature in that it can store both the corrected spectrum and the uncor rected spectrum or the corrected spectrum and the uncertainty spectrum Therefore supported SPatent number 6 327 549 57 MAESTRO v7 Software User s Manual MCBs allow you to choose between three ZDT Mode settings on the ADC tab under MCB Properties Off NORM_CORR and CORR_ERR 58 Off Uncorrected Spectrum Only In this mode only the uncorrected spectrum live time and real time with dead time losses also called the live time corrected or LTC spectrum is collected and stored in the SPC file The LTC spectrum can be used to determine exactly how many pulses at any energy were processed by the spectrometer The corrected spectrum gives the best estimate of the total counts that would have been in the peak if the system were free of dead time effects The uncertainty spectrum can be used to calculate the counting uncertainty channel by channel in the corrected spectrum NOTE When the spectrometer is placed in ZDT mode the throughput of the instrument is reduced somewhat as extra processing must be done on the spectrum there fore if the gamma ray flux is not changing as a function of time but absolute highest throughput is desirable you may wish to store only the LTC spectrum in the MCB memory NORM_CORR ZDT and Uncorrected Spectra
201. ther ORTEC software so the Report contents can be duplicated using the spectra stored in the PC The calculated value is computed by multiplying the net peak count rate by a user defined constant If the constant includes the efficiency and branching ratio the displayed value will be activity The nuclide label and the activity units are entered by the user The report has this format Nuclide keV uCi m2 CO 60 1332 5 1 21E 01 10 2 CO 60 1173 2 1 09E 01 12 3 CO 57 122 1 1 48E 00 86 2 Calculations These are the calculations used to generate the Nuclide Report s Activity Uncertainty and Peak values Activity is calculated as follows NetCounts NucCoef Activity S LiveTime 54 3 MENU COMMANDS NucCoef is normally the inverse of efficiency times the branching ratio Note that the efficiency is the ABSOLUTE counting efficiency for the source detector geometry being used Thus in order to get meaningful activity results as in any counting situation you need to have efficiency factors which are appropriate to the actual counting geometry If NucCoef is set to 1 you will get peak count rate on the display LiveTime is the current live time NetCounts is computed with the following equation NetCounts GrossCounts Background GrossCounts is the sum of the counts in the ROI excluding the first and last 3 channels of the ROI Background is Background Degen en ee ee ROIWidth ROIWidth is ROIWidth EndChann
202. there was no ROI at the point specified or mightbe because there weren t statistically significant counts above background Default Printer Failure The REPORT or PRINT function was aborted because the default system printer has not been properly setup Go to Windows Control Panel Printers install the appropriate printer and select it as outlined in the Microsoft Windows documentation Detector Error Macro Micro An unresolved error originating in the Detector The offending Detector command is shown together with the macro and micro error codes If the error persists the error codes should be recorded and the factory should be contacted Detector busy with other tasks not responding This indicates the Detector was unable to respond within a certain time limit due to other activities such as multiple instances of MAESTRO accessing the Detector at the same time or otherwise heavy use of the Detector interface Detector does not support Field Mode Job Error 19 An attempt was made to execute the LOOP_SPECTRA or VIEW command on a Detector that does not support Field Mode 150 APPENDIX C ERROR MESSAGES Detector Error The selected Detector could not be STARTed or STOPped due to some unresolved error condition Disk network or firmware I O error An I O error was detected Detector locked by An attempt to modify the contents of a locked Detector was made The person named has locked t
203. time could be high resulting in a long counting time for the sample 49 MAESTRO v7 Software User s Manual If you set the ROI Peak preset in Properties for DSPEC 50 addition to the Live Time preset the low level samples will be counted to the desired fixed live time while the Amplifier Amplifier2 AmpifierPRO ADC Stabilizer High Voltage About Status Presets MDA Preset Nuciide Report i U taint very active samples will be counted 6000 00 Real Time s mie for the ROI peak count In this _ o did he ROI Peak Live Time s circumstance the eak preset Start Chan 0 n i safety valve ER can be viewed as a safety valve ROI Peak ents EE ROI Integral ents The values of all presets for the currently selected MCB are shown on the Status Sidebar These values do not change as new values are entered on the Presets tab the changes take place only when you Close the Properties dialog Suggest Region Fig 48 DSPEC 50 Presets Tab Enter the Real Time and Live Time presets in units of seconds and fractions of a second These values are stored internally with a resolution of 20 milliseconds ms since the MCB clock increments by 20 ms Real time means elapsed time or clock time Live time refers to the amount of time that the MCB is available to accept another pulse 1 e is not busy and is equal to the real time minus the dead time the time the MCB is not a
204. tion 4 1 1 3 The program can be one of the programs supplied or can be user supplied This command opens a standard Windows file open dialog so you can select the file name The file is then read and a spectrum file is written to the specified directory MAESTRO attempts to read this file in CHN or SPC format and displays the spectrum in the buffer 28 3 MENU COMMANDS If the import program does not produce a file that MAESTRO can read the buffer window remains empty 4 1 6 Print The Print function does one of the following e If the marker is in an ROL the data contents of the ROI channels are printed e Ifthe marker is not in an ROI the contents of channels in the expanded view are printed Use the Print dialog Fig 29 to print Prine the output or save it in a disk file click Printer on Print to file to mark it An abort Nam EE Properties box appears while the function is being She Pee S Type Microsoft XPS Document Writer performed allowing you to cancel the E operation The printer can be selected Comment Print to file or its properties changed via a standard Windows printer setup dialog Fig 29 Print Spectrum The data are formatted at seven channels per line with the channel number on the left 4 1 7 ROI Report IL The ROI Report function creates ROI Report a report describing acquisition con Ci ditions and contents of all ROIs Name
205. tion 4 1 6 Answer the prompts and click on OK For output to a file you are asked for a file name for the output 7 2 5 Close This exits the GammaVision Library Editor and returns control to Windows If the library has been changed but not saved a warning message will be displayed To abandon any changes and restore the library to the condition before editing exit without saving 7 2 6 About This displays a window Fig 106 containing PopUp Library Editor for Ms general information about the library editor that may be useful should you need technical ula e ci Version 1 17 support Copyright 2011 Advanced Measurement Technology Inc All Rights Reserved Fig 106 About LibEdit 7 3 TRANSLT The TRANSLT program TRANSLT EXE located in c Program Files MAESTRO 5 translates several different text files to and from SPC or CHN files All operation is controlled from the command line The command line is TRANSLT type inname type outname w nc col n ni nh i SC Program Files x86 MAESTRO on 64 bit Windows computers 138 where type inname type outname nc col n ni 7 UTILITIES chn The inname file is in CHN format spc The inname file is in SPC format txt The inname file is in ASCII text format The default is based on the filename extension and the i switch Both chn and spc cannot be used together The input spectrum file no
206. tion starts data collection in the current Detector This duplicates Acquire Start and lt Alt 1 gt Stop Acquisition stops data collection This duplicates Acquire Stop and lt Alt 2 gt Clear Spectrum clears the detector or file spectrum from the window This duplicates Acquire Clear and lt Alt 3 gt List Mode toggles the current Detector between PHA and LIST modes This duplicates Acquire List Mode An indicator in the upper right of the Full Spectrum View shows the current data acquisition mode List Data Range lets you retrieve a specified time slice of data from a LIS file in a buffer window Section 4 3 3 This duplicates Calculate List Data Range Mark ROI automatically marks an ROI in the spectrum at the marker position according to the criteria in Section 4 5 4 This duplicates ROI Mark Peak and lt Insert gt Clear ROI removes the ROI mark from the channels of the peak currently selected with the marker This duplicates ROI Clear and lt Delete gt 13 MAESTRO v7 Software User s Manual The next section of the toolbar Fig 7 contains the buttons that control LOG tos A the spectrum s vertical scale These commands are also on the Display Fig 7 Vertical menu In addition vertical scale can be adjusted by zooming in with the Scaling Section of mouse see Section 3 5 3 Toolbar tes Vertical Log Lin Scale switches between logarithmic and linear Al scaling When switching from logarithmic
207. to linear it uses the previous linear scale setting Its keyboard duplicate is Keypad lt gt Vertical Auto Scale turns on the autoscale mode a linear scale that automatically adjusts until the largest peak shown is at its maximum height without overflowing the display Its keyboard duplicate is Keypad lt gt The field to the left of these two buttons displays LOG if the scale is logarithmic or indicates the current vertical full scale linear value The horizontal scaling section Fig 8 follows next It includes Le Luz a field that shows the current window width in channels and the Zoom In Zoom Out Center and Baseline Zoom buttons Fig 8 Horizontal Scaling Section of Toolbar These commands are also on the Display menu In addition horizontal scale can be adjusted by zooming in with the mouse see Section 3 5 3 Att Zoom In decreases the horizontal full scale of the Expanded Spectrum View according to the discussion in Section 3 3 so the peaks appear magnified This duplicates Display Zoom In and Keypad lt gt Zoom Out increases the horizontal full scale of the Expanded Spectrum View according to the discussion in Section 3 3 so the peaks appear reduced in size This duplicates Display Zoom Out and Keypad lt gt Center moves the marker to the center of the screen by shifting the spectrum without moving the marker from its current channel This duplicates Display Center and Keypad lt 5 gt
208. tween LOOP and END_LOOP The number of execution times is specified by lt repetitions gt Each command must be given on a separate line A value of 0 executes once A LOOP with no END_LOOP statement executes once The loop count value can be included in any text by typing three question marks in the text where the loop count is to be inserted The loop count replaces the first time the question marks appear NOTE Spaces should be included only in the text and not in the filename Filenames with spaces cannot easily be used by DOS commands The following is an example SET_DETECTOR 1 SET_PRESET_LIVE 20 LOOP 3 SET_Detector 1 CLEAR START WAIT 116 6 JOB FILES FILL_BUFFER SET_DETECTOR O SAVE TEST CHN END_LOOP The above commands run three 20 second acquisitions and store the data on a disk in files TESTOO1 CHN TEST002 CHN and TEST003 CHN LOOP SPECTRA END_LOOP Executes the commands within the loop once for each spectrum stored in the Detector hardware This command only works for hardware that supports Field Mode MARK_PEAKS Executes a Mariscotti type peak search on the spectrum in the active Detector or buffer window and duplicates the Calculate Peak Search command The peak search sensitivity is selected in Calculate Settings Each peak found is marked as an ROI If the buffer is calibrated the width of the ROI is three times the calculated FWHM of the peak If the buffer 1s not calibrated
209. uclides can be entered manually Click on the Insert button to open the Insert Library Nuclide dialog shown in Fig 101 Enter the Nuclide Name and Half Life and click on OK Insert Library Nuclide Y Nuclide Name Half Lie jo Days Nuclide Uncertainty 15 0000 gt Nuclide Flags Thermal Neutron Activation T Fast Neutron Activation II Fission Product I Photon Reaction P Charged Particle Reaction C No MDA Calculation M F Activity Not in Total 8 Cancel T r e 7 Naturally Occurring Isotope N e m r Fig 101 Insert a Nuclide Into a Library Now at the bottom of the right hand peak list click on Insert to open the Edit Library Peak dialog Fig 105 Enter the energy of the gamma ray and the yield branching ratio of the peak 134 7 UTILITIES 7 2 3 Editing Library List Nuclides To edit the information about a nuclide in the working library 1 Click on the nuclide to highlight it The Edit button in Edit Cd 109 the upper right of Fig 98 will change to Edit plus the name of the nuclide as shown in Fig 102 Fig 102 Ready to Edit This Nuclide 2 Click on Edit nuclide This will open the Edit Library Nuclide dialog Fig 103 The Nuclide Name Half Life Uncertainty and Nuclide Flags will already be listed The Uncertainty is a single number that represents the uncertainty 2 sigma or 95 confi dence level in the values en
210. uffer 5 3 6 Narrower Wider lt gt lt gt The lt gt key increases the horizontal scale of the Expanded Spectrum View so the peaks appear wider while the lt gt key decreases the horizontal scale making the peaks look narrower The horizontal and vertical scale values are displayed on the toolbar These functions are duplicated by lt F7 gt lt F8 gt 5 4 Function Keys 5 4 1 ROI lt F2 gt The lt F2 gt key switches the ROI marker status among the Mark UnMark and Off conditions so you can use the marker to set or clear the ROI bits for particular channels or groups of channels or return the marker to normal usage The current ROI marking status Marking Unmarking is shown in at the extreme right of the menu bar Off mode is shown as blank ROI bits are changed by using the keyboard to move the marker to a channel as follows eo Mark The channel is marked set as an ROI with the marker e UnMark The channel is removed from the ROI reset with the marker e Off The ROI status is unchanged with the marker 5 4 2 ZDT Normal lt F3 gt For MCBs that support ZDT Mode the lt F3 gt key switches between the normal LTC or uncertainty ERR spectrum and the ZDT corrected spectrum It duplicates the Acquire ZDT Display Select command 5 4 3 ZDT Compare lt Shift F3 gt For instruments with ZDT Mode In Compare mode this accelerator switches the compare spectrum between the ZDT spectrum and its accompanying L
211. ulses originating from a detector The characteristic of interest is the pulse height or voltage which is proportional to the particle or photon energy An analog to digital converter ADC is used to convert each pulse into a channel number so that each channel corresponds to a narrow range of pulse heights or voltages As pulses arrive over time the MCA collects in memory a distribution of the number of pulses with respect to pulse height a series of memory locations corresponding to ADC channels will contain the number of pulses of similar although not necessarily identical height This distribution arranged in order of ascending energies is commonly referred to as a spectrum To be useful the acquired spectrum must be available for storage and or analysis and is displayed on a graph whose You can also write your own programs to collect and analyze List Mode data For more information see the hardware manual for supported ORTEC MCBs In this manual Detector capitalized refers to the complete detector MCB assembly e g the transducer high purity germanium sodium iodide silicon surface barrier or others mated to all the MCB electronics including the ADC and histogram memory The transducers are referenced by type e g high purity germanium HPGe detector The term MCB generally refers to the multichannel buffer independent of a transducer MAESTRO v7 Software User s Manual horizontal axis represents the heigh
212. urn on the learning mode 6 You will now use the gain stabilization section of the Stabilizer tab to configure the Resolution Enhancer the gain stabilizer is disabled in the learning mode Enter the Center channel and Width of the peak acquired in Step 4 the maximum Width is 255 channels If you wish use the Suggest button The selected region should be as narrow as possible but should completely include the peak 7 Click on Initialize to clear all the Resolution Enhancer settings Initialization does not change the current Center channel and Width 8 Clear the MCB re start acquisition and monitor the FWHM of the target peak using the Peak Info command available by right clicking in the spectrum window to show the FWHM and peak counts Collect about 5000 counts in the peak and record the FWHM Clear the data and collect another 5000 counts recording the FWHM Repeat until the FWHM no longer changes Typically the more charge trapping exhibited by the detector the longer the data collection time 44 10 11 12 13 3 MENU COMMANDS When you are satisfied that the FWHM has reached the best possible value clear the MCB and collect another spectrum for confirmation At this point the Resolution Enhancer is now trained for the current peak shape parameters and the learning mode should be turned off by returning to the Amplifier PRO tab and unmarking the Resolution Enhancer checkbox The table of adjustments will
213. urs first The live time is the real time minus the dead time This command has the same function as the Live Time field on the Presets tab under Acquire MCB Properties refer to Section 4 2 8 for additional information The JOB processor expects one or more numerals as the argument to this command entered with or without quotation marks e g you can enter the numerals 1000 or the string 1000 The JOB processor will also accept the loop counter as an argument to the function as long as it is set in quotation marks For example you could use the loop counter to collect a series of spectra with increasing ROI integral counts by appending zeroes to the loop counter to obtain 1000 counts then 2000 and so on SET_PRESET_REAL lt seconds gt This command sets the Real Time preset for the active Detector The preset is set to the entered value With this preset condition the Detector stops counting when the real time reaches this limit unless some other preset condition occurs first This command has the same function as the Real Time field on the Presets tab under Acquire MCB Properties refer to Section 4 2 8 for additional information The JOB processor expects one or more numerals as the argument to this command entered with or without quotation marks e g you can enter the numerals 1000 or the string 1000 The JOB processor will also accept the loop counter as an argument to the function as long as it is set in quotation marks F
214. vailable Enter the ROI Peak count preset value in counts With this preset condition the MCB stops counting when any ROI channel reaches this value unless there are no ROIs marked in the MCB in which case that MCB continues counting until the count is manually stopped Enter the ROI Integral preset value in counts With this preset condition the MCB stops counting when the sum of all counts in all ROI channels regardless of the number of ROIs reaches this value This has no function if no ROIs are marked in the MCB The Uncertainty preset stops acquisition when the statistical or counting uncertainty of a user selected net peak reaches the value you have entered Enter the Preset in value as percent uncertainty at 1 sigma of the net peak area The range is from 99 to 0 1 in 0 1 steps You have complete control over the selected peak region The region must be at least 7 channels wide with 3 channels of background on each side of the peak Note that MAESTRO calculates this preset once per 40 seconds Therefore the software will continue data acquisition up to 40 seconds after the preset has been reached and the uncertainty achieved for a high count rate sample may be lower than the preset value 50 3 MENU COMMANDS Use the Start Channel and Width fields to enter the channel limits directly or click on Suggest Region If the marker is positioned in an ROI around the peak of interest Suggest Region reads the limits of the ROI with
215. vel Discriminators The Lower Level Discriminator sets the level of the lowest amplitude pulse that will be stored This level establishes a lower level cutoff by channel number for ADC conversions The Upper Level Discriminator sets the level of the highest amplitude pulse that will be stored This level establishes an upper level cutoff by channel number for storage Stabilizer The DSPEC 50 has both gain and zero stabilizers see Section 4 2 8 3 This tab Fig 44 shows the current stabilizer settings Each Adjust ment section shows how much adjustment is currently applied The Initialize buttons reset the adjustment to 0 If the value approaches 90 or above adjust the amplifier gain so the stabilizer can continue to function when the adjustment value reaches 100 the stabilizer cannot make further corrections in that direction The Center Channel and Width fields show the peak currently used for stabilization To enable the stabilizer enter the Center Channel and Width values manually or click on the Suggest Region button Suggest Region reads the position of the marker and inserts values into the fields If the marker is in an ROL the limits of the ROI are used If the marker is not in an ROI for calibrated spectra the center channel is the marker channel and the width is 3 times the FWHM at this energy and for uncalibrated spectra the region is centered on the peak located within two channels of the marker and as wide as the
216. which toggles between Off Mark and UnMark 4 5 4 Mark Peak This function marks an ROI in the spectrum at the marker position in one of two ways e If the spectrum is calibrated the region is centered on the marker with a width of three times the calibrated FWHM There does not need to be a peak at the marker position e If the spectrum is not calibrated the region is centered on the peak located within two channels of the marker and as wide as the peak If the peak search fails or if the peak is not 80 3 MENU COMMANDS well formed no ROI is marked There is no limit on the size of a peak or ROI therefore in some uncalibrated spectra large ROIs might be marked ROIs can also be marked this way with the ROI Ins button on the Status Sidebar the Mark ROI button on the toolbar Keypad lt Ins gt and lt Insert gt See also Mark ROI on the right mouse button menu Section 4 8 8 4 5 5 Clear This clears the ROI bits of all ROI channels contiguous to the channel containing the marker This is duplicated by the ROI Del button on the Status Sidebar Keypad lt Del gt the lt Delete gt key and the Clear ROI toolbar button See also Clear ROI on the right mouse button menu Section 4 8 9 4 5 6 Clear All This resets all the ROI bits in the displayed spectrum 1 e removes all ROI markings from the spectrum However it does not affect the ROI status of Mark Unmark Off 4 5 7 Auto Clear When this option is active
217. will locate all the big peaks but might miss some of the smaller ones The default value is 3 Use the up down buttons to adjust the setting 4 3 1 3 Background Points The number of background channels used on each side of the peak for the Peak Info calculation Section 4 3 5 The range is from 1 to 5 and the default value is 3 4 3 2 Calibration 4 3 2 1 General The Calibrate dialog Fig 56 is used to establish Calibrate a multi point calibration for the data memory such that channel position and peak parameters are Fesk in channak 2220 00 reported in the specified units as well as channels Calibration Energy Cancel If two points are entered a linear calibration is a i estroy Calibration done If three or more points are entered a quad ratic fit to the entered points up to 96 points is Fig 56 The Calibrate Dialog automatically performed The default units are keV but can be any units you supply as discussed in Section 4 3 2 2 The peak shape is measured and stored for later use in functions such as marking ROIs The calibration is stored with the spectrum when you use the Save command The calibration values are also saved when the program is exited and are read when the program is started so that the calibration is automatically restored Recalling a spectrum will also recall its associated calibration Detectors can be calibrated when they are not acquiring data Each Detector and the buf

ORTEC MAESTRO-32 v7 User's Manual 777800P

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