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Hypermet-PC 5.0 for DOS User's Guide - Institute of Isotopes

1. Troubleshooting for Hypermet PC When browsing fits or other results in Hypermet PC the program switches back to text mode screen to display the large amount of information quickly Under Windows95 and Windows NT this involves reduction of the Hypermet PC window from full screen size to a smaller size This is NOT an error but a property of the operating system To switch from this reduced size text screen back to full screen mode simply press Altt Enter Next time Hypermet PC will display information on a full sized screen If you have trouble with the installation program try to decompress the packed installation files yourself To do this type HINSTALL EXE at the DOS Prompt and follow instructions on the screen If you experience problems with Hypermet PC please inform us about the error via e mail to the following address E mail bela alpha0O iki kfki hu Known problems in Hypermet PC 5 0 The program hangs up some Windows95 systems when switching between graphics and text video modes Our experience shows that this is due to some erroneous video drivers especially for Tseng 6000 series Please consult the video card manufacturer how to obtain an updated driver file Please visit our WWW site for detected bugs and program updates http www iki kfki hu nuclear hypc html Hypermet PC 5 0 for DOS Copyright C 1997 Institute of Isotopes Bud
2. Hypermet PC has a buit in help facility which can be accessed while running the program However we provide its contents also in the form of a standard Windows help file called HYPDOS HLP If you just want to browse its contents or search for and print out topics you can easily do it as with any other Windows compatible help file Simply double click on the HYPDOS HLP file as it appears in Explorer and Windows will activate it A User s Manual has also been created for Hypermet PC All documents can be found on our WWW site p www iki kfki hu nuclear hype html Uninstalling Hypermet PC Uninstalling Hypermet PC is a simple task just remove Hypermet PC files and its directory from your hard drive If you have used this program under Windows and created an icon for it simply delete the icon from your Desktop Hardware key system drivers Hardware key system drivers are needed for Hypermet PC hardware key only under Windows NT operating system In order to work with your Sentinel hardware key provided for Hypermet PC you MUST install a system driver on your Windows NT system before the first run Our experience shows that you need to install a hardware key system driver under other operating systems ONLY IF the provided hardware key does not work properly How to install the driver 1 Unpack the ZIP ped file nt_key zip found in nt_key
3. 241 299 351 609 665 768 806 934 1120 1401 1509 1661 1729 1764 1847 2118 2204 2447 1155 1238 1280 Lisl 1407 6 TOI96 not from Helmer 226 Ra 214Pb 214 Bi in equillibrium 584320 2556 539 0 001 226 0 002 10 0 10 981 0 008 213 0 008 921 0 008 s312 04007 453 0 022 356 0 010 174 0 018 061 0 012 287 0 010 190 0 020 110 0 012 960 0 020 669 0 012 50 0 04 98 0 04 228 0 015 28 0 06 5995 0 015 494 0 014 420 0 025 220 0 03 21 0 04 86 0 10 TO DP O OOO CS POD 9 9D 2D Ss C 1 COO COs EC 0424 0111 s0390 0750 185 358 448 0129 0480 0112 0303 148 0164 0586 0144 0392 0155 028 0212 0114 0288 1536 0204 0114 0486 0150 009 210 Pb from Debertin 1988 005 005 214 Pb 010 03 05 z 214 P6 05 214 Bi from here upwards 03 007 003 005 934 0 keV 0 05 02 004 008 003 008 017 wd 004 003 006 020 004 003 009 004 CDOCVOCOCOCOCOCOCOCCOCCOCOCOCOCOCOCOCOCOCOCOCCOC oO OOD WVOCOCOCOCOOCOOCOCOCOCOOCOOOCOOCOCOCO fo 23 Am 241 8th Table of Isot 1996 App C Helmer T1 2 from IAEA91TECDOC T1 2 157850 240 26 3446 0 0002 0 024 0 001 59 5409 0 0002 0 360 0 004 CERTIFICATES Certificates for absolute detector efficiency calibration Am85 264 OMH Owner Simi Nuclide Am 241 Activity 421 2 1 0 RefDate 10 01 1985 12 00 00 Am96 293
4. OMH Owner Simonits Nuclide Am 241 Activity 22 46 1 0 RefDate 12 01 96 12 00 00 Ba85 211 OMH Owner Simi Nuclide Ba 133 Activity 456 4 1 5 RefDate 10 01 1985 12 00 00 signs the end of Nuclid std file 1 First section describes the gamma lines of nuclides which are appropriate for calibration purposes lt nuclide name gt comment for nuclide T1 2 lt half life in days gt lt abs HL unc in days gt d lt energy gt lt unc of energy gt lt abs intensity gt lt abs unc of intensity gt lt energy gt lt unc of energy gt lt abs intensity gt lt abs unc of intensity gt lt energy gt lt unc of energy gt lt abs intensity gt lt abs unc of intensity gt 2 Second section describes certificates for sources suitable for detector efficiency calibration First a section starter indicates that this is the second section CERTIFICATES T Next lines describes certificates of sources in them It is possible to measure with a combined source two or more nuclide in one certificate lt certificate name gt comment for certificate Nuclide lt nuclide name gt Activity lt activity gt lt relative unc of activity in percent gt RefDate lt time of activity measurement in mm dd yyyy hh mm ss format gt Selecting the Dataset Load menu and one of the report file formats from the appearing scroll window a HYPERMET report can be read in A subseq
5. 1 Figure 3 Automatic fit for a Ba test spectrum Look at the peak parameters By pressing the lt PgUp gt or lt PgDown gt keys you can scroll through the info pages of each fitted peak These windows contain the following parameters PEAK serial number of the peak in the region used to mark peaks on the plot ENERGY energy of the peak if the energy calibration exists POSITION centroid of GAUSSIAN in channel unit AREA net area of the peak including SKEW WIDTH ch FWHM of the peak including SKEW WIDTH KeV same as above but in energy unit GAUSSIAN ampl amplitude of fitted GAUSSIAN counts fwhm width of GAUSSIAN channel 14 Examine the fitted regions or peaks The log file allows you to replay the fitting results and examine them in detail Clicking on the LogBook menu you will find the Region and the Peak submenus Select one of them then choose the View A scroll window will pop up with a list of the fitted regions or peaks whichever chosen You can display them in channel or energy units Select the region or peak you want to examine then click OK The program will display the fit of the selected region or the region containing the selected peak If you want to look at the residual window or rather want to switch it off click on the SPECTRUM RESIDUAL toggle box at the lower right side of the display You can successively display the regions with ascending or descending serial numbers by pushing the Gray and Gr
6. Generally you need to use the Nuclides submenu only if you have found doubtful interferences in the analysis report file Fine tuning the analysis parameters Select the Parameters submenu to fine tune the selection criteria The ADDITIVE ENERGY TOLERANCE is used when searching through the peak list report file for peaks included in the library The program uses peak energy values from the peak list and the library with their corresponding uncertainties When comparing measured energies with the library values the combined uncertainties should be used Since in practice the measured energy values may differ from the expected literature values by several standard deviations due to electronic shifts an artificially 28 introduced additive energy tolerance value which is usually greater than the combined error is more meaningful when identifying the peaks This additive error can be expressed simply as a linear function of the gamma ray energy To set the parameters for this linear error function enter the energy value and the related additive error for two points in the spectrum For a typical NAA application the default tolerance values are acceptable If your analysis results are different from that you have expected try to improve the energy calibration and or increase the tolerance value Probability Filters are used to classify peak assignments The first number is the minimal acceptable probability for a peak belongin
7. directory on disk2 into a temporary folder Run SETUPX86 EXE 2 A window appears with a menu bar Select Functions and Install Sentinel Driver from the menu 3 A dialog box will appear with the NT driver path Change the path if necessary and press OK 38 4 Now the installation program copies the necessary driver files according to a following scheme To SYSTEM32 directory SNTI386 DLL To SYSTEM32 DRIVERS directory SENTINEL SYS 5 When the driver is installed a Sentinel Driver Files Copied Successfully message is displayed 6 When complete a message Driver Installed Restart your system message is displayed 7 Press OK 8 Restart your computer How to get additional information about this system driver S the User s Guide compressed into SENTINEL ZIP file This is a Microsoft Write formatted file so you may double click on it after you have uncompressed it and your Windows system will display the content of the file This file is provided as it has been obtained from the Sentinel Technologies WWW Site withou any modification To uncompress this file use e g PKUNZIP This decompressing program may be found e g at Jour WWW site Visit Rainbow Technologies WWW Site for recent updates of system drivers You can find additional system drivers for DOS and Windows based sytems there Site address http www
8. flux time weight etc Nuclides range of nuclides Parameters statistical criteria for nuclide identification Load not implemented yet Save not implemented yet If you have set the Cooling Time parameter or you do not want to modify other settings jump to section Start analysis Select the Measurement submenu An input window appears For qualitative analysis only the Cooling Time parameter is needed Select the appropriate time unit with the Time unit switch and enter the parameters characterising your sample and measurement The contents of the Sample Code field will be included in the analysis report file All the other input fields are not used for analysis at present Customise nuclide range To change the required range of nuclides from the selected library select the Nuclides submenu and click on the Change nuclide range button By doing this you can temporarily remove or reinsert individual nuclides from the library To select more than one isotope at the time hold down the lt Ctrl gt key and click on the isotopes The actual nuclide range is shown in mass numbers and chemical symbols on the top line of the input window If the cooling time is larger than 20 times the half life of a given nuclide Nuclide ID automatically excludes that nuclide from the analysis so you need not remove these nuclides manually At present this exclusion affects only those nuclides with decay type T see decay type codes in 7
9. for the shortcut name and click on the Finish button A new Hypermet PC icon will appear on your desktop A nice icon file HYPC ICO is provided in the HYPC directory for the shortcut For convenient use set Close on exit in the checkbox To set the Close on exit option right click on the newly created shortcut and select Properties Click on the Program tab and check the Close on exit checkbox If you disregard this then after exiting the program a confusing black window will remain on the screen saying Press Ctrl C to close this window To run Hypermet PC attach the hardware key to your computer s parallel i e printer port preferably before turning your computer on 37 Rules of hardware key positioning Recommended position for Hypermet PC s hardware key connected directly to the parallel port Hypermet PC s hardware key should be the first one i e closest to the computer if you are using more hardware keys at a time On some computers you should reboot your machine after you have connected the hardware key to the parallel communication port but this is usually not required IMPORTANT If you are using Windows NT you MUST install a hardware key system driver before use If you disregard this then Hypermet PC will not function About this system driver see the Hardware key system drivers section How to get help
10. section Run the HINSTALL EXE program from the installation floppy disk or from hard disk and set the parameters according to your needs and your computer environment Read the operating system specific installation notes to complete the installation How to run Hypermet PC Attach your hardware key to your computer s parallel port see Hardware key section Start HYPC EXE see the Starting Hypermet PC section If any problem arises see Troubleshooting Hypermet PC section System requirements for Hypermet PC Hardware Intel 80386 DX CPU or above or compatible mathematical co processor 2 MB RAM about 3 MB free hard disk space for Hypermet PC and another 2 MB while running the program standard VGA video card 640x480 resolution 16 colors or better mouse 34 3 5 floppy drive for the installation process Software MS DOS 6 x or any Windows system above Windows 3 1 inclusive MS DOS mouse driver software from your mouse manufacturer Sophisticated algorithms involved in Hypermet PC need a lot of computing power so the specified configuration is the low end We suggest using a faster CPU Intel 80486 or Pentium for complicated tasks such as fitting multiplets or peaks on complicated background Pre installation notes Hypermet PC is a 16 bit DOS extender application that is a DO
11. find the CHSQ X SIG value displayed in red on the info page Select one of these regions You can make a new fit by changing and fixing the region boundaries adding or deleting peaks in the database or sometimes by changing the HYPERMET parameters Figure 4 To make boundary changes easier you can drag the mouse on the upper spectrum window while pressing the right mouse button The channels selected for the region turn into blue Select Fit from the menu and start a new fit If the newly fitted region encloses an older fitted region or the boundaries of the new region are approaching the older region s limits within more than 2 x FWHM the program takes the new result as a REFIT and replaces the older one 16 That s the end of this quick tour Make a report Before you exit the program you may want to make a report Click on the Report menu and create a PeakList on the printer or screen or send it to a file Figure 5 In the last case you will be prompted to give a file name The Short list preserves the original HYPERMET output file structure You can also create SAMPO 90 compatible PTF file here in a similar way as done with the 1log file the use of the NEW button is also possible Note that a relevant SPE file is automatically created together with the PTF file thus providing full compatibility with SAMPO 90 By exit you will be prompted to keep or discard the log file but not the set file Thus if you want to k
12. nonlinearity parameter The whole range is displayed in the lower 20 half while a 20 30 channel range in the vicinity of a defective or worst Return Region Linearity Return Region Linearity CURSOR 165 CH 1 918 ch channel is displayed in the upper half of the screen All calculated parameters are listed in the info page Figure 8 DIFFERENTIAL NONLINEARITY LEFT 165 CH RIGHT 8192 CH Deviation max at 0 72 779ch INTEGRAL NONLINEARITY LEFT RIGHT 165 CH 8192 CH Deviation min Integral Nonlinearity 0 029 Figure 9 Integral nonlinearity of an ND 583 ADC 21 A unique feature of this utility is the integral linearity curve Figure 9 constructed from the measured difflin spectrum To activate this submenu select Linearity Integral from the menu bar appearing when the difflin spectrum and results are displayed This way you can simply obtain the required quality parameters of your ADC Nonlinearity calibration module With the Nonlinearity utility you can easily determine the nonlinearity of your entire measurement system The aim of this procedure is to improve the accuracy of the energy calibration For accurate results user should e determine the nonlinearity of the system and check it on a regular basis for each measuring set up using the Nonlinearity module and e apply the saved nonlinearity calibration file the LIN file every time before creating a pe
13. on our WWW site p www iki kfki ki hu nuclear hypc html Uninstalling Hypermet PC Uninstalling Hypermet PC is a simple task just remove Hypermet PC files and its directory from your hard drive Installation notes for Windows 3 x Use information in this section if you will start Hypermet PC from Windows version 3 x In order to use Hypermet PC after installation you must start it in a 386 Enhanced Mode DOS Box This can be achieved simply by creating a PIF file and placing it in your favorite Program Manager window a About 386 Enhanced Mode issues s your Windows documentation If you want to use Hypermet PC from Windows create a PIF file for it In the memory options set 2 MB of Extended memory this will be enough for everyday usage The installation program also places an icon file into Hypermet PC directory you can use it when creating the PIF file To run Hypermet PC attach the hardware key to your computer s parallel i e printer port preferably before turning your computer on 36 Rule Re di s of hardware key positioning commended position for Hypermet PC s hardware key connected rectly to the parallel port Hypermet PC s hardware key should be the first one i e closest to the computer if you are using more hardware keys at a time On some computers you should reboot your machine after you have connected the hardware key to
14. or source quit Hypermet PC and edit this file with a text editor Notepad etc insert the data of missing isotopes or sources Next time you start Hypermet PC these changes will take effect If Efficiency module can not identify all gamma lines associated with a selected nuclide try to increase the identification threshold value under Setting Polynomial First remove the loaded dataset by pressing lt PageUp gt a few times to find the relevant info page and selecting Dataset Remove After you removed the dataset load it in again by selecting Dataset Load Identification of gamma lines will now be made using new threshold values 26 2 The Nuclide ID option This option is intended for qualitative and quantitative analysis of gamma ray spectra applicable for almost every popular measurement method e g different types of neutron activation analysis prompt gamma activation analysis fission product monitoring charged particle activation photoactivation etc At this stage only a simple qualitative analysis of NAA and PGAA spectra is implemented The NAA library contains 130 isotopes with data extracted from the Table of Radioactive Isotopes 1986 Analysing an NAA spectrum Before starting an analysis First copy the STANDARD BHL Binary Hypermet PC Library and STANDARD HLL Hypermet PC Library List files from the distribution diskette to the directory where HYPC EXE resides if they are not found there The binary library is u
15. process Software MS DOS 6 x MS Windows 3 x Windows95 system or compatible MS DOS mouse driver software from the mouse manufacturer Sophisticated algorithms involved in Hypermet PC need a lot of calculations so the specified configuration is the low end We suggest using a faster CPU Intel 80 486 or Pentium for complicated tasks such as fitting of multiplets or complicated background Installation Read the operating system specific section from the HINSTALL TXT file before installation e g Installation under Windows 3 x Run the HINSTALL EXE program from the installation floppy disk and set parameters according to your needs and your computer environment Initialisation of Hypermet PC parameters Before starting the program take a look into the HYPC INI file HYPC INT is a user editable settings file To eliminate the tedious task of customising basic parameters every time when user starts the appropriate program module Hypermet PC obtains default values for different tasks from this file when the program starts TECHNICAL Win3x No The TECHNICAL section controls the critical error handling routine of Hypermet PC this causes the well known Not ready reading drive A Abort Retry Fail message Because the MS Windows 3 x versions handle this event totally differently from MS DOS or Windows95 user MUST set the Win3x variable to Yes if using this operating syste
16. rnbo com What command line options are available for SETUPX86 EXE XE Q option runs the install without dialogs Quiet Mode P Full path to SENTINEL SYS to specify the path if the current directory is not the directory where SETUPX86 EXE resides O to unconditionally overwrite th xisting driver files Without O the existing driver will be preserved if it is newer than the one to be installed U to uninstall the existing driver e g SETUPX86 EXE Q O PD PROUDCT DRIVERS WIN_NT I386 SETUPX86 EXE Q U to uninstall the driver Parts taken from Sentinel System Drivers Version 5 3 README TXT File Copyright C 1991 1996 Rainbow Technologies Inc All rights reserved Installing a DOS mouse driver If your mouse driver program is MOUSE COM or MOUSE EXE and it may be started by typing MOUSE from DOS command prompt then place a statement in your C AUTOEXEC BAT file MOUSE This command starts the mouse driver program during computer startup If this does NOT work 39 Check the mouse using another DOS based program e g Norton Commander If mouse works well using the another program a problem may have occured with your mouse driver In the latter case you need an expert to install your DOS mouse properly
17. the parallel communication port but this is usually not required How to get help Hypermet PC has a buit in help facility which can be accessed while running the program However we provide its contents also in the form of a standard Windows help file called HYPDOS HLP If you just want to browse its contents or search for and print out topics you can easily do it as with any other Windows compatible help file Simp Manager and Windows will activate it A U ly double click on the HYPDOS HLP file as it appears in File ser s Manual has also been created for Hypermet PC All documents can be found on our WWW site lnttp www iki kfki hu nuclear hype html Uninstalling Hypermet PC Uninstalling Hypermet PC is a simple task just remove Hypermet PC files and its directory from your hard drive If you have used this program under Windows and created an icon for it simply delete the icon from your program group Installation notes for Windows95 Windows NT Use information in this section if you will start Hypermet PC from Windows95 or Windows NT In order to use Hypermet PC you should create an icon for it on your desktop after installation To achieve this right click on the Desktop with the mouse select New Shortcut and press Browse Find the installed HYPC EXE and press Open then press Next gt Type Hypermet PC 5 0 for DOS
18. to 2 then Hypermet PC replaces the specified energy calibration points with the positions of the closest fitted peaks in the spectrum Therefore user can ensure a proper energy calibration for a series of measurements even if there is a minor peak shift in spectra NonlinFile specifies the default nonlinearity file for the system If the user starts Eval module then Hypermet PC loads this nonlinearity file and switches on nonlinearity correction This may increase the precision of the energy calibration EfficiencyFile specifies the default efficiency file for the system If the user starts Eval module then Hypermet PC loads this efficiency file and switches on efficiency correction When saving a peaklist from the Eval module the peaklist file will contain intensity data instead of peak areas Intensity is computed as peak area divided by the detector efficiency and by the measuring time resulting in cps value at a given peak energy SETTING EXPERTS No ght 03y Osby lt 1 Oy e0 Only 2 0 Max 2 Oe 20g ody OI 360 Min Oat Ose Vely Zao 0020 N 0 0 0O O 0O 0 0 O Sigma 4 0 3 0 6 0 3 0 3 0 4 0 Limit 0 10 le 06 le 06 1 150 This section of HYPC INI is intended for experts only It contains initial values for the peak fitting algorithm which controls the process of the spectrum evaluation For details see the attached document 7 or the online help QUALITY CONTROL DegreeOfPol 6 Residual chi G
19. user opens the logbook otherwise it should be manually displayed with clicking on the SPECT toggle green button at the bottom of the screen DualOption switches on or off the Dual LFC option for the loaded spectra automatically If user set this variable to ON then every spectrum will be displayed in Dual LFC mode until user switches OFF the LFC mode in Main or Eval module UpperLogAd j the larger this value the less logarithmic the plotted spectrum is in the upper expanded window in Main or Eval module when expanded mode is switched on The range for this value can extends from to 10 SpectrumType controls which spectrum type offered automatically at spectrum load Possible values S100 AccuSpec Ortec Sampo90 Nucleus Silena SEIKO ASCII DCHYP EVAL FIT Try 3 Auto off Fix off ROI off PeakAddError 0 5 SettingFile default set Try is the maximum number of trials when Hypermet PC will insert a new peak into the evaluated region at the position obtained by searching the maximum residual in order to improve the chi square value for the fit Minimum value is 1 maximum is 4 In general Try 3 is acceptable for almost every region Auto holds the state of the Auto check box in the Fit pop up window thus controls whether Hypermet PC evaluates automatically all the remaining regions in the spectrum Auto Yes or stops after evaluating the current region Fix contains the initial value for Fix check box
20. 10 E_litr 1S 354 9 E 84 460 Area 103755 P 170Tm 1 0 648 E_litr 84 255 P 182Ta 13 0 623 E_litr 84 681 139 E 1620 960 Area 66 140 E 1647 490 Area 95 31 141 E 1691 000 Area 31063 P 124Sb 2 0 970 E_litr 1690 980 142 E 1764 421 Area 186 143 E 1957 788 Area 56 144 E 1970 110 Area 268 TAS 4 E 2009 568 Area 1237 146 E 2039 121 Area 150 The next list contains some of interest cases listed in the Peaks by nuclides section 42K peaks Q 42K 0 363 HL 44496 00 s DecayCode 1 Spe pk LICE Rel Int Meas Energyl Litr En P ij peak max 1 0 kev kev 54 2 0 019 312 007 312 350 0 514 59Fe peaks Q 59Fe 0 835 HL 3844454 40 s DecayCode 1 Spe pk Liter Rel Int Meas Energy Litr En P ij peak max 1 0 kev kev 109 1 1 000 1099 306 1099 251 0 913 120 2 0 765 1291 602 1291 596 0 991 34 3 0 055 192 528 192 349 0 694 26 4 0 018 142 827 142 652 0 699 60Co peaks Q 60Co 0 953 HL 166321175 04 s DecayCode 4B Spe pk LIET Rel Int Meas Energy Litr En P ij peak max 1 0 kev kev 124 1 1 000 1332 486 332 90 0 977 114 2 0 999 1173 283 1173 237 0 928 69Zn can t be definitely assigned to spectrum Q 69Zn 0 004 This method is not yet fully tested on every application area of neutron activation analysis but even in this stage it helps reduce drastically the time of analyst s interaction in evaluating N
21. 1408 02 EnSigma2 OI 5 0 05 EcalMode 1 NonlinFile c hypce det EfficiencyFile c hypc det 1 nonlin lin 1l eff eff This section provides default values for a two point energy and FWHM calibration and default files for nonlinearity and efficiency correction Please note that this section can appear in SET files Fwhm1 is the variable containing the FWHM calibration data for the first calibration point of the two point FWHM calibration After the equation sign there are two numbers the first is the channel number where the calibration point is taken from while the second one is the approximate FWHM value for the peak which is found at the specified position Fwhm2 serves the second data point for the FWHM calibration line Note that the FWHM function changes by the square root of the peak energy Energy sets the first calibration point for the energy calibration User should specify the channel number energy value pair after the equation sign Energy2 sets the second data point for the linear energy calibration line EnSigmal and EnSigma2 are standard deviations of the energy calibration parameters EcalMode sets the applied energy calibration method If it is set to 0 then the energy calibration is disabled In this case the positions of peaks will be indicated only in channels If the variable is set to 1 this means a two point energy calibration at the pre set calibration positions If value of EcalMode is set
22. 85230b 1log eus0297a dat yes eu80297a set eu80297a log eusg0297b dat yes eu8s0297b set eu80297b 1log ra37076 dat yes ra37076 set ra37076 log tal82a dat yes tal82a set tal82a log tal82b dat yes tal82b set tal82b log soil7 dat no soil7 set soil7 log difflinl dat no difflin2 dat no CALIBRATION FILES 4 demo eff eff demo fwh fwh demo lin lin Non Efficiency calibration file Resolution determination file inearity calibration fil REPORT FILES WITHOUT CORRECTIONS For Nonlin agl10m pkl yes am85264a pkl am85264b pk1 ba85211la pkl yes ba85211b pkl yes cd85283 pkl co56a pkl yes co5 b pkl yes co85185a pk co85185b pk co88075a pk co88075b pk cs85230a pk cs85230b pk eu80297a pk yes eu80297b pk1 yes ra37076 pkl yes tal82a pkl yes tal82b pkl yes REPORT FILES WITH NONLINEARIT EFFICIENCY AND RESOLUTION DETERMINATION Efficiency Certificate agl10ml pk1l relative am8526al pkl absolute Am85 264 am8526b1 pk 1 absolute Am85 264 ba8521al pkl absolute Ba85 211 ba8521b1 pk l absolute Ba85 211 cd852831 pkl absolute Cd85 283 co56al pk l relative co56bl pk l relative co8518al pkl absolute Co85 185 co8518b1l pkl absolute Co85 185 co8807al pkl absolute Co88 075 co8807bl pkl absolute Co88 075 cs8523al pkl absolute Cs85 230 cs8523b1 p
23. AA measurements The Dual LFC option The Loss Free Counting LFC method provides the ability of performing real time correction of system counting losses needed e g when measuring short lived radionuclides in NAA Among the several implementations the Westphal s Virtual Pulse Generator technique of LFC seems to be the most advanced which proved to be accurate up to 700 kHz Since the LFC adds n rather than one for every event that is stored the counting statistics of the corrected spectra is non Poisson in nature Consequently the use of conventional peak search routines for LFC corrected spectra would result in hundreds of false peaks A straightforward solution marketed by Canberra is the Dual Spectrum LFC module which accumulates a loss free corrected and an uncorrected spectrum simultaneously in adjacent halves of 32 the memory Analysis of such a tandem spectrum provides more accurate quantification of the data than analysis from a single spectrum When the DualILFC mode is selected the Hypermet PC performs special fit on the tandem spectrum The settings and the preliminary steps of the fitting are the same as in normal mode but the Hypermet PC always starts with a normal peak search and fit in the uncorrected spectrum even if the corrected spectrum is displayed After the region has been fitted and the region and the peak parameters have been stored in the Logbook database the program starts a new fit in the corrected part of
24. AUTOEXEC BAT file if AUTOEXEC BAT is not containing it already SMARTDRV This will enable disk cache for your drives next time after rebooting your computer If your computer has more than 16 MB RAM then specific problems may occur If you experience memory management problems place the following line in your AUTOEXEC BAT file to set this upper memory limit used by the program 35 n ET DPMIMEM MAXMEM 16000 Please note that there are no spaces before and after the equation sign in the expression above Changes tak ffect next time after you have rebooted the computer To run Hypermet PC attach the hardware key to your computer s parallel i e printer port preferably before turning your computer on Rules of hardware key positioning Recommended position for Hypermet PC s hardware key connected directly to the parallel port Hypermet PC s hardware key should be the first one i e closest to the computer if you are using more hardware keys at a time On some computers you should reboot your machine after you have connected the hardware key to the parallel communication port but this is usually not required How to get help Hypermet PC has a buit in help facility which can be accessed while running the program A User s Manual has also been created for Hypermet PC All documents can be found
25. Hypermet PC Version 5 0 User s Manual Return Setting Fit Advance Report Logbook Help CCL4317N MCA ENERGY keV wn 5089 01240 038 AREA Cent 1520605 40 3 Copyright Institute of Isotopes Budapest Hungary 1997 Introduction The original HYPERMET code was developed in FORTRAN by Phillips and Marlow 1 in the early seventies at the Naval Research Laboratory Washington D C for automatic and efficient analysis of multichannel pulse height spectra using a high speed mainframe computer The authors governing principle has been to require minimal input from the user in order to save manpower and to minimise human errors To achieve reliable results by automatic fitting a carefully chosen semi empirical parameterized function was adopted to represent the detector response including all physical and statistical effects which contribute to a real spectrum The peak shape function of HYPERMET is the linear sum of a Gaussian and a Gaussian with exponential tail on the left side On the other hand a step function folded with the same Gaussian and a similarly folded tail function resembling a sharp Compton edge are added to the usual first or second order polynomial background function The fit becomes nonlinear as far as parameters of the Gaussians and exponentials are allowed to vary Fully automatic operation means that the shape parameters for peaks and background are found by a nonlinear fit for each separate regio
26. S program which accesses extended memory not only the lowest 640 Kbytes but all available memory up to 16 MB Therefore a little more attention is needed during the installation and BEFORE THE FIRST USE When you start the installation program a checkbox appears with the title Using Hypermet PC under Windows3 x You MUST place an X in the checkbox if you want to use Hypermet PC under Windows3 x click on the checkbox with the mouse or activate it by the pressing the Tab key a few times then press space to toggle it A WRONG SELECTION MAY CAUSE A CRASH WHEN HYPERMET PC IS TRYING TO ACCESS AN EMPTY FLOPPY DRIVE Installation notes for DOS Use information in this section if you start Hypermet PC under DOS i e when not using Windows s DOS emulator Hypermet PC has been tested only under DOS 6 x versions but probably works under versions 5 x as well In order to use some of the advanced functions of the program you need to install a mouse driver under DOS 1 To test whether a mouse driver is present start Hypermet PC If the mouse cursor slanted arrow does not appear on the graphics screen your mouse driver is not installed In this case see the Installing a DOS mouse section To speed up file I O operations we suggest the using of a disk cache program such as SMARTDRV EXE which is part of MS DOS Include the next line in your
27. a log REGION 0 LEFT 2012 CH RIGHT 2077 CH TRY i PEAKCS gt 2 CHSQ 1 121895 A S IGMA LIMIT 1i 777029 melee CHS Q 4sSIG gt bled 0 631332 SKEW PARAMETERS A G 128 G O53 B G 631 G O052 C 1 000 G 000 BACKGROUND bkg 2 550 4 127 o 086 0 070 o 000 O 001 o 006 O 001 13 320 10 882 lt lt REFITS Figure 7 Repeated fit REFIT for the above 511 514 keV multiplet using the Variable Peak Width option 19 OPTIONS Optional program modules are available from the Options menu Qual Assurance ADC test ADC nonlinearity test Nonlin spectrometer nonlinearity calibration Efficiency detector efficiency calibration using standard gamma sources FWHM not implemented yet Nuclide ID nuclide identification Dual LFC initiates an evaluation of Dual Loss Free Counting spectrum 1 The Quality Assurance option ADC test utility The linearity of a Ge spectrometer s response to radiation is an important performance parameter which depends on the linearity of its components such as amplifiers ADC s etc Two different linearity specifications are required the integral nonlinearity and the differential nonlinearity The integral nonlinearity is a measure of the deviation from an ideal straight line calibration curve For the whole spectrometer this parameter can be determined by measuring a number of gamma ray standards with well known energies This approach eliminates the
28. aklist report in the Eval module The chance is small to determine high precision peak positions in energy units without nonlinearity correction This is especially important when using Efficiency and Nuclide Identification modules because the applied algorithms try to locate peaks in the vicinity of their literature energy values with certain energy window typically 0 5 keV In practice by neglecting nonlinearity calibration beside the two point energy calibration a rather large deviation in peak positions can be expected 1 3 channels and incorrect uncertainty data will appear in the peaklist report files in general uncertainties will be smaller than the real values if user do not apply nonlinearity correction This will prevent accurate peak identification using Efficiency or Nuclide Identification modules Nonlinearity correction results in significant improvement in accuracy on peak centroid determination and takes only a few minutes to create Thus it is advisable to use nonlinearity correction whenever the user generates a peaklist file in Eval module The menu structure File New creates a new nonlinearity log file Open opens a previously saved nonlinearity log file Save saves the nonlinearity log file Save as saves the nonlinearity log file Return control returns to the Main module Setting Polynomial for setting the order of the polynomial used in the fit and threshold values used during gamma line identification Baseline to se
29. aks On the last info page you will find the following data set CHSQ reduced chi square of the fit X SIGMA LIMIT 1 X sigma SKEW PARAMETERS A normalised amplitude of SKEW B normalised divider in the exponent of SKEW C relative width of GAUSSIAN in SKEW BACKGROUND bkg average of BACKGROUND slope slope of BACKGROUND curv curvature of BACKGROUND if exists step normalised amplitude of step if exists tail normalised amplitude of tail if exists v normalised divider in the exponent of tail The SKEW is an exponential function convoluted with a GAUSSIAN representing the left side tail of the peak It is added to the symmetric GAUSSIAN peak shape function with a normalised amplitude A The step is a step function convoluted with GAUSSIAN in the background The tail resulting from the incomplete charge collection of the detector is similar to the SKEW but it belongs to the BACKGROUND For detailed description of these parameters see Ref 1 If you have made a single region fit you can continue fitting with the next region by clicking on the Advance box Figure 3 13 Return Setting Fit Advance Report LogBook bal33tsi dat bal33tsi log REGION 1 PEAK 3 ENERGY keV 80 912 10 004 POSITION ch 324 23010 017 AREA Cent 2181241 1 WIDTH Ech 13 17340 091 WIDTH keV 0 79340 023 GAUSSIAN ampl 6458 85 fwhn a t 0 CURSOR 315 CH 347 CNT 78 604 keV RESIDUAL LOG
30. apest Hungary http www iki kfki hu nuclear hypc html E mail bela alphaQ iki kfki hu nd of file 40 Notes on examples for Hypermet PC 5 0 for DOS APPENDIX B see examples txt file on the installation disk This file contains general spectrum files calibratio information about sample n files as well as report files with without efficie corrections provided by t Hypermet PC for practising by the Hypermet PC 5 0 ins Please note that if a spec Dual LFC option ON evaluation mode To switch Dual LFC mode Corrected menu ncy and nonlinearity he developers of purposes The files are automatically copied to your hard disk tallation program trum has been taken with then you must switch on Dual LFC select Options Dual LFC SPECTRUM FILES Spectrum Dual LFC Settings file Log file ag110m dat yes ag110m set ag110m log am85264a dat yes am85264a set am85264a log am85264b dat yes am85264b set am85264b log ba85211la dat yes ba85211la set ba85211la log ba85211b dat yes ba85211b set ba85211b 1log cd85283 dat yes cd85283 set cd85283 log co56a dat yes co56a set co56a log co56b dat yes co56b set co56b log co85185a dat yes co85185a set co85185a log co85185b dat yes co85185b set co85185b 1log co88075a dat yes co88075a set co88075a log co88075b dat yes co88075b set co88075b log cs85230a dat yes cs85230a set cs85230a log cs85230b dat yes cs85230b set cs
31. arance on the display Click on Display in the menu or push lt Alt gt D The submenus are Line Dots switch between line and dot type spectrum plot Lin Log switch between linear and logarithmic display Display Group selects a part of the spectrum Expand Off On switch between normal and expanded mode You can toggle the Lin Log state quickly by clicking on a green box at the lower right corner of the spectrum display where LIN or LOG text is seen In the expanded mode two spectrum windows appear on the screen In the lower window the full spectrum or a selected group of channels is displayed With the rubber band you can select a section of the spectrum with no more than 512 channels The upper window shows a selected part of the lower screen You can change the position of the rubber band by dragging the mouse pointer inside the rubber band while pressing the left mouse button or by pressing the lt Ctrl gt arrow keys You can also change the size of the rubber band by dragging the mouse positioned outside of it or by pressing the lt Alt gt arrow keys By pressing the lt Home gt key the size of the rubber band will be initialised to its largest amplitude and returned to the beginning of the spectrum Try to move the cursor by dragging the mouse while pressing the left mouse button or using the left or right arrow keys In linear display mode change the vertical scale of the drawing in the upper expanded window with factors of two by pres
32. ate intensities from the fitted peak areas These features can be switched on and off from this menu The calibration files are created by the Nonlinearity and Efficiency utilities see below The set files have set extension by default and you may also put comments there preceded by a semicolon Figure 2 Set file for an AEKI HPGe Detector 3 Eff 13 FWHM 1 74 keV d 20 35 cm ref distance Energy range 40 2000 keV MCA ACCUSPEC B card CI 2020 MOD amplifier ND 583 8K ADC LFC ON PUR ON Ne Ne Ne Ne A Simonits May 22 1995 SETTING CALIBRATION Fwhml 238 200000 3 500000 Position FWHM ch ch Fwhm2 5330 000000 6 500000 Position FWHM ch ch Energyl 238 200000 59 450000 Position Energy ch keV EnSigmal 0 040000 0 003000 Standard deviation ch keV Energy2 5330 000000 1332 500000 Position Energy ch keV EnSigma2 0 020000 0 006000 Standard deviation ch keV EcalMode 1 NonlinFile nonlin lin Default nonlinearity calibration file EfficiencyFile eff eff Default efficiency calibration file SETTING EXPERTS Nought 0 3 0 5 1 0 1 0 0 1 1 0 Max 2 0 2 0 1 3 0 1 3 0 Min 0 2 0 2 0 7 2 5 500 0 Ne 10 0 7 0 0 0 0 7 105 0 Sigma 3 0 3 0 6 0 3 0 3 0 4 0 Limit 0 10 le 06 le 06 1 150 Figure 2 A typical set file Start to fit a spectrum Select Fit from the menu An input window appears with the following pa
33. aval Research Laboratory Washington D C January 1976 2 J T Routti and S G Prussin Nucl Instr Methods 72 1969 125 3 P A Aarnio M T Nikkinen and J T Routti SAMPO 90 high resolution interactive gamma spectrum analysis including automation with macros J Radioanal Nucl Chem Articles 160 1992 289 296 4 GENIE PC Ver 2 0 1994 Users Manual Canberra Industries 5 B Fazekas G Molnar T Belgya L Dabolczi A Simonits J Radioanal Nucl Chem 215 No 2 1997 271 277 6 KAYZERO Element concentration calculation using the ko standardization method Version 3 01 User s Manual 1994 DSM Research Geleen NL 7 G W Phillips K W Marlow Program HYPERMET for Automatic Analysis of Gamma Ray Spectra from Germanium Detectors NRL Memorandum Report 3198 NAVAL RESEARCH LABORATORY Washington DC Radiation Technology Division January 1976 see nrl3198 doc on the installation disk 33 APPENDIX A Installation notes for Hypermet PC 5 0 for DOS see readme txt file on the installation disk Welcome to Hypermet PC We hope you will enjoy this superior and easy to use program for automatic evaluation of complex gamma ray spectra Please follow carefully the instructions for installation below How to install Hypermet PC Ensure that your computer meets the requirements described in the System requirements for Hypermet PC section Read th Pre installation notes
34. ay keys respectively If a REFITS string turns up in the bottom of the region info page it means that you have made alternative fits for that region You can scroll the alternative fits by clicking on the lt lt or gt gt icons appeared next to the REFITS prompt or by pushing the left or right square brackets The fit that you leave last on the screen will be the preferred alternative stored in the region list However any other alternative can still be retrieved from the log file unless deleted deliberately Managing Regions and Peaks In the LogBook menu you will find the following submenus Region View displays fitted region Delete permanently removes the region from the database Peak View displays region containing the peak Delete removes the peak from the peak database Insert adds new unevaluated peak to the database Load List loads unevaluated peaks from different files The program always attempts to fit first those peaks in a region selected which are included in the peak database When you select the Region View menu item you will find a scroll window showing the first and last channels of each region Some of them are flagged with an asterisk indicating that the normalised chi square of the fit is larger then unity i e a new try is justified to improve the fit In the scroll window of the peak database the nonsignificant peaks where the standard deviation of the area is larger than the area itself are a
35. bove list shows nuclides by their qualifier number where the Q cut off value was 0 5 The next section of the report contains some of the 32 nuclides excluded by half life constraints Nuclides excluded by half life Cooling time was 604800 sec Nuclides excluded if Tcool gt T 1 2 20 and irradiation decay code 1 Nuclide T 1 2 sec T 1 2 20 DecayType 1 27Mg 567 72 11354 40 Qos 28Al 134 40 2688 00 33 37S 303 00 6060 00 4 49Ca 522 90 10458 00 Dis SETI 345 60 6912 00 6 52V 225 00 4500 00 he 56Mn 9282 60 185652 00 8 65Ni 9072 00 181440 00 oy 66Cu 306 00 6120 00 28 165mDy 75 48 1509 60 1 29 171Er 27072 00 541440 00 1 30 176mLu 13248 00 264960 00 1 31 180mHf 19800 00 396000 00 1 32 188mRe 1116 00 22320 00 1 The next section describes the assignments made by literature energy match The P shows below the probability of assigning literture and measured peak energies Naturally during the peak assignment more literature peak can be assigned to one measured peak Nuclides by peaks Spe pk Energy Area kev cnt Ii E 50 039 Area 30750 2 E 51 058 Area 63342 By E 52 647 Area 29616 P 133Ba 7 0 251 E_litr 53 161 4 E 54 181 Area 17498 5x E 57 663 Area 26106 P 143Ce 2 0 493 E_litr STT 3167 P 159Gd 2 0 452 E_litr 58 000 6 E 59 385 Area 16183 P 111Pd 6 0 339 E_litr 59 820 Ae E 63 334 Area 62611 8 E 75 462 Area 10464 P 233Pa 6 0 8
36. ces absolutely calibrated or uncalibrated home made at the same source detector geometry Load all spectra one by one and evaluate them in Eval module applying a two point energy calibration and nonlinearity correction Then save fitting results in Hypermet PC Short Peaklist or Sampo 90 PTF Report format Start Efficiency module with selecting Options Qual Assurance Efficiency menu Load a previously saved peaklist into Efficiency module with Dataset Load menu If you have taken a measurement with an absolutely calibrated source then use Dataset Load Abs menu Select nuclide s according to current peaklist in the pop up window you can specify several nuclides at a time with the left mouse button while holding down lt Ctrl gt key Or if you have taken the measurement with an absolutely calibrated source then select the relevant source from the source list Load all peaklists into Efficiency module repeat steps 4 5 Peaklists will be normalised to the first dataset and the Efficiency calibration will be automatically adjusted after loading each dataset If an absolutely calibrated source is also involved in the efficiency curve determination then all datasets will be normalised by the absolute calibrated one If results are not meaningful missing lines etc change settings by using Setting menu es Efficiency module uses NUCLID STD file to offer a list of nuclides or sources in Step 5 If you could not find your preferred nuclide
37. eep your settings please save it into a file by clicking on the Setting Save button before quitting To leave the program select Return then File Exit Sun Mar 23 20 23 33 1997 Spectrum BA85211A DAT Logfile BA85211A LOG D3 cal new preamplt tnew 8715 ADC new 6VBIN 1995 NOV 27 Internal Version v446 Acquisition Date 11 27 1995 17 11 00 Live Time 1800 00 sec True Time 1800 00 sec Nonlinearity correction DUALLFC LIN Peak CHSQ PEAK POSITION FWHM PEAK AREA No SLIM CHANNEL ENERGY E UNC keV UNC COUNTS SUNC 1 236 92 749 23 122 0 036 0 90 0 08 3906 7 1 2 2 6 104 903 26 162 0 046 0 90 0 08 2343 11 6 3 22 6 110 961 27 677 0 176 0 90 0 13 1155 2329 4 2 6 119 002 29 689 0 162 0 90 0 13 1991 20 8 5 0 7 213 301 EAS 0 057 O25 0 05 708 1677 6 32 301 805 75 420 0 160 0 72 0 09 1240 22 4 7i 3 22 305 486 76 341 0 005 0 72 0 08 1821 RRES 8 32 309 333 77 303 0 065 0272 0 07 2005 14 4 9 312 318 534 79 605 0 016 0 72 0 04 7048 52 5 10 F2 324 098 80 997 0 005 0 72 0 03 122565 0 8 11 0 7 642 362 160 624 0 021 0 82 0 05 4785 37 12 0 3 892 577 223 226 0 010 0 88 0 03 3005 2D 13 Oise 1105 029 276 377 0 004 0 93 0 02 36949 0 7 14 0 7 1210 825 302 844 0 006 0 95 0 02 86774 0 4 15 0 6 1423 374 35 6 013 0 004 1 00 0 02 248172 O22 16 0 5 1534 674 383 852 0 005 1 02 0 02 32817 0 5 17 0 6 1747 158 436 996 0 060 Tall 0 t5 110 12L 18 0 1 5844 691 1461 084 0 079 1 34 0 12 41 932 133 Figure 5 PeakLi
38. eplaced with the identical evaluated peak if it exists THE VARIABLE PEAK WIDTH feature When using a pre set Peak Width vs Energy function usually given in the form of a b sqrt E ina set file the evaluation of the 511 keV annihilation peak in the spectrum to be processed is usually causes problems it is fitted with many peaks etc Compared to the neighbouring peaks this peak is usually very broad about two times the expected value The situation is more acute when close lying peaks are superimposed to the 511 keV peak as seen in Figure 6 The solution of the problem is to make a REFIT in the given energy range after enabling Variable Peak Width option in the Setting Fine Tune Peak submenu by switching Gaussian width to be variable and using an increased initial Peak Width value for example 8 instead of 4 The result is shown in Figure 7 sr na log REGION 0 LEFT 2012 CH RIGHT 2077 CH TRY 3 PEAKCS gt 4 CHSQ 1 707636 4S IGMA LIMIT 1i 800000 CHSQ7 lt 4 SIG 0 948686 SKEW PARAMETERS A O 535 0 070 B 1 0007 0 005 C 1 000 G 000 BACKGROUND ia 8 bkg Mji ni e es a rL i idl x 2 if ecient slope i s 5 fh m Q aw Snooopopoo m m N Figure 6 Typical HYPERMET fit for the 511 keV annihilation 514 keV Sr multiplet when using pre set Peak Width vs Energy function and automatic peak processing 18 dvance Report srn
39. es used by CANBERRA NUCLEAR DATA AccuSpec MCA s ORTEC chn files used by ORTEC MCA cards SAMPO 90 spe files generated by SAMPO 90 program Nucleus spn files generated by NUCLEUS MCAs Silena dat Silena spectrum file format SEIKO chn files used by SEIKO MCAs ASCII asc files in ASCII format used by KFKI EPCA cards etc DCHYP special input file developed at the Institute of Isotopes for the original HY PERMET code It may contain more spectra in compressed form Select one of the spectrum types A scroll input window appears with the spectrum files of the appropriate type in the current directory Figure 1 Using the scroll window you can change the directory or even the disk drive Choose the spectrum you want by double clicking on the filename or clicking on the OK button After the spectrum has been loaded the information from the spectrum file appears in the info page window on the right of the screen while the spectrum is displayed on the left side WARNING The slope 1 0 and intercept 0 0 mean that no energy calibration is defined or loaded with the spectrum If you decide here not to make any spectrum evaluation you can leave the program by clicking on the Exit box in the File menu or typing lt ALT gt F then E You can also save the spectrum in different file formats asc and spe at present using the Write box This way you can simply accomplish a spectrum conversion Change the spectrum appe
40. g to a matching nuclide and is used as a criteria for storing the assignments in the internal database If this value is set too low there will be an unrealistically high number of matching peaks for a library peak Jf this value is set too high i e above 0 25 even well defined peaks may be overlooked The second probability value is used during report generation In the report identified nuclides are listed according to qualifier Q and only those passing this cut off value will be listed We strongly recommend to change only the second value Start qualitative analysis Select Analyse for qualitative analysis An input window is shown where you can see the most important parameters for peak search Set the energy range in keV and press OK to start analysis Nuclide ID now checks all nuclides involved as you can see at the top right corner of the screen When analysis ends you can see the results with the View Full submenu Report file will be displayed on a text screen ocassionally you can expect a rather long list The full listing consists of a number of sub results e g qualifiers nuclides excluded by their half life nuclides found by relevant peak energies peaks of different nuclides identified in the spectrum etc If the results are not acceptable e g unexpected nuclides appears in the list or too much nuclides are listed in the nuclides by their qualifier number section modify the parameters and restart
41. he ROI and pressing the lt Delete gt key If you use expanded mode you can do it only in the upper window You may load or save ROI files using the ROI Load and ROI Save submenu You can clear all of the ROIs from the spectrum using the ROI Clear menu selection WARNING Sorry If you don t have a hardware key you can not proceed to the Eval menu Fitting spectra and managing fit results Select the Eval menu When a HYPERMET session is started a scroll window appears asking you to select a log file You can choose an existing log file or you can open a new one if you enter a new filename with the supported 1log extension in the text window The quickest and most common way is to push the NEW button and the log file will have by default the same name the input spectrum file has The log file subsequently stores the results of fittings that you make or have made before So if you want to continue an evaluation started in a previous session it is strongly recommended to read in such a log file that has been made with the same spectrum that you have just opened In case you deliberately want to open a different log file the scroll window will still help you because an existing log filename closest to your spectrum filename will be offered Try out the HYPERMET module After you have opened the HYPERMET session the program automatically switches to extended display mode and offers a new pull down menu tree Returnreturns
42. iation shown as a dark grey area around it A blue coloured info page displays the degree of the fitted polynomial the normalised chi square chi square devided by the degree of freedom and the fitted coefficients with their standard deviations The data set info subpages are completed with the normalising factor and the average chi square for each data set On the nonlinearity calibration subpages the average chi squares corresponding to the different standards used are also shown separately The latter are coloured in red if the average chi square exceeds the acceptance threshold see below The chi value for the data point at cursor position is displayed on the cursor info bar The degree of the fitted polynomial can be changed by clicking on the Setting menu The thresholds for peak identification and the chi square limit for acceptance of fit can also be changed here To exit from the utility click on the File Return menu Efficiency calibration module With the Efficiency utility you can easily determine the full energy peak efficiency versus gamma ray energy function of your detector The aim of this module is to provide an easy to use and fully automated method for determining the relative or absolute detector efficiency curves with the least possible user interaction The provided polynomial efficiency curve can be used for comparing different detectors as well as for analytical computations Moreover users can generate an effic
43. ical Development OM FB Hungary
44. iency corrected peak list report in the Eval module using a previously created detector efficiency curve For efficiency corrected peaklist generation user should e determine the efficiency curve of the system with the Efficiency module and e apply the saved efficiency calibration file the EFF file before creating a peaklist report in the Eval module The menu structure File New creates a new efficiency log file Open opens a previously saved nonlinearity log file Save saves the efficiency log file Save as saves the efficiency log file Return control returns to the Main module Setting Polynomial for setting the order of the polynomial used in the fit and threshold values used during gamma line identification Residual for setting the type of residual data 25 Grid enables or disables the grid in the upper window Dataset Load Loads a peaklist taken by a measurement from a non calibrated source Load Abs Loads a peaklist taken by a measurement from an absolutely calibrated gamma ray source Remove Drops a peaklist data and remove it from the actual efficiency fit Calculate automatically calculates the efficiency curve from the input data Report Short generates a short report from the current fit in text format CSV generates an extensive report from the current fit in CSV format To create an efficiency curve 7 Not Measure some spectra e g 5 spectra preferably with overlapping lines with different radioactive sour
45. in the Fit pop up window thus determines whether boundaries of the actual region should be set automatically Fix No or the fitting algorithm must use the fixed region boundaries set by the user User can set manually the region boundaries by clicking with the right mouse button in the upper expanded window and sweeping over the preferred background holding down the mouse button This region fixing works only if the user opened the logbook by Logbook Regions menu ROI controls the ROI check box in the Fit pop up window Therefore user can switch on this check box to set ROI variable to ON In this case the fitting algorithm searches peaks only in the pre set areas of ROIs PeakAddError sets the uncertainty of the peak position which is inserted by the user into a multiplet The value should be given in channels SettingFile controls the automatic handling of setting files The value assigned to this variable is the name of a settings SET file User can place variables to the settings file which affects energy and FWHM calibration Because user can specify the file name with or without absolute path path with drive letter and full path therefore user can perform sophisticated parameter setting strategies for different purposes By default Hypermet PC does not use this parameter SETTING CALIBRATION Fwhml 493 98 3 8 Fwhm2 2035 24 4 4 Energyl 493 98 344 28 EnSigmal O 0 S 0 05 Energy2 2035 24
46. kl absolute Cs85 230 eu8029al pkl absolute Eu8sg0 297 eu8029b1 pkl absolute Eu80 297 ra370761 pkl absolute Ra370 76 tal82al pkl relative tal82bl pkl relative REPORT FILE FOR SOIL71 DAT soil7l pkl 42 Y CORRECTION FOR Isotope Ag 110m Am 241 Am 241 Ba 133 Ba 133 Cd 109 Co 56 Co 56 Co 60 Co 60 Co 57 Cosi Cs 137 Cs 137 Eu 152 Eu 152 Ra 226 Files HINSTALL EXE HYPMAIN HPK HYPNUID HPK gt HYPHLP HPK README TXT APPENDIX C on the installation diskettes for Hypermet PC 5 0 for DOS see filelist txt file on the installation disk Installation program for Hypermet PC Main program package Nuclide ID package Help file package EXAMPLES TXT Readme file for installing Readme file for example files FILELIST TXT DISK2 EXAMPLES HPK HYPDOS HLP This file Examples package Windows help file for Hypermet PC MACRO directory EFFMACRO BAS EFFMACRO XLS DOC directory NRL3198 DOC NT_KE NT_KEY ZIP Visual Basic code for computing efficiency in Microsoft Excel Microsoft Excel sheet for computing efficiency Technical documentation about original HYPERMET algorithm Y directory Hardware key system driver for Windows NT 43 The program development was supported partly by the National Committee for Technolog
47. lect appropriate baseline for the fitted curve Residual for setting the type of residual data Grid enables or disables the grid in the upper window 22 Dataset Load Remove Calculate Report Short CSV loads a peaklist for the actual nonlinearity fit Drops a peaklist data and remove it from the actual nonlinearity fit automatically calculates the nonlinearity curve from the input data generates a short report from the current fit in text format generates an extensive report from the current fit in CSV format Before using the utilities make sure that the NUCLID STD file with the data of the standards is in your working directory the directory from where the HYPC program was started The file NUCLID STD is a simple text file containing nuclear and certification data of selected radioactive sources 152 Eu 182 Ta etc used for calibration purposes in Evaluation Nonlinearity Efficiency and FWHM modules This file is user editable but you must keep its fixed format Hypermet PC tries to load this file from the current directory If Nuclid std is not found there program tries to load it from the directory where Hypermet PC resides If this file not found or an error occurred during load you won t be able to use nonlinearity efficiency fwhm calibration modules and some features of Hypermet PC will be disabled The following lines serve as an example for a Nuclid std file a small part only Ra 22 T1 2 46 53 186
48. lso flagged by an asterisk and the unevaluated peaks are marked by a letter u In the Peak Insert menu the position of the cursor is taken as the peak position with 0 5 channel error as default You can change both the peak position and its error by editing a pop up window during the Peak Insert session WARNING The program considers those peaks identical which are positioned within three standard deviations of the peak centroid Consequently if the peak you wish to add to the database is closer to an other existing peak than one and a half channels you have to decrease the default error of 0 5 channel by typing in a smaller value 15 Try to improve a bad fit Return etting Fit idvance Report ogBook CHSQ C4 S1G baisstsi dat hai33tsi log REGION 1 LEFT 294 CH RIGHT 336 CH TRY sie a PEAKCS 5 CHSG 0 947200 4 SIGMA LIMIT 2 088662 4 CURSOR 315 CH 347 CNT 78 604 keV RESIDUAL LOG SKEW PARAMETERS A 0 750413 342 B 0 167 2 703 C 1 000t 0 000 BACKGROUND bkg 130 367 22 152 slope 0 697 0 563 step 0 027 0 003 Figure 4 Repeated fit REFIT by adding new peaks with the help of residuals see also Figure 3 Sometimes the program is unable to fit a region satisfactorily in automatic mode You can easily find those regions in the region scroll window because they are flagged by asterisks or when looking through the fitted regions you will
49. m otherwise Hypermet PC will crash when a critical error occurs HYPC INITIAL InitialPath c hypc spectra InitialPath d spectra LogDrawing on ExpandDrawing off LineDrawing off Residual off DualOption off UpperLogAdj 5 0 SpectrumType Accuspec This section controls the majority of the default values for displaying and file handling tasks InitialPath is the directory where Hypermet PC will try to load spectra from It can be multiple set with more drives in consecutive text rows During HYPC INI processing the program will set the directory specified for the actual drive Therefore the drive which is set in the last row will be the default drive in the example above the default path will be set to d spectra Unwanted drives can be disabled if the relevant line is preceded by a semicolon LogDrawing sets the initial spectrum display scale to logarithmic or to linear ExpandDrawing switches the expanded spectrum display mode on LineDrawing controls the displaying mode of counts If it is on then only a line is drawn between the maximal and minimal count which should be displayed in the same horizontal pixel of the screen If it is switched off then every count will be indicated with individual points on the screen Residual controls the opening of the residual window in Eval module If it is on then residual window automatically appears when
50. n in the spectrum using an initial first trial value for the peak width The latter is found by a square root interpolation from the approximate widths of two distant peaks provided by the user as the only input In contrast with SAMPO and its derivatives the shape parameters are not retained but fitted again and again Hence dynamic variations of peak shapes throughout the spectrum are automatically accounted for Moreover the tedious process of shape calibration so characteristic in SAMPO and GENIE PC 4 is not needed at all It is merely sufficient to enter the positions and widths of two peaks used anyway for energy calibration It is worth mentioning that shape calibration is difficult to accomplish even without dynamic changes due to counting rate variations The reason is that for shape calibration a spectrum with well distinguished intense single peaks is required which produce peak shapes different from those of weak lines in a real spectrum In contrast HYPERMET calibrates the peak shape within each region by tying up the parameters of weak peaks with those of the strongest peak in the multiplet Of course this constraint can be lifted when necessary e g in the case of a multiplet containing the annihilation peak At the time when HYPERMET was introduced only high speed mainframe computers could be used efficiently due to the time consuming nonlinear fitting involved With some modifications the program became fast enough for use
51. nce each session can be replayed after the fitting is done thus using the log file as a true data base Any problematic region flagged in the list can be viewed and refitted when necessary The residuals can also be displayed in the lower panel to facilitate manual peak insertion in addition to automatic residual search with a pre set number of trials The region boundaries can be modified either numerically or graphically by using the mouse During the fitting or replay parameters characteristic to the region e g boundaries number of peaks found chi square skew background etc are displayed in the right info panel Additional peak parameters can be found on subsequent pages The peak positions energies widths areas and their uncertainties are stored in the fname log data base file The Report menu initiates listing of peaks on screen or printer or in a file At present four peak table formats are supported including the SAMPO 90 PTF file format The latter is widely used in a number of sample analysis programs such as KAYZERO SOLCOL a software package for ko standardisation 6 Starting Hypermet PC System requirements for Hypermet PC Hardware 386 DX CPU or above mathematical co processor 2 MB RAM about 3 MB free hard disk space for Hypermet PC and another 2 MB when the program is running standard VGA video card 640x480 resolution 16 colors or better mouse 3 5 floppy drive for the installation
52. need of a very stable and linear pulse generator but has the disadvantage of being time consuming The other advantage is that this really tests the whole system in the same circumstances where it is used However this procedure can not scan the ADC channels one by one therefore one may wish to perform the integral nonlinearity and the differential nonlinearity measurement using a pulse generator This utility program help present the result of such a measurement for an ADC with up to 16K channel conversion gain The differential nonlinearity specifies the non uniformity of the ADC s channel widths For the measurement a sliding pulser signal e g BNC PB 1 Pulser with LG 1 Ramp Generator should be connected to the ADC input In order to reduce the statistical error the measurement typically takes 10 24 hours to collect sufficient data usually 100 000 counts in each channel The differential linearity expressed in percentage is the maximum deviation of counts in any channel compared to the average number of counts in all channels With the ADC test utility you can easily evaluate such spectra recorded with a sliding pulse train First select the appropriate spectrum formats DAT CHN etc then read the spectrum in Next select Qual Assurance then ADC test from the main menu The program automatically determines the lower and upper limit of a range then calculate the average count for all selected channels as well as the differential
53. of the pixels drawn with the actual colour on Hypermet PC screen The resulting colour should be defined with a triad of values from 0 to 255 for red green and blue colour components respectively The numbers defines the intensity of R G B colour components in the compound colour BMP COLORS black blue green cyan red magenta lightgray brown darkgrey lightblue lightgreen lightcyan lightred lightmagenta yellow white 255 255 255 j wh O 255 255 j cy 0 0 On op BI 128 128 O kh 128 128 128 gr Z255 295 255 JW 128 128 O kh 0 128 128 j 9r 0 239 255i Fpl 0 0 255 j bl 0 0 O fb MOR 192 LI yla 0 0 128 j da 255 255 255 wh 0 0 O y OL 0 0 O bl Ee ck i aw y H D oH aki eenish blue ghtcyan ue ack ghtgray rkblue ite ack ack Reading files changing the display appearance and defining regions of interest Start the program hypc exe First you see a logo on the screen with some elements of the program display the pull down menu on the top and the brown info page on the right At the bottom you can see the position of the cursor and the number of counts in the channel at the cursor position Click on File in the menu or press lt Alt gt F then click on Open or press O The following spectrum file formats are supported by the program System 100 mca files used by CANBERRA S 100 MCAs AccuSpec dat fil
54. on an AT 386 class personal computer The progress of object oriented programming languages for PCs has motivated the development of an interactive version with a user friendly graphics environment and a built in data base Turbo later Borland C was chosen as an appropriate developer s platform An operating environment was developed as a shell to make inclusion of additional program modules easier It reads and writes various MCA spectrum formats such as Canberra 100 AccuSpec Ortec ACE SAMPO 90 ASCII and other formats and displays them on a VGA colour monitor Although the program runs under DOS it offers Windows like features such as mouse controlled pull down menus pop up windows and a rubber band The expanded part of the spectrum appears in the upper half of the screen Spectra up to 16k channels can be processed with unlimited number of peaks spectrum Regions of interest ROIs can also be read in from files or created on the screen Hypermet PC is called from the Eval menu Initial values for peak width and energy calibrations are read in with the spectra or created using the Calibration submenu Although well established default 2 values are provided for the remaining parameters 7 any of them can be modified using the Experts and Fine Tune pop up window In Auto mode the entire spectrum can be evaluated without user intervention Still the whole session will be recorded in a log file which contains all details of the fit He
55. rameters Left ch The left edge of the region you want to fit Right ch The right edge of the region you want to fit Width Initial peak width you can change its default value calculated from the HYPC INI file at CH number Try The number of trials to find peaks in the residual Peak Integration Simple integration of peaks with distorted shape between the boundaries of the painted region Auto Switch to perform automatic fit over the selected region Fix Switch to perform fit with fix region boundaries ROI Switch to perform fit only in the ROIs 12 While the program is running a FITTING text appears in the upper right corner of the screen with a revolving line WARNING In the HYPERMET program 200 channels is the maximum size for a FIXed region which may contain not more than twelve peaks Less than four TRYs are recommended Start fitting by selecting OK After each successful fit the program will display the results graphically in the upper spectrum window and in text form on the info page where you can see the parameters of the fitted region left right left and right boundaries of the fitted region CALIBRATION sources of the width and energy calibrations CORRECTIONS sources of nonlinearity and efficiency corrections TRY number of tries that have been performed PEAK S number of peaks that have been found CHSQ X SIG ratio between the reduced chi square and 1 X sigma limit Fitted Position and Area values of pe
56. rid on This section contains common settings for Quality Assurance modules such as Nonlinearity and Efficiency calibration DegreeOfPol sets the default order for the polynomial function applied in the fit of nonlinearity or efficiency curves Residual sets the default type of the lower residual window for the nonlinearity and efficiency modules Available values are none chi difference for hiding the residual window for displaying the residual in chi units for displaying the residual in keV units respectively Grid controls whether the horizontal and vertical gridlines are displayed by default or not If this variable is set to ON then grid will be switched on automatically PRINTING Printerport 1 This section controls the printing properties Because Hypermet PC prints simple text files without any formatting and sends data directly to one of the parallel ports built in into your computer the section provides only one variable to specify the printer port PrinterPort variable sets the printer port to which Hypermet PC will send data After the equation sign 1 should be set for LPT1 port 2 for LPT2 and so on The following section defines the converting scheme for screen colours when saving screen to a Windows bitmap file using hotkey lt Alt P gt Under the section name one or more of the 16 colour 7 names should be specified as the name of the variable Every variable defines the remapping
57. sed by the program while the second one is its ASCII version Evaluate your spectrum with Hypermet PC Eval menu and save the peaklist in short format with extension PKL Be sure to provide an appropriate energy calibration for the spectrum using a previously created nonlinearity correction file Qual Assurance menu and two well known gamma lines otherwise the qualitative analysis may fail To help this action you can use the STANDARD HLL library list to look up proper calibration lines Leave Eval by selecting Return If you started Hypermet PC anew load your spectrum using the File Open command Start Nuclide ID To start Nuclide ID select the Options Nuclide ID submenu Now you are in the Nuclide ID module where a new menu bar appears File loads your PKL file or returns to the previous section Setting customises various measurement and analysis parameters Analyse starts qualitative or quantitative analysis View lets you browse your analysis results Report creates reports of analysis results Library lets you browse the libraries In the next step load your peak list file PKL using the File menu Before you start analysis 27 Set basic parameters for the spectrum Set parameters with the Setting menu A pull down menu appears Method here several measurement methods can be selected only NAA Thermal is available at present Measurement parameters characterising irradiation measurement and sample
58. sing the up or down arrow key piave Display Roi Eval Options Help SELECT A SPECTRUM xj SOIL DAT Soil 7 sample DAT AccuSpec spectrum DAT l tered in Guar Ortec spectrum CHN 1995 Jun 19 AG110M DAT Sampo90 spectrum SPE AM85264A DAT Genie PC spectrum CNF ELAPSED TIME AM85264B DAT Nucleus spectrum SPM Live 18000 sec BA85211A DAT DAT True 18000 sec Silena spectrum I BA85211B DAT CD85283 DAT COLLECTED AT Cancel 21 21 00 CIMER DAT POOS 06 19 1995 CO85185A DAT CALIBRATION CO85185B DAT ENERGY EE _ eS EO 0 1507 C HYPCDEMONEXAMPLES AG110M DAT ED 0 2500 4 Apr 1997 16 30 66560 bytes a E2 0 000000 WIDTH Unit keV A 0 4317 B 0 0353 W A B SQRT E LENGTH 4096 CH E i i ian EPEN i ER 4 SUM 4906635 hee ett isin eras ath fy MAX 42214 A ad nlp er FRI bounce MIN o DISPLAY FULL SPECTRUM CURSOR 1266 CH 18547 CNT 316 370 keU CORR LOG Figure 1 Selecting input spectrum format setting display format and using the rubber band 10 Managing the Regions of Interests ROIs By pressing the right mouse button and dragging over a portion of the spectrum you can mark ROIs You can also use the lt and gt keys for this purpose Starting from inside of a ROI you can delete one side of the ROL or split the ROI into two pieces A single ROI can be deleted by moving the cursor onto t
59. st ofa Ba spectrum Note the presence of weak K background line last line About the region and the peak databases The aim of the log file is to store all fitting results for later use The region database is created when the HYPERMET session starts Its records are in the memory Only the preferred regions of the REFITs are kept in the database The records are ordered according to their position in the spectrum This database helps arrange the fitted regions in connection with the log file 17 The peak database ordered in ascending peak position is also in the memory This database collects the peak parameters obtained from the fits When you are to make a refit you may set the TRY parameter to 1 because peaks that have been found in the residual search of previous fit s will also be considered in the first attempt You can create the peak database from a report of an other spectrum recorded even with different amplification In this case you have to read the energy of the peaks into the database from the report file The peak database never contains identical peaks The program takes two peaks as identical if the distance between them is less then three times the error of the peak positions If identical peaks appear in more fitted regions the peak with a smaller relative error on its area will be kept in the database You can check which region belongs to the peak using the LogBook Peak View feature An unevaluated peak is always r
60. the analysis Zf an important nuclide is not found in the report check the energy or nonlinearity calibration first If you would like to save your results in an ASCII file choose Report menu The default extension of the output file name is NUI Here is the end of our quick tour in qualitative analysis Let us show a good example of Nuclide ID capabilities For the sake of complexity an artifically mixed standard sample was irradiated and analysed Both the spectrum and the relevant peaklist file can be found on the distribution diskette as FA_3 MCA and FA_3 PKL 29 The elemental composition of the original sample is the following Radionuclide Component mass Other in sample mg detectable Let s investigate some parts of the result file FA_3 NUI First take a look at the Q value s list Analysis data from Nuclide ID 95 11 28 23713 Spectrum f3_a mca Peaklist f3_a pkl Sample code sample 001 Nuclides by their qualifier number Q gt 0 5 Qualifier Peak searched found Q 60Co 0 953 2 2 QO 46Sc 0 951 2 2 QO 95Nb 0 917 1 1 QO 65Zn 0 915 1 1 Q 124Sb 0 908 13 12 Q 95Zr 0 888 2 2 Q 134Cs 0 851 9 9 QO 51Cr 0 848 1 1 Q 233Pa 0 839 9 9 Q 59Fe 0 835 4 4 Q 85Sr 0 803 1 1 Q 122Sb 0 799 4 4 QO 86Rb 0 782 1 1 Q 114mIn 0 730 373 Q 175Yb 0 685 6 5 QO 75Se 0 664 9 7 QO 170Tm 0 648 1 1 QO 114In 0 519 Zip 30 The a
61. the spectrum with the same region boundaries In order to eliminate a number of spurious peaks no peak search is performed in this region and the peak positions are read in from the database The two fitting parameters of FIT and TRY are temporarily switched on and set to one respectively In a normal spectrum channel counts follow Poisson statistics Thus the reciprocal value of counts are used as weighting factors for the least squares fitting For the LFC corrected spectrum the same relative deviation is expected as in the uncorrected spectrum Consequently in order to apply the least square method properly in the corrected spectrum the channel counts of the uncorrected spectrum are used to estimate the deviation of the counts in the corrected spectrum then to calculate the weighting factors So far the experience with the chi square tests confirms the above expectation If the program fails or does not perform properly first check the minimum computer requirements see Introduction If the problem persists please inform us at the address below Dr B la Fazekas Dept of Nuclear Research Institute of Isotopes H 1525 Budapest P O B 77 HUNGARY Email bela alpha0 iki kfki hu Tel 1 395 9073 Telefax 1 395 9075 References 1 G W Phillips and K W Marlow Program HYPERMET for automatic analysis of gamma ray spectra from germanium detectors Nucl Instr Methods 137 1976 525 See also NRL Memorandum Report 3198 N
62. to the previous session Setting sets parameters for fits Fit starts to fit one or more regions Advance helps you to fit an other region or look at fitted regions successively Report makes report in different forms to different output devices LogBook manipulations of the region and peak databases Before you start fitting a spectrum Take a look at the pre set parameters in the setting menu Select Setting from the menu Selecting the Calibration submenu a calibration window appears where user can set the method of energy calibration and define the two point energy and FWHM calibration data points With the Experts submenu you can change the original HYPERMET fitting parameters The explanation of these parameters is beyond the scope of this quick tour for details 11 see the attached document 7 or the built in context sensitive help It is advisable to leave them unchanged unless you are an expert on HYPERMET Some of these can be modified from the Fine Tune submenu through a user friendly interface With the Load and the Save submenus you can save these settings to a text file similar to the HYPC INI or load a previously created set file With the Nonlinearity and the Efficiency menu the corresponding calibration files can be read in Using the nonlinearity calibration file possible systematic errors in gamma energies caused by nonlinear spectrometer componenets are corrected while the efficiency calibration file is used to calcul
63. uent scroll window will offer the names of the standards stored in the NUCLID STD file Select the required standard If more than one standard is included in your measurement you may select them one by one withthe mouse while pushing the lt Ctrl gt key The program automatically identifies those lines in the report file which correspond to the energies of the standards Then it calculates the nonlinearity data their standard deviations and plots these values on the screen with different colours Each data set has its own info page showing the name of the report file used and listing the included standards Above this info page the inscription NONLINEARITY tells what type of calibration curve is being created 24 The cursor can be moved along those plotted data points which belong to the info page currently visible On the cursor info bar at the bottom of the screen the position in channel unit and the data value with its standard deviation are displayed for the current cursor location Any selected data point can be deleted from the evaluation and the screen by pushing the lt DEL gt key even after a fit has been made A complete data set can also be removed at once by choosing the Dataset Remove menu Both ways of deleting initiate a new fit automatically if a first fit has already been performed see below A fit can be performed by clicking on the Calculate menu The resulting curve is plotted as a white line with the standard dev

Hypermet-PC 5.0 for DOS User's Guide - Institute of Isotopes

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