Home

Manual - FAST ComTec

1. fixed voltage in MCS modes only coc oocccnccccnccccncncnnnnononononononannnnanconanonnnno x ramp H PIREWINR triangle sawtooth in steps of 2 44 MV E 0 10V in steps of 2 44 MV oooooocccccncnccnncccnnncncononononnnoncnonncnnnnos 0 10V in steps of bin width 1 255 x bin width T C min 200 ns until change of slope triangle 1 4096 until restart at start value Sawtooth 1 4095 Ne 1LSB A er ne ee ee eee eee eee 1LSB A aeons 5 LSB a 60 mV EEE seba 30 mV 0 3 mV C m SEHE NER gt 2 Vlus to 2 LSB for full scale change 5 us PPP lt 30nVs IN ee o oo A ee 4 LSB typ 1 LSB p 1LSB Appendix 7 5 Appendix Specification Offset error cama 2 7 F Sf typ 0 5 FS Ofsettemp CoOSmIcIient aan 300 uV C Full scale voltage error merursnrunennunennunennnnennnennnnennunennunennnnennnsnnnnennnne 3 FS typ 1 FS Full scale temp coefficient ccoocccocccocccccnnocncccnnconocanocanonos 110 ppm C typ 20 ppm C OUIDUUSIGOW Tate amaia gt 1 V us Settling time for half scale change unse en 5 us
2. The Start toolbar button erases the histogram data and starts a new measurement IMF AST ComTec GmbH 5 17 MCDWIN Software Halt Ll The Halt toolbar button stops a measurement Continue Ip The Continue toolbar button continues a measurement Erase x The Erase toolbar button clears the histogram data IMF AST ComTec GmbH 5 18 Programming and Software Options 6 Programming and Software Options The MCA 3 can be controlled by user written programs using the DLL software interface with example programs for Visual Basic LabVIEW and C that is available as an option Furthermore LINUX software is available as an option containing a driver library and console test program A Windows software similar to the LINUX package that runs without the server using a stand alone DLL is also available on demand for customers who own one of the two available library packages Auto Correlation an optional available expansion of the Server program allows to acquire data into a two dimensional array M i j The channel i j is incremented when in a single sweep the channel i and i j has an event The two dimensional MAP can be viewed in MCDWIN even during the acquisition Use the display options and switch to MAP and later to ISOMETRIC IMF AST ComTec GmbH 6 1 Appendix Performance Characteristics Appendix 7 1 7 1 1 General Memory Basic operating modes Memory modes Memory segments Memory offset Memo
3. numruns 5 Defines the file count for the last run in a measure cycle The last count is the present one plus the numruns number After a file with this count was saved with autoinc on instead of the onstop command the onlast command is executed onlast command The command is executed after a stop caused by a preset reached or trigger instead of the onstop command when the last file count is reached with autoinc on This can be used to finish programmed measure cycles onlast off Switches off the onlast feature Also a manual Stop command switches it off abortloop Aborts smoothly an acquisition loop programmed with onstop and onlast Terminates immediately the running acquisition and executes the onlast command endloop Ends smoothly an acquisition loop programmed with onstop and onlast The presently running acquisition is continued until a preset is reached then the onlast command is executed onstart2 command The command is executed always after a start2 action onstart3 command The command is executed always after a start3 action onstart4 command The command is executed always after a start4 action onstart2 off Switches off the onstart2 feature onstart3 off Switches off the onstart3 feature onstart4 off Switches off the onstart4 feature onstop2 command The command is executed always after a stop of system2 caused by a preset reached This can be
4. 7 1 6 Timebase Reference oscillator Nominal frequency concccoccccnccnnccnncncncnncncnnnnnnnnnnnnnnononos 40 000 MHz Initial accuracy 25 C rrrarennnnennnnennnrrnanennnnennnnnnnnnnn lt 50 ppm Frequency stability in operating temperature range lt t 100 ppm 7 1 7 Data Throughput Listmode data rate to the PCP sssss TBD sec 1 Full Scale 2 depends largely on the computer used IMF AST ComTec GmbH Appendix 7 6 Appendix Specification 7 2 Specification 7 2 1 Absolute Maximum Ratings Input voltage analog signal input PE DOWER OIN zn 10 to 20 V PC pOWer OFF irrita pide 10 to 12 V any CISCKIMINAIOM INPUT serenana dpe da NR d vccf 1 25 V any alg tal KOPO ouibus HU een Res uod etico unde 0 5 to VCC 0 5 V DC current analog signal input PO POWE ON via 17 to 25 mA PC PV ORF Lee 17 mA AanY CISCHIMINGIOMINDUE ai Gr 200 mA MAME ee 20 mA any DAG OUMU verter 25 mA 7 2 2 Recommended Operating Conditions Supply voltage from PC power supply esee 5 V 12 V kemperal retange A E 0 to 50 C oO0Lmnelodd 77777 min 1 KQ to VCC OP min 2 KQ to GND 7 2 3 Power Requirements Supply voltage e ne 5V 0 25V EE EE EN HERREN 12 V 0 6 V Supply current 0 AE aise E E E E S typ 0 55 A max 0 70 A FIZN aA A typ 0 56 A max 0 75 A 7 2 4 Connectors Analog ADC Inp
5. IMF AST ComTec GmbH 3 7 Functional Hardware Description The time for each slope is defined as STEPS x STEPPING TIME Step Bin Width x Number of Steps x Dwell Time The height of each slope beginning at the Start Value is STEPS x STEP SIZE Step Height x Number of Steps Start Value x 2 44mV SAWTOOTH X RAMP STEP SIZE STEPS x STEP SIZE STEPPING TIME START VALUE _ _ STEPS x STEPPING TIME TRIANGLE X RAMP STEP SIZE STEPS x STEP SIZE ke STEPPING TIME START VALUE E EL LI gt STEPS x STEPPING TIME x2 ec Figure 3 12 X Ramp Details A good idea is to stick to the following rules for not more than one ramp cycle per sweep For a sawtooth x ramp e START VALUE LSBs STEPS x STEP SIZE LSBs lt 4095 e STEPPING TIME Time Bins x STEPS s Sweep Range Channels For a triangle x ramp e START VALUE LSBs STEPS x STEP SIZE LSBs lt 4095 e STEPPING TIME Time Bins x STEPS s Sweep Range Channels Where the LSB is 2 44 mV STEPPING TIME is in multiples of Time Bin which is the actual dwell time and Channels is the number of channels in the spectrum Thus you will get just a single ramp per sweep DAC 2 has an output voltage range of 10V with a resolution of 4 88 mV On power up or reset the output is reset to O V IMF AEST ComTec GmbH 3 8 Functional Hardware Description 3 3 Multichannel Analyzer
6. Let s change the display to have a grid and the axis numbered Click on Options Axis Enable Figure 2 13 2 13 the grid and the axis ticks ref Also enable Use Calibration to see the x axis in time units rather than channels Then click OK 1 NIM Nuclear Instrument Modules This is a standard for mechanical and electronic properties of such modules IMF AST ComTec GmbH 2 1 Installation Procedure LI AN Frame St width im e Y y Rectangular width m Font Size Small v Grid yGrid IV Enable IV Enable Width 1 width Style Dot Style Dot xTick yTick Size 4 Width 1 Size 4 Width 1 Top MW Bottom v Left Right v Use Calibration Figure 2 13 Axis Parameters window Options Calibration and make sure Use Calibration is enabled ref Unit is usec and the calibration formula is set to pO p1 x with pO 0 offset and p1 0 1 time bin width Now lets setup the scale calibration feature to see the actual time data in the spectrum Click on Figure 2 14 2 14 Calibration of MC A1 1 18 xj Use Calibration IV Unit usec i Calibration Paints Channel Channel Value Cursor Fi Add gt gt Remove lt lt Y alue Clear All Formula i po pl x Calibrate Save as Cancel Figure 2 14 Calibration of MCA 3 The hardware is initialized properly now and also the
7. caloff 0 000000 Calibration parameter Offset calfact 1 000000 Calibration parameter Factor calunit keV Calibration unit n following commands perform actions and therefore usually are not included in a MCDx CFG ile start Clears the data and starts a new acquisition for system 1 Further execution of the CTL file is suspended until any acquisition stops due to a preset start2 Clears and starts system 2 Further execution is NOT suspended start3 Clears and starts system 3 Further execution is NOT suspended start4 Clears and starts system 4 Further execution is NOT suspended halt otops acquisition of system 1 if one is running IMF AEST ComTec GmbH 4 11 Windows Server Program halt2 Stops acquisition of system 2 if one is running halt3 Stops acquisition of system 3 if one is running halt4 Stops acquisition of system 4 if one is running cont Continues acquisition of system 1 If a time preset is already reached the time preset is prolongated by the value which was valid when the start command was executed Further execution of the CTL file is suspended see start cont2 Continues acquisition of system 2 see start2 cont3 Continues acquisition of system 3 see start3 cont4 Continues acquisition of system 4 see start4 savecnf Writes the settings into MCDA INF MCDB INF MC_A Sets actual multichannel analyzer to MC_A for the rest of the controlfile MC B MC_
8. i e GND Figure 3 9 FEATURE multi I O connector pinning This I O port is fully software controllable and each single 1 bit port is individually configurable It might be used for external alert signals sample changer control status inputs outputs etc IMF AST ComTec GmbH 3 6 Functional Hardware Description 13211410 mim m pe v gt m 9 444 s Abd er vt mn A A ne po T 3 ES amp Ba wo 4 amp 000 oe i T MALA Figure 3 10 Digital I O port configuration resistors As can be seen from Figure 3 11 each individual bit of the digital I O port might be configured as input only tri stated output pull up open drain or driver output small R I O with readback capability Wired OR AND connections are also feasible INTEGRATED CIRCUIT LOGIC 5V 5V DIGIO_OE x DIGIO_OUT x DIGITAL 1 0 x DIGIO_IN x Figure 3 11 FEATURE multi I O port schematic 3 2 9 Analog DAC Outputs Two 12 bit DACs provide analog output voltages DAC 1 has an output voltage range of 0 10 V with a resolution of 2 44 mV On power up or reset the output is reset to 0 V Beside a fixed output voltage it can also be configured in MCS mode as x ramp output with a triangle or sawtooth waveform The x ramp can be defined by a start value the stepping time in multiples of the dwell time the step size and the number of steps until restart sawtooth or change of slope triangle
9. 100 kB sec Lancel Figure 4 4 Replay Settings dialog Enable Replay Mode using the checkbox and specify a Filename of a list file extension LST or search one by pressing Browse In PHA mode it is possible either to choose the complete listfile by selecting ALL or a selected Time Range if the listfile contains time stamps The Replay Speed can be specified in units of 100 kB per sec To Use Modified Settings enable the corresponding checkbox otherwise the original settings are used To start Replay press then Start in the Action menu or the corresponding MCDWIN toolbar icon The MCDWIN menu item in the file menu starts the MCDWIN program if it is not running IMF AST ComTec GmbH 4 3 Windows Server Program Mer aloja Module f z Module f Range ei Je Range ei 32 Active Fart oo Active Part oO hl Dwelltime 100 000 nsec DAC Voltage 0 000 External Clock Manual Clock Abort enable Saftw Skart DAC2 Voltage 0 000 al mi Tagged Spectra Tagged Spectra Sequential Cycles 128 Sequential Cycles 128 Sequences f Sequences Sweep Preset 1 Livetine Preset a Time Preset 10 000 Realtime Preset 10 000 ROI Preset p FOI Preset p ROI o 3132 Inputs 5 uncoaut Iw Int ADC ADL Listmode Listmode write Listfile F Ho Histogram IT High Rate Listmode write Listfile Timestamps No Histogram I History o r
10. MCA 3 Series P7882 Multichannel Analyzer Dual Input Multiscaler User Manual O copyright FAST ComTec GmbH Gr nwalder Weg 28a D 82041 Oberhaching Germany Version 3 4 August 13 2014 Warranty Information Warranty Information FAST ComTec warrants proper operation of this software only when used with software and hardware supplied by FAST ComTec FAST ComTec assumes no responsibility for modifications made to this software by third parties or for the use or reliability of this software if used with hardware or software not supplied by FAST ComTec FAST ComTec makes no other warranty expressed or implied as to the merchantability or fitness for an intended purpose of this software Software License You have purchased the license to use this software not the software itself Since title to this software remains with FAST ComTec you may not sell or transfer this software You must get FAST ComTec s written permission for any exception to this license Backup Copy This software is protected by German Copyright Law and by International Copyright Treaties You have FAST ComTec s express permission to make one archival copy of this software for backup protection You may not otherwise copy this software or any part of it for any other purpose Copyright O 2001 2014 FAST ComTec Communication Technology GmbH D 82041 Oberhaching Germany All rights reserved This manual contains proprietary information no part of it ma
11. MCDWIN will show the spectra in a 2 dimensional view If the checkbox ROI Preset is marked the measurement will be stopped after acquiring more events than specified in the corresponding edit field The events are counted only if they are within the ROI limits i e gt the lower limit and lt the upper limit It is not necessary that this ROI is within the spectra range Another possibility is to acquire data for a given time via the Time Preset The Inputs button opens the Input Thresholds and DAC s dialog box Here you can specify the threshold level at the falling edge of the input signal The combo box provides a choice between standard Fast NIM 0 4 V and customized i e Voltage level set by hand between 2 5 2 5 V scroll bar or edit field Also the voltages for the free usable DAC outputs DAC1 and DAC2 can be set in this dialog MCS Input Thresholds and Ramp DAC 3 xl m Start Impedance Edge Threshold 0405 A YA Fasenim vi 500hm iaa gt Stop Inputi 5405 4 gt Fastnm vi 500hm y falling y Input 2 0 405 Ki gt Fasenim 500hm y CLK Abort Threshold 0 395 A Zf stownim 500hm ina DAC 1 Ramp C Fix Start Value 0 4095 0 Sawtooth Step Height 0 4095 P C Triangle Step Bin Width 11 256 fo Number of Steps 1 4096 4096 DAC 2 Voltage 0 000 4 El gt ROI Input 2 ROl Preset o ROI 0 3132 OK Cance
12. If it is different from the type found the software shows the type found terminates and opens the notepad editor with the MCA3 INI loaded Change then the line type enter the correct type number s and save the file Very important if using the external ADC port is the correct setting of the ADC handshake polarities If you have for example Silena or Laben ADC s remove the semicolon at the first position of the line after Silena ADC s and insert a semicolon in the line after FAST ADC s The file MCA3A CFG MCA3B CFG for more modules contains the default settings It is not necessary to edit this file it is saved automatically Instead of this CFG file any other setup file can be used if its name without the appendix A CFG is used as command line parameter e g MCA3 TEST to load TESTA CFG 4 1 2 Action menu The server program normally is shown as an icon in the taskbar After clicking the icon it is opened to show the status window Using the Start menu item from the action menu a measurement can be started In the status window every second the acquired events the counting rate and the time are shown Clicking the Halt menu item the measurement is stopped and via Continue proceeded IMF AST ComTec GmbH 4 2 Windows Server Program Data Operations E x Module 41 Data specs dat Browse Save at Halt Se ed ho incr mo i calib Add Sub Binary DAT Pts 5 Smooth
13. Invert polarity bit 3 Push Pull output bit 4 7 Input pins 4 7 Trigger System 1 4 bit 8 GOWATCH bit 9 GO High at Start bit 10 GO Low at Stop digval 0 DIG I O output value cycles 10 number of measurements for sequential mode sequences 1 number of sequential cycles mempart 0 memory offset in channels dwelltime defines the dwelltime N 1 x 25 ns dwellunit 0 hex defines the dwelltime unit for the dialog bits 0 3 choice of units O ns 1 usec 2 msec 3 sec bit 4 external clock or manual channel advance syncout f0f sync out hex bit 0 3 SyncOut1 8 11 SyncOut2 bit 7 Inv SyncOut1 bit 15 Inv SyncOut2 OSCLK 1 GATE ABORT ADV 2 TRG SAMPLE 3 COUNT1 4 COUNT2 5 LIVE_INT 6 LIVE_EXT 7 1kHz 8 SCA 9 ON 10 EoBin 11 BIN DIV 12 STEP_CNT 13 GO 14 RAMP_DOWN 15 1 autoinc 0 1 Enable Auto increment of filename datname SPECA dat Filename datname2 SPECB dat Filename for 2 MCS channel savedata 0 bit O save at Halt bit 1 write listfile listmode only bit 2 no Histogram listmode only fmt dat Format ASCII asc Binary dat GANAAS spe smoothpts 5 Number of points to average for a smooth operation caluse 0 bit 071 Use calibration higher bits calibration formula calch0 0 00 First calibration point channel calvl0 0 000000 First calibration point value calch1 100 00 Second calibration point channel calvl1 100 000000 Second calibration point value
14. Specify the number of boards in the MCA3 INI file with a line devices n You can also specify more than one if you have only one physical module The software runs then for the not physical boards in demo mode and it is then possible to load spectra for comparing them in MCDWIN IMF AST ComTec GmbH 4 1 Windows Server Program ij MCA3 INI Notepad E lolx File Edit Format Help Set devices to number of MCA 3 modules plugged in max 4 devices EJ Board type 22 MCA 3 24 MCA 3FADC 26 P7882 33 MCA 3B 34 MCA 3A Bit0O SCA Bitl int ADC Bit2 ext ADC Bit3 listmode Bit4 MCSmode type 20 20 20 20 Slider range for internal ADC adcslider 1024 1024 1024 1024 External ADC Port Control Signal Polarities hex 13 Spon DENB ENC DACC DEAD DRDY DRDY 0 active high DEAD O active high 1 active low DACC 0 active high 1 active low ENC 0 active high 1 active low DENB O active low 1 active high Thezfirst parameter belongs to the first devcice for more devices add parameters seperated with comma Silena ADC s Ba 14 13 334 13 FAST ADC S pol0 d oH active low The MCA 3 memory is read out every updaterate msec if possible updaterate 500 Figure 4 2 MCA3 INI File In the MCA3 INI file the hardware configuration and some settings are defined that can be changed only by editing this file using a text editor like Notepad The board type must be specified
15. Windows Server Program 4 3 Controlling the MCA 3 Windows Server via DDE The MCA3 program can be a server for DDE Dynamic Data Exchange Many Windows software packages can use the DDE standard protocols to communicate with other Windows programs for example GRAMS FAMOS or LabVIEW In the following the DDE capabilities of the MCA3 program are described together with a demo VI Virtual Instrument for LabVIEW It is not recommended to use the DDE protocol for LabVIEW as also a DLL interface is available that is much faster The following should be seen as a general description of the DDE conversation capabilities of the MCA3 program 4 3 1 Open Conversation application MCA3 topic MCA3 Any application that wants to be a client of a DDE server must open the conversation first by specifying an application and a topic name The application name is MCA3 and the topic is MCA3 Ls mca3dde vi MEERUT Figure 4 12 Opening the DDE conversation with the MCA 3 in LabVIEW 4 3 2 DDE Execute The DDE Execute command can be used to perform any action of the MCA3 program Any of the Control command lines described in section 4 4 can be used For example a sequence of control commands saved in a file TEST CTL can be executed by specifying the command RUN TEST CTL The MCA3 program then executes the command and after finishing it sends an Acknowledge message to the DDE client This can be used to synchronize the actions in both applica
16. nm more mare Figure 5 16 Comments dialog box Range Preset Lud This dialog box allows to make all MCA 3 settings ref chapter 4 1 4 IMF AST ComTec GmbH 5 13 IMF AST ComTec GmbH MCs Settings MCDWIN Software E Es ll Module f Range 81 Jz Active Fart Dwelltime 200 000 n r External Clock Manual Clock Abort enable Snfhw Start Tagged Spectra D Sequential Cycles Sequences f Sweep Preset 0 Time Preset 10 000 R lPreset o ROI o 8132 Inputs I Listmode Forte Listfile Mo Histogram Time differences le Pef Chi t Che Setup name MCa3 Cancel Gave Sett Load Sett Figure 5 17 MCA 3 Settings dialog box x 5 14 MCDWIN Software Data Be The Data dialog box allows to perform all the MCA 3 data operations ref chapter 4 1 3 Data Operations BE x Module 41 Data specA dat Browse Save at Halt SEE laad to incr a p cab Add Sub Binary DAT v Pts 5 Smooth Eraze Setup name MCa3 Lancel Save Setting Load Setting Figure 5 18 Data Operations dialog box The System Definition dialog box allows to make all the respective MCA 3 settings See chapter ETS System Definition E E xl GO Line Watch High at Start Low at Stop DiglO Output C Push Pul Open Drain Statue Dig O Invert Value incr at Stop j
17. vi Timeout ms i Dimension 10000 192 Command Data RUN TEST CTL 2000 1500 1000 300 O revel l l 2000 6000 Figure 4 17 Control Panel of the demo VI for LabVIEW 4 3 5 DDE Conversation with GRAMS 386 The following file GRAMSMCA3 CIF can be used to get the MCA3 data into GRAMS 386 via DDE using the Collect menu MCA3 DDE Test Query MCA3 MCA3 DATA Save end spc 1 second 4 4 Controlling the MCA3 Windows Server via DLL The MCA 3 server program provides access to all functions parameters and data via a DLL dynamic link library So the server can be completely controlled by the MCDWIN software that provides all necessary graphic displays In the following some parts of the header and definition files of the DMCA3 DLL are listed that may help an experienced programmer to use the DLL for own applications The arguments item nDevice nDisplay nSystem are only for compatibility with other devices controlled by the MCDWIN software and must be zero NOTE The complete documented sourcecode of the DLL including fundamental VI s and an example VI for LabVIEW and an example Visual Basic and C program is available as an option typedef struct int started aquisition status 1 if running 0 else IMF AST ComTec GmbH 4 19 Windows Server Program double double double double runtime totalsum rolsum totalrate double nettosum double sweeps double dead
18. CH2 ref diff mode MCS bit 10 enable sweep abort MCS bit 12 Use SCA input for Cnt1 MCS roimin 0 ROI lower limit inclusive roimax 8 192 ROI upper limit exclusive rtpreset 1000 Realtimepreset value Seconds Itpreset 1000 Livetimepreset value seconds MCA mode only evpreset 10000 ROlpreset value swpreset 100 Sweep preset value ev2preset 10000 ROI preset value for 2nd MCS spectrum roi2min 1 ROI lower limit inclusive in 2nd MCS spectrum roi2max 8192 ROI upper limit exclusive in 2nd MCS spectrum rampmode 0 Usage of Ramp DAC O fix 1 triangle 2 sawtooth rampstart 0 Ramp start or fix value 0 4095 rampstep 1 Ramp step height rampbin 1 Ramp step bin width ramplen 4096 Ramp no of steps qdacuse 0 enable dac2 output qdac 2048 dac2 value 0 4095 dactuse 0 use ramp dac fixed in MCA mode dac1val 0 fix ramp dac value in MCA mode 0 4095 impsel f impedance edge select hex bit 0 3 50 Ohm Clk Start In1 In2 bit 4 6 rising edge Clk Start In1 In2 thrstart 1716 Threshold value for the trigger start 0 4095 thr1 1716 Threshold value for first MCS input thr2 1716 Threshold value for second MCS input thrcik 1716 Threshold value for Gate Clock Abort input IMF AST ComTec GmbH 4 10 Windows Server Program diguse 0 Usage of DIG I O port hex bit 0 pins 0 3 output status of MCD s bit 1 output digval and increment digval after stop bit 2
19. Duration should not exceed 30 seconds IMF AST ComTec GmbH Appendix 7 9 Appendix Trouble Shooting 7 3 Accessories LEMO BNC adapter cables A ED p yr ADC port connector cable IMF AST ComTec GmbH Appendix 7 10 Appendix Frequently Asked Questions 7 4 Trouble Shooting e System hangs on power up Take care that the board is well seated in the PCI connector Push it towards the bracket to ensure proper connections e PCI device is not properly detected Push the board in the PCI slot towards the bracket to ensure proper connections e Error message MCA 3 not found or FASTMPA device driver not installed at the first start of the software Maybe you did not install the device drivers lf Windows 9x 2000 XP is installed with the MCA 3 board plugged in a wrong device driver for a general PCI communication device may be installed Check it using the Device manager remove the wrong driver and install the correct driver from the WDMDRIV directory on the diskette On Windows NT change to the subdirectory ntdriver on your MCA 3 installation disk and run install bat to install the driver for the MCA 3 board e Error message Communication problem with board Resource conflict at the first start of the software Try another PCI slot and remove all other PCI cards that are not urgently used for the moment Some computers for example most DELL computers have a problem to recognize a second I O port range re
20. Erase Setup name MCa3 i Cancel Save Setting Load Setting Figure 4 3 Data Operations dialog 4 1 3 File menu The Data item in the File menu opens the Data Operations dialog box Mark the checkbox Save at Halt to write a spectrum and a configuration file at the stop of a measurement The filename can be entered If the checkbox auto incr is marked a 3 digit number is appended to the filename that is automatically incremented when starting a new acquisition The format of the data file can be ASCII or binary extension ASC or DAT Click on Save to write a data and configuration file of the actual data with the specified name By pressing Load previously stored data can be loaded or a control file extension CTL executed With Add or Sub a spectrum saved on disk can be added to or subtracted from the present data Eventually resulting negative counts will be truncated to zero Check the checkbox calib to enforce using a calibration and shift the data to be added according to the calibration The Smooth button performs a n point smoothing of the spectrum data The number of points to average can be set with the Pts edit field between 2 and 21 Erase clears the spectrum The menu item File Replay opens the Replay dialog al v Replay Mode Use Modified Settings Filename cw LAS test let Browse fe AJ C Time Range from 0 000 Preset 0 000 Speed 1000
21. Region shape to the rectangle with maximum width Create m The Create menu item creates a new ROI from the current marked Region Delete e By selecting the Delete menu item or the respective icon the current active ROI is deleted and the previously defined ROI is activated Edit With the Edit item a dialog box is opened which allows to edit the ROI list i e create a new one delete change and activate an existing ROI Also the peak values e g energy mass etc for an automatic calibration can be entered here A ROI can be edited and added to the list It can also be made to the Active ROI that is the special ROI that is used by the server program to calculate the events within this ROI and look for an event preset The ROI list can be cleared and can be written to a file with extension CTL which can be directly loaded into the server to restore the ROI list IMF AST ComTec GmbH 5 5 MCDWIN Software Edit Regions of Interest of 7886 1 AAA Edit Regions of Interest of 7886 1 Selected ROI Calibr Peak i Selected FOI ne Peak Min lt x lt Max Ber y lt y lt m al lt x lt x Cancel 2216 2663 0 Clear All Clear Al ze Add Delete Delete Make Active Active AOL Min Mas o 15384 Save as Gave as Figure 5 4 ROI Editing dialog box left Single spectra right 2D spectra The selected ROI can be changed by clicking on it in the ROI list In the MCDWIN sp
22. Section The MCA supports either the external ADC port with upto 16 bit or the internal ADC 3 3 1 Live Real Timer Two 32 bit timers are implemented featuring live and real time measurement with a resolution of 1 ms Each of the timers is presettable in the range of 2 ms to more than 1193 hours 3 3 2 Listmode The onboard memory can also be configured for listmode data acquisition thus working like a large FIFO memory 3 3 3 Spectra offset A digital offset might be applied to the spectra shifting its actual location in the memory Thus multiple spectra might be sequentially accumulated in the onboard memory The offset applied by software selection can be in steps of 64 3 3 4 Event Tagging Spectrum Multiscaling The 8 digital I O ports can be used for spectrum tagging as well Each bit is individually selectable for tagging The enabled TAG bits are used as the most significant memory address bits thus shifting the acquired spectrum corresponding to the actual TAG input Digital I O bit 7 is used as address bit 18 MSB while Digital I O bit 0 is used as address bit 11 When all 8 TAG bits are used the remaining memory range is 512k 256 2048 i e 2k In MCA mode the digital I O port TAG input in this case is sampled when the DEADTIME signal becomes active edge sensitive 3 4 Internal ADC Single Channel Analyzer 3 4 1 General The internal ADC is an ultra fast pulse height analyzing analog to digital co
23. channel advance is supported via the corresponding 5 V discriminator input Please note that the external signal is internally synchronized to the 40 MHz clock An integrated circuitry asures that the minimum cycle time is 150 ns guaranteeing no triggering on fast ringing or successive spikes Please make sure not to under run the minimum bin width requirement of 200 ns in dual input mode For test and experiment setup purposes a manual or software channel advance is provided 3 5 3 Sweep Counter In MCS mode one of the internal 32 bit counters acts as sweep counter lt is incremented on each valid TRIGGER event Sweep presets may be selected in the range of 1 to 2 IMF AST ComTec GmbH 3 11 Functional Hardware Description 3 5 4 Abort a Sweep In some cases it might be desirable to abort a running sweep The ABORT input signal aborts the actual sweep at the end of the actual time bin Thus the minimum ABORT pulse width must be equal or greater than the dwell time 3 5 5 Spectra offset As in MCA mode a digital offset might be applied to the spectra shifting its actual location in the memory Thus multiple spectra might be sequentially accumulated in the onboard memory The offset applied by software selection can be in steps of 64 3 5 6 Spectrum Tagging As in PHA mode the 8 digital I O ports can be used for spectrum tagging Each bit is individually selectable for tagging The enabled TAG bits are used as the most significan
24. devices Universal Serial Bus controllers dah WSD Print Provider Fig 2 5 Device Manager after successfull driver installation IMF AST ComTec GmbH 2 3 Installation Procedure 2 4 Software Installation To install the MCA 3 software on your hard disk insert the installation medium CD or USB Stick and start the installation program setup exe for the 32 bit software or setupx64 exe for the native 64 bit software A directory called C MCA 3 for the 32 bit software or C MCA 3 x64 for the 64 bit software is created on the hard disk and all MCA3 and MCDWIN files are transferred to this directory Drive C is taken as default drive and MCA 3 or MCA 3 x64 as default directory It is not mandatory that the P7888 operating software is located in this directory You may specify another directory during the installation or may copy the files later to any other directory The Setup program has installed one shortcut on the desktop that starts the MCA 3 server program The server program will automatically call the MCDWIN EXE program when it is executed The MCA 3 Server program controls the MCA 3 board but provides no graphics display capability by itself By using the MCDWIN program the user has complete control of the MCA 3 along with the MCDWIN display capabilities If you have more than one MCA 3 modules installed edit the line devices 1 in the file MCA3 INI and enter the number of modules To run the MCA 3 software simply double c
25. display should appear as in Figure 2 15 To start the measurement now click on the Start button IMF AST ComTec GmbH 2 8 Installation Procedure lol x File Window Region Options Action ape ere boet o mer mi x ri jrz rajraj Fs re rz Fa Fa Ftolrttrto 0 D 50 100 350 usec TotalSum Cursor Counts Figure 2 15 MCDWIN properly setup The measurement will begin to run and ends when 100 000 sweeps are done The resulting spectrum should look as in Figure 2 14 The peaks are separated by 100 channels or 10 us The sweep counter shows that exactly 100 000 sweeps have been acquired Each peak should contain 100 000 events one event per sweep ex s Jet Almen i Medos jm Filrzjrajra rs re rz ra r rtott y t Status P7887 1 DFF Filename spec RealTime 61 44 TotalSum 10 000 000 700000 2 650000 600000 550000 500000 Sweeps 1000000 00 r Starts 1000000 00 450000 400000 350000 300000 250000 200000 150000 100000 50000 0 10000 10100 10200 10300 10400 10500 10600 10700 10800 10900 11000 nsec TotalSum 10000000 Cursor Cou RegionRect D 0 0 0 Acquisition OFF Figure 2 16 Resulting spectrum of the basic measurement IMF AST ComTec GmbH 2 9 Installation Procedure 2 5 3 Signal Setup of the analog input The analog input can be used for pulse height analysis using the internal ADC or for MCS mode using t
26. pulse height analysis PHA mode it is optimized for Gaussian shaped pulses with shaping times in the range of 250 ns 25 us In MCS mode the associated single channel analyzer can also be used for counting ref chapter 3 4 4 WARNING Take care not to exceed the maximum input values as described in the technical data ref chapter 3 2 3 GATE ADV ABORT Input This input is used for either e GATE the internal ADC e external channel ADVance e MCS sweep ABORT The GATE ADV ABORT input is a LEMO type connector on the mounting bracket It accepts signals in the range of 5 V and provides a bandwidth of 100 MHz The input impedance is a selectable 1kQ or 50 Q The threshold voltage is adjustable in the range of 2 5 V For clean switching and oscillation free operation the slew rate should be higher than 0 5 V us The input polarity is also software selectable Refer Figure 3 4 for a simplified circuit schematic Diodes are provided for overvoltage protection IMF AST ComTec GmbH 3 2 Functional Hardware Description 5V 1k0 4p 4 i I gt gt o6R THRESHOLD POLARITY Figure 3 4 Discriminator Inputs simplified Schematic WARNING Take care not to exceed the maximum input values as described in the technical data ref chapter 7 2 1 The discriminator signals as detected by the input circuitry may be monitored online with an oscilloscope on the SYNC outputs Thus optimization of the threshold vo
27. typedef struct unsigned long HUGE s0 pointer to spectrum unsigned long far region pointer to regions unsigned char far comment0 l pointer to Strings double far cnt T p inter to counters HANDLE hs0 HANDLE hrg HANDLE hem HANDLE hct ACQDATA IMF AST ComTec GmbH 4 21 Windows Server Program typedef struct int nDevices Number of spectra number of modules int nDisplays Number of active displays 0 nDevices int nSystems Number of systems 0 4 int bRemote 1 if server controlled by MCDWIN unsigned int sys System definition word bit0 0 bitl 0 MCDHO in system 1 f bit sl bitls0os MCD 0 in system 2 E Dit0s0 Drtlsls MCD 0 in System 3 bitO 1 bitl 1 MCD 0 in system 4 bit2 0 bit3 0 MCD 1 in system 1 bit6 1 bit7 1 MCD 3 in system 4 ACODEF FUNCTION PROTOTYPES do not change BOOL APIENTRY DllMain HANDLE hInst DWORD ul reason being called LPVOID lpReserved VOID APIENTRY StoreSettingData ACQSETTING FAR Setting int nDisplay Stores Settings into the DLL int APIENTRY GetSettingData ACQSETTING FAR Setting int nDisplay Get Settings stored in the DLL VOID APIENTRY StoreExtSettingData EXTACQSETTING FAR Setting int nDisplay Stores extended Settings into the DLL int APIENTRY GetExtSettingData EXTACQSETTING FAR Setting int nDisplay Get extended Settings stored in the DLL VOID APIENTRY StoreStatusData ACOSTATU
28. units of 25 nsec The minimum dwelltime is 100 ns in MCS mode or 200 ns in 2MCS mode The option External clock respective Manual clock is only in MCS mode available If Softw Start is marked no start signal is necessary The time counter is masked corresponding to the chosen range and the higher bits are not evaluated The signal for the synchronisation of the experiment can be obtained from one of the two Sync Out outputs Via the Sync out combo boxes the Synchronisation Monitor signals specified in chapter can be selected Gate Abort Adv TRG SAMPLE COUNT1 COUNT2 LIVE INT LIVE EXT 1kHz SCA ON EoBin BinDiv STEP CNT GO RAMP DOWN 1 and 40 MHz as a synchronized time signal in MCS mode Dec 23 2004 In MCA listmode it is now possible to record and display a History of the ADC data like a transient recorder see Fig 4 5 The Length of the history can be defined arbitrarily INFAST ont Windows Server Program A Wrap around mode allows to get a repeated view by overwriting old data In MCA listmode now optional timestamps can be written into the listfile Mar 21 2005 a new checkbox Timestamps in the settings dialog in the listmode box allows to dump the realtime and livetime counters into the listfile every time when ADC event data are transfered see chapter In MCS List mode an acquisition mode Time differences is implemented for analyzing pulse trails In this mode the first stop event is used as a reference point a
29. 2 for loops with onstop4 Switches off the onlast2 feature Also a manual Stop2 command Switches it off Switches off the onlast3 feature Also a manual Stop3 ommand switches it off Switches off the onlast4 feature Also a manual Stop4 ommand Switches it off Terminates immediately the running acquisition and executes the onlast2 command Terminates immediately the running acquisition and executes the onlast3 command Terminates immediately the running acquisition and executes the onlast4 command The presently running acquisition is continued until a preset is reached then the onlast2 command is executed The presently running acquisition is continued until a preset is reached then the onlast3 command is executed The presently running acquisition is continued until a preset is reached then the onlast4 command is executed Executes a Windows program or PIF file Example exec notepad test ctl opens the notepad editor and loads test ctl Deletes all ROIs in the active Display of MCDWIN or the active multichannel analyzer if MCDWIN is not running oimilar to the deleteallrois command but using the argument allows to specify which spectrum should be treated independently of which child window is activated in MCDWIN Makes a single peak Gaussian fit for all ROIs in the active Display of MCDWIN and dumps the result into a logfile This is per
30. 2 2 Installation Procedure Select the folder that contains drivers for your hardware 4 3 Removable Disk F gt Js catalog de htm Le manuals d SanDisk 4 wdmdriv di server03 d vista de win2k AMET di i Fig 2 4 Choosing the right folder Please don t go deeper into the folder structure the processor type x86 x64 etc is found automatically After pressing OK the driver installation will proceed The device manager will then show a FAST ComTec MPA 3 MCA3 and P7882 P7888 Driver in a class Multifunction adapters as shown in Fig 2 5 File Action View Help es zig Gi 22 Computer Management Local 4 System Tools 3 Task Scheduler 3 Event Viewer gt fa Shared Folders He Local Users and Groups 5 Performance y Device Manager 4 Storage f Disk Management gt Ty Services and Applications iS pU IS 4 y Wowi gt amp Audio inputs and outputs gt Computer gt a Disk drives amp Display adapters E DVD CD ROM drives ey Floppy disk drives 3 Floppy drive controllers 05 Human Interface Devices C IDE ATA ATAPI controllers I Imaging devices Keyboards n Mice and other pointing devices amp Monitors Ly Multifunction adapters gt amp Network adapters YY Ports COM amp LPT duh Print queues duh Printers Dl Processors T Sensors Software devices Sound video and game controllers More Actions Storage controllers System
31. 7882 Multiscalers in such a host computer system It has been determined that systems that implement PnP BIOS and contain only fully compliant PnP boards and drivers operate properly However systems that do not have a PnP BIOS installed or contain hardware or software drivers which are not PnP compatible may not successfully execute PnP initialization This can render the MCA 3 P7882 Series inoperable It is beyond the ability of FAST ComTec s hardware or software to force a non PnP system to operate MCA 3 Series Multichannel Analyzers P7882 Multiscalers IMF AST ComTec GmbH HI IMPORTANT NOTEs IMPORTANT NOTEs This manual is written for all of the several options of MCA 3 P7882 boards available Due to this fact most of the time the manual will talk of MCA 3 In case you purchased a P7882 please replace MCA 3 by P7882 in your mind The MCA 3 Series Multichannel Analyzers P7882 Multiscalers are available in a number of optional versions Thus depending on the version purchased some features described in this manual may or may not be implemented functioning on your particular board Some models in the MCA 3 series i e P7882 MCA 3 MCA 3FADC offer the Multichannel scaling MCS mode and some i e MCA 3 MCA 3FADC MCA 3A the pulse height analysis PHA mode The MCS mode is used for recording into appropriate time bins the time of arrival of pulses at the STOP inputs relative to the START input over a specified ti
32. AG to START FET BE 0 EE 65 ns thold DIG 1 O EEE EEE 65 ns MCS Noise Spectrum 35000000 34950000 34900000 nof MEN LL ZZ II 34800000 34750000 nci coole i EE ESN DE SF A ni 34700000 34650000 34600000 coo BEEN 34500000 Figure 7 5 MCS Linearity Measurement MCS Differental Linearity 3 0 5 0 4 0 3 0 2 0 1 0 0 0 1 0 2 0 3 0 4 0 5 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 Figure 7 6 MCS Differential Linearity Plot IMF AST ComTec GmbH Appendix 7 4 Appendix Performance Characteristics 16 0 14 0 12 0 10 0 ds 2 Lx e 7o Cp D oo 2 3 a9 gt o o v i v d Y o o 2 MCS DNL Distribution 5 o 2 o EZ o o o 2 o QS OW 499 499 2919 90 oF aS B ue ur up N e My Q Go M Qo o 70 O o o o o 2 DD Figure 7 7 MCS Differential Linearity Distribution 7 1 5 Digital to Analog Converters DAC 1 RAMP Operating modes X Ramp modes Ramp start value Ramp step size Ramp stepping time Ramp steps Relative accuracy Differential nonlinearity Offset error Full scale voltage error Full scale voltage stability Full scale temp coefficient Output slew rate Settling time Digital glitch impulse DAC 2 Relative accuracy Differential nonlinearity IMF AST ComTec GmbH
33. All lt lt All lt lt All lt lt All Start with DiglO Input Digd Clear before Start i Cancel Save Sett Remote Figure 4 10 System Definition dialog box two MCA 3 cards Watch High at Start Low at Stop DiglO Output Push Pull f Open Drain Status Dig 0 3 Invert Value incr at Stop o In the shown setting a single system is formed The two modules MC_A and MC B are combined System 1 can be started stopped erased and continued with the respective commands in the Action 1 menu It is also possible for example to form two independent systems 1 and 2 Click on the button labeled lt lt All below the list box System1 to remove all units from system 1 They are then shown in the Not active list box Then select unit A and click on the button labeled gt gt below the System 1 list box to include it into system 1 and perform the respective action for unit B and System 2 OK accepts all settings Cancel rejects all changes Pressing Save Settings stores all settings in the file MCA3A CFG using the control language see the following section IMF AST ComTec GmbH 4 7 Windows Server Program This file is loaded at program start automatically and the parameters set Together with each data file a header file with extension mcd is saved This header also contains all settings and in addition some information like the date and time of the measurement and commen
34. D Sets actual multichannel analyzer to MC B MC D for the rest of the controlfile savedat Saves data of actual multichannel analyzer An existing file Is overwritten pushname pushes the actual filename on an internal stack that can hold 4 names popname pops the last filename from the internal stack load Loads data of actual multichannel analyzer the filename must be specified before with a command datname add Adds data into actual multichannel analyzer the filename must be specified before with a command datname sub oubtracts data from actual multichannel analyzer the filename must be specified before with a command datname smooth omoothes the data in actual multichannel analyzer eras Clears the data of system 1 eras2 Clears the data of system 2 eras3 Clears the data of system 3 eras4 Clears the data of system 4 exit Exits the server and MCDWIN programs alert Message Displays a Messagebox containing Message and an OK button that must be pressed before execution can continue waitinfo 5000 Message Displays a Messagebox containing Message an OK and an END button After the specified time 5000 msec the Messagebox vanishes and execution continues OK continues immediately END escapes execution beep Makes a beep The character may be replaced with or left empty The corresponding sound is defined in the WIN INI file in the sounds sec
35. ENTRY HardwareDlg int item Calls the Settings dialog box VOID APIENTRY UnregisterClient void Clears remote mode from MCDWIN VOID APIENTRY DestroyClient void Close MCDWIN UINT APIENTRY ClientExec HWND ServerWnd Execute the Client MCDWIN EXE int APIENTRY LVGetDat unsigned long HUGE datp int nDisplay Copies the spectrum to an array VOID APIENTRY RunCmd int nDisplay LPSTR Cmd Executes command int APIENTRY LVGetRoi unsigned long FAR roip int nDisplay Copies the ROI boundaries to an array IMF AST ComTec GmbH 4 22 Windows Server Program int APIENTRY LVGetCnt double far cntp int nDisplay Copies Cnt numbers to an array int APIENTRY LVGetStr char far strp int nDisplay Copies strings to an array EXPORTS Functions in dmca3 c StoreSettingData 2 GetSettingData 3 StoreStatusData 4 GetStatusData 5 Start 6 Halt 7 Continue 8 NewSetting 9 ServExec 10 StoreData 11 GetData 12 GetSpec 13 SaveSetting 14 GetStatus 15 Erase 16 SaveData 17 GetBlock 18 StoreDefData 19 GetDefData 20 LoadData 21 NewData 22 HardwareDlg 23 UnregisterClient 24 DestroyClient 25 ClientExec 26 LVGetDat 2 7 RunCmd 28 AddData 29 LVGetRoi 30 LVGetCnt 31 LVGetStr 32 SubData 33 Smooth 34 StoreExtSettingData 35 GetExtSettingData 36 IMF AEST ComTec GmbH 4 23 MCDWIN Software 5 MCDWIN Software The window of the MCDWIN program is shown here lt en
36. Figure 2 10 MCS Settings window Select the Start and Stop inputs and set them to Customized and a voltage level corresponding to your signal amplitude e g 0 800 V ref Figure 2 11 and Figure 2 12 For best results use a 50 O Impedance setting You also may select either edge settings Now click OK to get back to the MCS Settings window Again click OK IMF AST ComTec GmbH 2 6 Installation Procedure MCS Input Thresholds and Ramp DAC x Start 1 Impedance Edge Threshold 0 800 4 Sri customized y 500hm faing Stop 11 PP E Input 0 800 af L PA Customized 500hm gt falling CLK Abort gt Threshold 0405 xt Y Fastnm 500hm gt fang DAC 1 Ramp Fix Start Value 0 4095 o C Sawtooth C Triangle DAC2 Voltage 0 000 4 E gt ROI Input 2 j IV ROI Preset fo ROH o 8192 Cancel Figure 2 11 MCS Input Threshold window To verify the quality of the discriminated signals you might select SAMPLE TRG resp COUNT 1 on the Fast NI SYNC output ref Figure 2 10 and connect the SYNC 1 output to an oscilloscope Take care to terminate the cable with 50 Q Now you can online watch the effect of changing the input thresholds 1 6V START ISTOP THRESHOLD 0 8V J INPUT SIGNAL 0 0V DISCRIMINATED Figure 2 12 START STOP discriminator levels
37. IO 6 DIO5 DIO4 corresponding to Y axis levels of 1 3 and 5 the minimum Tagged Spectra setting needed would be 5 For the sweep range of 8k bits 13 through 17 DIO2 through DIO6 will need to be used as the tag bits The resulting tag bit patterns produced would be 00111 01111 and 10111 DIO 6 DIO5 DIO4 DIOS DIO2 corresponding to Y axis levels of 7 15 and 23 the minimum Tagged Spectra setting would be IMF AST ComTec GmbH Appendix 7 12 Appendix Personal Notes 23 The results of these settings is a 2D display with with 3 spectra corresponding to the 3 sources and a number of empty spectra Y axis levels The shortest sweep range setting using the tag bit feature is 2048 channels 2k 11 bits leaving a maximum of 8 bits for tags 256 total in 1 input MCS mode and 7 bits for tags 128 total in 2 input MCS mode Similarly you would need to set the Tagged Spectra setting appropriately 7 tag bits used to accommodate using the 2k range while using only DIO 5 and 6 With this technique you won t need to rewire your cabling and only need to change software settings Also should mention that the DiglO Output setting should be changed to Open Drain in the System Definintion dialog window Options gt System to get the DIO s to work as stated as inputs System Definition A E x PiglO Output 3L Line Push Pul pen Dran T Match Status Dig O Invert High at Start Value in
38. Nm 1 dme seer A mab rre 4448 A T AN SAL er IFAI o Figure 2 1 External ADC port connector If purchased install the external ADC port connector now In some computer cases special fittings are available for some types of D SUB connectors These are particularly useful to save slots for additional plug in boards Otherwise mount the housing bracket with the 25 pin D SUB connector in another available slot of your computer Plug in the 26 pin socket connector at the end of the ribbon cable into the 26 pin four walled header named ADC PORT on the MCA 3 PCI board IMF AST ComTec GmbH 2 1 Installation Procedure 2 3 Driver Installation To install the driver please start the device manager You can do it by right clicking the computer shortcut on the desktop and selecting Manage from the drop down menu then Device Manager Another way is to select in the Start Menu Settings Control Panel then System Device Manager File Action View Help e 2 BE a Computer Management Local E a System Tools gt amp Audio inputs and outputs Q Task Scheduler Computer 8 Event Viewer a Disk drives i Shared Folders A Display adapters amp Local Users and Groups E DVD CD ROM drives S Performance 3 Floppy disk drives d Device Manager e Floppy drive controllers 4 Storage 1 Human Interface Devices f Disk Management gt Gg IDE ATA ATAPI controllers Services a
39. S FAR Status int nDisplay Store the Status into the DLL int APIENTRY GetStatusData ACOSTATUS FAR Status int nDisplay Get the Status VOID APIENTRY Start int nSystem Start VOID APIENTRY Halt int nSystem Halt VOID APIENTRY Continue int nSystem Continue VOID APIENTRY NewSetting int nDevice Indicate new Settings to Server UINT APIENTRY ServExec HWND ClientWnd Execute the Server WLAP EXE VOID APIENTRY StoreData ACODATA FAR Data int nDisplay Stores Data pointers into the DLL int APIENTRY GetData ACODATA FAR Data int nDisplay Get Data pointers long APIENTRY GetSpec long 1 int nDisplay Set a spectrum value VOID APIENTRY SaveSetting void Save Settings int APIENTRY GetStatus int nDevice Request actual Status from Server VOID APIENTRY Erase int nSystem Erase spectrum VOID APIENTRY SaveData int nDevice Saves data VOID APIENTRY GetBlock long FAR hist int start int end int step int nDisplay Get a block of spectrum data VOID APIENTRY StoreDefData ACODEF FAR Def Store System Definition into DLL int APIENTRY GetDefData ACODEF FAR Def Get System Definition VOID APIENTRY LoadData int nDisplay Loads data VOID APIENTRY AddData int nDisplay Adds data VOID APIENTRY SubData int nDisplay Subtracts data VOID APIENTRY Smooth int nDisplay Smooth data VOID APIENTRY NewData void Indicate new ROI or string Data VOID API
40. a Start with DiglO Input Dig 4 Clear before Start Cancel Save Sett Remote Figure 5 19 System Definition dialog box IMF AST ComTec GmbH 5 15 MCDWIN Software T The menu item Options Replay opens the Replay settings dialog ref chapter 4 1 3 xi v Replay Mode Use Modified Settings Filename cw 5 3 test st Browse fe AJ C Time Range from 0 000 Preset 0 000 speed 17000 TOO kB sec Tool Bar Selecting the Tool Bar Menu item opens the Tool Bar Dialog Box It allows to arrange the icons in the Tool Bar Tool Bar f Enable Iw Help over Toolbar W Help over Statusbar Commands Customized Toolbar u Separator 4 Add s m Separator 4 tdi New line gt gt Changes lt E Open Mew 2 Oper New _ dmebo El Tile Hemovet4 EI Tile Cascade E Remove lk z E Cancel Funktion keys Figure 5 21 Tool Bar dialog box If it is enabled an array of icons in the MCDWIN Menu is shown Clicking the left mouse button with the cursor positioned on an icon the user can perform a corresponding MCDWIN Menu command very quick It is also possible to include icons for free programmable function keys F1 F12 into the Toolbar The function keys can be programmed in the Function keys dialog It can be accessed either by clicking the Function keys button or directly from the options menu IMF AST ComTec GmbH 5 16 MCDWIN Software Pr
41. ables the full control of the MCA 3 card via the server program to perform measurements save data and to show the data online in several windows The server program MCA3 EXE automatically starts MCDWIN If you try to start MCDWIN in advance to the server a message box warns that you should start the server first fea MCDWIN File Window Region Options Action ess Tet aja d es gt jajja Flrzlralra rsirs rz ro rejrirnire P7887 1 5000 2 0 0 TotalS um 1561015 Cursor 7750 1953 5nsec Counts 136 ROIS um 143686 Net 96741 ROI 0003 10061 10417 Regionhect 10061 10418 0 5001 amp cquisition DFF Figure 5 1 MCDWIN main window A status window at the left side gives all information about the status of the MCA 3 A toolbar provides fast access to many used functions in the menu A status bar at the bottom gives help about the meaning of the toolbar icons A cursor appears when clicking the left mouse button inside the graphics area To get rid of the cursor make a double click with the right mouse button outside the graphics area To define a region press the right mouse button and while keeping the button pressed drag a rectangle In zoomed state a scrollbar appears that allows to scroll through the spectrum MCDWIN has also viewing capabilities for two dimensional spectra A single spectrum can be converted into a two dimensional one by specifying the x dimension in the display
42. ange of 65k bits 0 15 used bits 16 and 17 DIO 5 and 6 get used If you were to use bit 16 and 17 DIO 5 and 6 and the 65k range the tag bit patterns of 00 01 and 10 DIO6 DIOS will be produced corresponding to the Y axis levels of 0 1 and 2 your source 1 2 and 3 respectively If you were to only change the sweep range to 32k Tagged Spectra remains at 3 bits 15 and 16 DIO 4 and 5 get used as the tag bits and you will only be toggling bit 16 bit 15 is pulled up if no connection is made to it The resulting tag bit patterns of 01 11 and 01 DIO5 DIO4 is produced corresponding to 1 3 and 1 on the Y axis which of course is not what you want source 1 and 3 get combined and source 2 not displayed Likewise if you change the sweep range to 8k the resulting tag bit pattern of 11 11 11 DIO 2 DIO3 bits 13 and 14 pulled up with no connections is produced with all sources combined in one spectra Y axis level of 3 and also not displayed To overcome this error when changing sweep length ranges and using only bit 16 and 17 DIO 5 and 6 the Tagged Spectra setting needs to correspondingly change to accommodate the differing number bits used while including bits 16 and 17 in the make up of the tag bits For the sweep range of 32k bits 15 16 and 17 DIO 4 5 and 6 will need to be used as the tag bits With toggling of bits 16 and 17 and bit 15 held high the resulting tag bit patterns produced would be 001 011 and 101 D
43. ap around Setup name Setup name MCa3 cas 1 Cancel Save Sett Load Sett i Cancel Save Sett Load Sett Time differences fe Ref Eh Figure 4 5 MCS and MCA Settings dialog 4 1 4 Settings dialog The Hardware item in the Settings menu opens the MCA 3 Settings dialog box Here depending on the mode of operation MCS or MCA PHA parameters like Presets Range parameters Dwell time etc can be set In the edit field Range the length of the spectrum can be chosen between 64 and 524288 in 2MCS mode up to 262144 If the checkbox ROlpreset is marked the measurement will be stopped after acquiring more events than specified in the corresponding edit field The events are counted only if they are within the ROI limits i e gt the lower limit and lt the upper limit Another possibility is to acquire data for a given real time via the Realtime Preset or a given live time via the Livetime Preset A measurement will be stopped if the corresponding checkbox is marked Note that the start of the acquired spectrum in the MCA 3 memory can be defined in the Active Part drop down listbox Also the ERASE LOAD and SAVEDAT commands make an effect only on this part of the MCA 3 memory The range parameter defines the length of the spectrum starting from the active part The actual displayed memorysize in MCDWIN may be greater if a nonzero Active Part is specified Dwelltime is the width of a timebin in MCS mode it can be entered in
44. at these numbers are in the same line seperated by a tab At the beginning the memory address is the channel number but it wraps around when the end of the board RAM is reached In MCS2 mode for each dwell time 3 numbers are recorded the memory address and the numbers counted from both inputs In ASCII format these numbers are in the same line seperated by tabs 4 2 Control Language A sequence of commands that is stored in a file with extension CTL can be executed by the MCA 3 server program with the Load command A lot of these commands are used in the configuration file MCA3A CFG also the header files with extension mcd contain such commands to set the parameters Each command starts at the beginning of a new line with a typical keyword Any further characters in a line may contain a value or a comment Following methods are available to execute commands e Load the command file using the Load command in the file menu e Enable remote mode in the server and send commands via the serial connection The COMCTL DLL is necessary which is part of the optional available MCDLAN software e Open a DDE connection and send the commands via DDE as described in chapter The application name for opening the DDE connection with the standard MCA 3 server program MCA3 EXE is MCA3 the topic is MCA3 Implemented are the DDE Execute to perform any command and the DDE Request with items RANGE and DATA e Send the commands over a TCP IP net using a
45. cale RGB is recommended also for black laser printers Some info lines containing date filename and title can be added For each page a temporary file PRINT1 WMF PRINT2 WMF will be created This file is in Windows Metafile format and can be exported into some other Windows applications Paper zones v Enable Vert Horiz 03 o Tickness factor Vert Horiz or 20 v Fontsize factor 1 00 P7887 1 P7887 2 Colors C Bw RGB Add Removes Change C Gray No ID Page Left Top width TE 0017001 001 400 143 1400 667 C inch cm 002 002 001 400 1097 1400 667 info v Date IV FileName Paper margins Zone margins Title Horiz Vertic Left Right Top Bottom P Peel 0 43 0 52 20 00 110 00 15 00 15 00 IV Frame Change Comment 1 2 1 4 00 fro 97 14 00 E 67 Comment 2 Comment 3 or _Cancel Figure 5 3 Print dialog box NOTE If printing takes a long time and disk activity is high please note the following The picture for the printing is first built in the memory but it may need quite a lot of memory if the printer resolution is high and therefore Windows makes intense virtual memory swapping to disk if for example only 8 MB RAM are available Therefore it is recommended never use a 600 dpi printer driver for the printout of spectra For example for an HP Laser 4 install the PCL driver and us
46. chronization of electronic devices previously often not possible IMF AST ComTec GmbH 3 5 Functional Hardware Description GO LINE i Er If f AAA Figure 3 7 GO line connector The GO line is a system wide open drain wired AND signal that can start and stop a measurement This line is also available on the Multi I O port connector ref Figure 3 9 The GO line may be enabled disabled set and reset by the software INTEGRATED CIRCUIT LOGIC 5V GO_OUT GO LINE Figure 3 8 GO line logic circuit schematic When watching of the GO line is enabled a low voltage will halt the measurement When output to the GO line is enabled starting a measurement will release high impedance output the GO line whereas a halt of the measurement will pull down the GO line to a low state Since it is an open drain output wired AND connection with other devices is possible 3 2 8 FEATURE Multi I O Connector A very versatile 8 bit digital I O port is implemented on the female 15 pin high density D SUB connector fixed on the mounting bracket Since the corresponding resistors are socket mounted ref Figure 3 10 they can be easily user configured in a most flexible way 10 RAMP DAC 1 OUT FAE TEV DAC 2 OUT GND a SYNC 2 OUT DIG IO 7 Te GONE DIG 10 6 ez DIG 10 5 DIG 104 te 0 DIG IO 3 e DIG 102 DIG 101 eg e DIG 100
47. cr at Stop lo c Low at Stop Stark Stop with DiglO Input Dig4 T Clear before Start Start only Lancel Save Sett Remote IMF AST ComTec GmbH Appendix 7 13 Appendix Personal Notes 7 6 Personal Notes IMF AST ComTec GmbH Appendix 7 14
48. ctive icon opens the Colors dialog box IMF AST ComTec GmbH 5 7 MCDWIN Software EE TAE En Display iter Desktop Window Set Display item color C Palette colors Color numbers Palette bd Save Saves UK Figure 5 7 Colors dialog box It changes the palette or Display element color depending on which mode is chosen The current color and palette setup may be saved or a new one can be loaded Physical Color 5election Red Green 1102 Blue u 2173 Physical palette color 193 256 256 Figure 5 8 Color Palette dialog box To change on of the colors select Palette colors and click on one of the colors In the Color Palette dialog box the RGB values can be edited or for a 256 color video driver one of the Physical palette colors can be chosen IMF AST ComTec GmbH 5 8 MCDWIN Software Display EL x The Display menu item or the corresponding icon opens for single spectra the Single view dialog box Here the graphic display mode of single spectra can be chosen The Type combo box gives a choice between dot histogram spline and line The Symbol combo box gives a choice between None Circle Triangle down Triangle up Cross Snow flake and Diamond The symbols can be filled by checking Fill error bars can be displayed by checking Error Bar Dot means that each spectra point is shown as a small rectangle or the specified symbol th
49. d for a large range of input signals Two of them provide extremely high input bandwidth allowing for count rates in MCS mode of typically well over 200 MHz EXTERNAL ADC PORT GO LINE ANALOG ADC IN m GATE ADV ABORT IN CES NS TRG START SAMPLE IN se COUNT STOP 1 IN meu gt COUNT STOP 2 IN SYNC 1 OUT Fo ounce ti D o Na y FEATURE I O DIL 16 PIN I O SERIES SIL 9 PIN PULL UP RESISTOR NETWORKS Figure 3 1 MCA 3 PCI board Besides two SYNC outputs with a large variety of output signal options all software selectable and the GO line compatible to other FAST products allow for easy synchronization or triggering of other measurement equipment Furthermore a versatile user configurable 8 bit digital I O port allows for a whole bunch of experimental control monitor or whatsoever other tasks Moreover the 8 bit digital I O port can be used for spectra tagging to allow for multi detector configurations sequential data acquisition etc Additionally two 12 bit analog voltage outputs are available One of it can be configured to generate a sawtooth or triangle x ramp voltage synchronous to the MCS time sweep 3 2 Connectors 3 2 1 External ADC Port The external ADC input port is a standard nuclear ADC interface that supports up to 16 bit 64k ADCs TOFs etc The used Data Ready DRDY Data Accepted DACC handshake is common to a large number of devices available The principle ti
50. d here Slice El C const o Create y const 10 Figure 5 11 Slice dialog box From the MAP View dialog it is possible to change to Single view by clicking gt gt Single or change to Isometric View by clicking gt gt Isometric Isometric View EN Graphic Type View angles Precezsion 0 00 deg Tilt 35 00 deg Height 60 00 x Monochrome Iv Hidden histogram Cancel gt gt Map Figure 5 12 Isometric View dialog box IMF AST ComTec GmbH 5 10 MCDWIN Software In isometric mode several single spectra are drawn behind each other The Precession angle around the vertical axis can be chosen in multiples of 90 degrees The Tilt angle is between the x and y axis and can be chosen between 15 and 89 degrees The Height specifies the percentage of the z axis length respective to the whole drawing it can be entered between 0 and 99 With hidden it can be specified whether the hidden parts are not drawn If Monochrome is checked the spectra are painted monochrome otherwise in color Axis By the Axis menu item or the respective icon the Axis Parameters dialog box is opened Frame width fi Style y Rectangular sido E word T Enable Width i Style Dor r Tick Size f wide fl alla WE Grid Enable width 1 Style loot H Tick Size Ja Width ho M Top Bottom Use Calibration Cancel Figure 5 13 Ax
51. dth of typically well over 200 MHz The input impedance is individually selectable between 1 kO and 50 O The threshold voltage is adjustable in the range of 2 5 V For clean switching and oscillation free operation the slew rate should be higher than 0 5 V us The input polarity is also software selectable Refer Figure 3 5 for a simplified circuit schematic Diodes are provided for overvoltage protection WARNING Take care not to exceed the maximum input values as described in the technical data ref chapter 5V A 1k0 4p COUNT V User THRESHOLD 1 5V A 1k0 4p COUNT2 7 gt i T gt gt V User THRESHOLD 2 POLARITY Figure 3 5 Count 1 amp 2 Inputs simplified Schematic WARNING The COUNT inputs are ultra high speed high sensitivity inputs and thus susceptible to oscillation Take care to apply low impedance lt 50 2 source signals and well shielded 50 2 cables The discriminator signals as detected by the input circuitry may be monitored online with an oscilloscope on the SYNC outputs Thus optimization of the threshold voltages was never as easy lt is recommended to use the Fast NIM SYNC output for this purpose due to it s higher bandwidth 3 2 6 SYNC Monitor Outputs The SYNC outputs provide a large variety of output signals for a lot of synchronizing triggering monitoring or whatsoever application The selectable output signals are INFAST comtecGmbH 34 Functional Hardware De
52. e size can be adjusted with the size combo box Histogram is the usual display with horizontal and vertical lines spline I means linear interpolation between the points and line means vertical lines from the ground to each spectra point If the displayed spectra range contains more channels as pixel columns are available in the video graphic display usually only the maximum value of the channels falling into that pixel columns is displayed But it can also explicitly specified by marking the checkboxes Max Pixel Mean Pixel or Min Pixel which value will be displayed It is also possible to display all three possible values in different colors that can be chosen in the colors dialog For the Mean Pixel a Threshold value can be entered channel contents below this value then aren t taken into account for the mean value calculation It is possible to change to a two dimensional view of the spectrum by specifying the x Dimension and clicking the button gt gt MAP Single Display Options Iv Max Pixel Threshold Size Iw Mean Pixel f None 2 M Min Pixel Eil Error Bar Cancel 2 Dimension Bad we Figure 5 9 Single View dialog box For MAP displays the Display Options dialog is changed and allows a choice between four Graphic types bitmap dot vector dot bitmap contour and vector contour Bitmap Dot is recommended as a standard because it makes a good and fast display Vector Co
53. e 300 dpi The PCL driver is also much more effective than a Postscript driver printing is much faster With 600 dpi the maximum figure size is indeed limited to about 12 cm x 7 cm Windows 9x cannot handle on an easy way bitmaps larger than 16 MB Setup Printer The Setup Printer menu item allows to configure the printer Exit The Exit menu item exits the MCDWIN 5 2 Window Menu The Window menu allows to arrange the Display windows IMF AST ComTec GmbH 5 3 MCDWIN Software Tile With the Tile menu item or clicking the corresponding icon all opened and displayed MCDWIN Display windows are arranged over the full MCDWIN client area trying to make the same size for all windows Cascade El The Cascade menu item or respective icon arranges all windows in a cascade Arrange Icons By the Arrange Icons menu item the minimized MCDWIN Display windows are arranged in a series at the bottom of the MCDWIN client area Close All By selecting the Close All menu item all Display windows are closed Window list At the end of the Window menu all created Display windows are listed with their names the current active window is checked By selecting any of the names this wndow becomes the active and is displayed in front of all others 5 3 Region Menu The Region menu contains commands for Regions and ROls Regions of Interest A Region can be marked in a display with the mouse using the right mouse button b
54. e digital input 4 as an external trigger for starting the system more modules Dig inputs 4 7 start systems 1 4 DESY control line If the corresponding checkbox is marked a start command for the respective system will not immediately start the system After the start command the digital input will be permanently checked for its logical level If the level changes from high to low the data for the system is cleared and it will then be started It will stop if the level returns to high or vice versa if Invert is marked and can again be restarted with the next level change A stop command for the system will finish the digital input checking By checking Clear before Start the spectra is cleared before the start A stop command for the system will finish the digital input checking The Use of the GO Line is controled via the 3 checkboxes Watch Release at Start and Low at Sweep Preset reached The GO line gates directly the hardware Low at Sweep preset reached means that the GO line is immediately pulled down when a sweep preset is reached If more than one MCA 3 card is used the system definition dialog box comes up as shown in Figure 4 10 Here the several units can be combined to form up to 4 separate systems that can be started stopped and erased by one command System Definition E x Bine Not active Systemi System 2 System 3 System 4 comes A MEA comes E MCA MCA gt gt gt gt gt gt gt lt lt
55. ectrum display the total and net sum of the selected ROI is displayed Fit A By selecting the Fit menu item or the respective icon A single Gaussian peak fit with linear background is performed for the currently marked region The fitted curve is displayed and a dialog box shows the results TA O E File Window Region Action Options 2 ook OM ETA 7886 Status FwHM 019 channels 4 656 0 093 nzec L Poz 2406 870 0 076 channels 1203 435 0 038 nsec Area 6834 148 15 Iterations Q 3 42 2312 Sum 74968 ROlSum 14875 Metto 5857 Cursor 2407 1203 5 nsec AO 2393 2429 Counts a5 Figure 5 5 Single Gaussian Peak Fit The full width at half maximum FWHM and Position of the Gaussian can be changed and a New Fit can be performed they even can be fixed to the entered value by marking the respective checkbox The Position and FWHM are displayed in channels and also in calibrated units if a calibration is available The area of the Gaussian is also shown For all values also the standard deviations are given The value of Q is the normalized chi 2 To take into account the systematic error of the lineshape you may multiply the errors with the squareroot of Q Click on Save to append a line containing the results to a Logfile with the specified name OK closes the dialog and the fitted function remains in the display also if the display is refreshed whereas after Cancel the curve no longer wil
56. edure 2 1 Hard and Software Requirements The MCA 3 requires a personal computer with INTEL compatible processor with an available PCI slot A Pentium Il or higher processor and at least 64 MB of memory are recommended A Microsoft WINDOWS NT 4 0 XP Vista 7 or higher operating system must be installed 2 2 Hardware Installation Turn off the power to your computer system and remove the line cord Discharge your body from any static electricity by touching a grounded surface e g the metal surface of the power supply before performing any further hardware procedure FAST ComTec assumes no liability for any damage caused directly or indirectly by improper installation of any components by unqualified service personnel If you do not feel comfortable performing the installation consult a qualified technician WARNING Damage to the MCA 3 board the computer or injury to yourself may result if power is applied during installation Static electricity discharges can severely damage the MCA 3 Use strict antistatic procedures during the installation of the board Open the cover of the computer case and insert the MCA 3 PCI board in an unused PCI slot You might first have to remove the cover from the rear of the PCI expansion slot you selected After the board is carefully seated in the PCI slot make sure you fasten the board with a screw to the mounting bracket EXTERNAL ADC PORT T SRI S ICI 1227 niga cede
57. ettings menu opens the System Definition dialog box If more than one MCA 3 modules are used several cards can be combined to form one or up to 4 seperate systems that can be started stopped and erased by one command In addition the use of the Digital Input Output and the GO Line can defined It can be used either to show the status of the MCA if the checkbox Status Dig 0 0 3 for more modules is marked At the respective pins 5 Volt are output if an acquisition is running and 0 V if not The polarity can be inverted by checking Invert Alternatively it can be used for example with a sample changer by checking Value inc at Stop Here the 8 bit value entered in the edit field a number between 0 and 255 is output at the Dig I O port This value will always be incremented by 1 if the P7887 is stopped The Invert checkbox allows to invert the logical level See also the commands pulse and waitpin how to handshake a sample changer The Radio buttons Push Pull and Open Drain describe the output mode of the Dig I O ports IMF AST ComTec GmbH 4 6 Windows Server Program System Definition E x GO Line watch High at Start Low at Stop DiglO Output C Push Pul Open Drain Status Dig 0 Invert Value incr at Stop o Start with Diglt Input Diga Clear before Start Cancel Save Sell Remote Figure 4 9 System Definition dialog box for a single MCA 3 card It is also possible to use th
58. formed by the MCDWIN program and therefore can be made only if this application is running oimilar to the fitroi command but using the argument allows to specify which spectrum should be evaluated independently of which child window is activated in MCDWIN Makes a single peak Gaussian fit for all ROIs in the active Display of MCDWIN for which a peak value was entered in the MCDWIN Region Edit dialog and uses the results for a 4 14 Windows Server Program calibration This is performed by the MCDWIN program and therefore can be made only if this application is running autocal MC_A Similar to the autocal command but using the argument allows to specify which spectrum should be evaluated independently of which child window is activated in MCDWIN The following commands make sense only when using the serial line or LAN control MC_A Sends the status of MC_A via the serial port and make MC A actual MC B MC D Sends the status of MC B MC D via the serial port and make MC B MC D actual oend the status of the actual multichannel analyzer RROI 0 1 Sends the sum mean value and max positive and negative deviation from mean of rectangular ROI 1 in spectra 0 sendfile filename Sends the ASCII file with name filename via the serial line connection The execution of a control file can be finished from the Server or MCDWIN with any Halt command IMF AEST ComTec GmbH 4 15
59. gnal should be connected to the Analog ADC Input normally used with the MCA Pulse Height Analysis mode The filtered output of the SCA function is then internally connected to the COUNT 1 input of the MCS function This feature is available only at the model MCA 3FADC as it is the only model in the MCA 3 series having both an analog input to the internal ADC and MCS functionality If the GATE function checkbox is enabled then a suitable GATE function signal must be connected via the GATE ADV ABORT input connector 3 5 Multiscaler Section 3 5 1 Introduction In MCS mode the MCA 3 counts STOP events relative to the TRIGGER START signal The time resolution is equal to the selected dwell time The total measurement time is the spectrum length in time bins multiplied by the dwell time The maximum count rate is typically well over 200 MHz The number of time bins spectrum length may be selected in the range of 64 to 512k 256k in dual input mode in steps of 1 This fine granularity allows to optimize the sweep length for a specific experiment When a sweep scan is finished e the last time bin has elapsed the MCA 3 is instantly ready for the next TRIGGER Thus a maximum sweep repetition rate with no end of sweep deadtime is guaranteed 3 5 2 Dwell Timer The internal dwell timer provides automatic time bin advance in the range of min 100 ns 200 ns in dual input mode upto over 107 s in steps of 25 ns External
60. he SCA Single Channel Analyzer as count source The important point is to properly setup the THRESHOLD LOWER and UPPER LEVEL DISCRIMONATORS ref Figure 2 17 and Figure 3 13 This is quite similar to any nuclear ADC El ADL Settings LowerLevel 0075 4 Upper Level 9 998 4 d Threshold nones 4 fe PHA v Filter Cancel Figure 2 17 Analog input Settings The threshold level is defined as that voltage at which the input signal is regarded to be above noise The lower and upper level provide a voltage window that defines valid interesting pulses Pulses that have peak values falling outside this e g energy window are discarded Thus you only convert count pulses inside the LLD ULD window IMF AST ComTec GmbH 2 10 Functional Hardware Description 3 Functional Hardware Description 3 1 Overview The MCA 3 is a family of full size PCI PC board based multichannel analyzers All settings are software selectable No jumper switch etc configurations are necessary The large 512k x 32 bit data memory can be segmented to accumulate successive measurements Online reading of the stored data is possible without additional deadtime affecting the actual measurement A switchable input lowpass filter at the analog ADC input allows to improve the signal quality by reducing high frequency noise on the signal Additional features are four onboard discriminators These enable the inputs to be adjuste
61. is Parameter dialog box It provides many choices for the axis of a display The frame can be rectangular or L shape the frame thickness can be adjusted xWidth yWidth A grid for x and y can be enabled the style can be chosen between Solid Dash DashDot and DashDotDot Ticks on each of the four frame borders can be enabled the tick length and thickness can be chosen The style of the axis labeling depends on enabled ticks at the bottom respective left side If no ticks are enabled there only the lowest and highest values are displayed at the axis otherwise the ticks are labeled Scaling 0 The Scaling menu item or the corresponding icon opens the Scale Parameters dialog box IMF AST ComTec GmbH 5 11 MCDWIN Software Scale Parameters Counts Range q 7 Counts Scale Maximal 300 i r Minimal jo qe V Auto scale Linear C Logarithmic Minimum auto scale Lancel Figure 5 14 Scale Parameters dialog box It allows to change the ranges and attributes of a Spectrum axis By setting the Auto scaling mode the MCDWIN will automatically recalculate the y axe s maximum value for the visible Spectrum region only To keep the same height of the visible region for a longer time deselect the Auto scaling mode Then with the scroll bar thumb one can quickly change the visible region scale otherwise the scale will be changed automatically The Minimum auto scale mode helps to display weak structures on a
62. jr TBD tsetup to begin of pulse deadtime rising gt 10 ns thoa after begin of pulse deadtime rising gt 60 ns EEE internal auto external manual software 1 MCS input channel rernnnennnrrnnnnnrannennnnennnnnvanennnne min 100 ns 2 MCS input channel rernnronnnronnnrnranrnnnnennnnnnnnnennnne min 200 ns EE max gt 107 s liie E catas 25 ns Appendix 7 3 Appendix Performance Characteristics External channel advance edge coocccncccnnccccccnncnconononnnnnnnonnnconcnonaninnns rising falling selectable period internally asured uuu 04ss0ne nennen min 150 ns Vige ga een 12 5ns Start WIGGeErdelay de dene 25ns 12 5 ns Deadtime End OS WOOD none between time bins ocooccccccnccccnconcocnconcccnnaninononos max 0 15 ns typ 0 07 ns SWEEP repetition time occcncccnncnnnncnncncnncannnnnnnnnnnonannnnannonnnnnnnnnnannnnans gt Range 25 ns ABORT reaction time mssssresnnnnnnnrnnnnennnnennnnnnnnrnnnnnnnnnnnnnnennanennnnnnnnnnnnnsnnnne at end of time bin ABORT pulse width eres gt dwell time 10 ns Differential linearity esses mnnera typ 10 07 Sweep Counter v 32 bit Sweep counter preset range cccoccccccccconccconccnononunnnnnnnonanonannnnnnnnnnnonnnnnannnnnnnnnnnnnnnnenanienans ku T
63. k on Options System to get the System Definition window pop up Set Mode to MCS ref Figure 2 9 and click OK IMF AST ComTec GmbH 2 5 Installation Procedure System Definition a x Mode y DiglO Output GO Line MES C PushPul OpenDrain I Watch MES StatusDigO Invert High at Start C MCA Value incr at Stop fo Low at Stop Start with DiglO Input Dig4 Clear before Start Cancel Save Sett Remote Figure 2 9 System Definition window Then click on Options Range Preset to find the MCA 3 Settings window pop up Set the Range to 4000 time bins and Dwelltime to 100 ns which corresponds to the desired 400 us time range Enable the sweep preset and type in the number of sweeps as 100 000 ref Figure 2 10 Take care to have Use SCA disabled Then click on Inputs to select the desired input threshold levels ala Madule Range 4000 Active Part fo 0 y Dwelltime 100 000 nsec Y Extemal Clock Manual Clock Abort enable Softw Start Tagged Spectra I Sequential Cycles 10 SEQUENCES fi IV Sweep Preset 100000 Time Preset 1000 000 ROI Preset fo rs Syncout NIM CLK IT Inv Use SCA TTL CLK C Iny Listmode Listmode 5 write Little mi Entecorelation Mono Histogram Timediferences Bel CA Setup name MCA3 OK Cancel Save Sett Load Sett
64. l Figure 4 6 Input Thresholds and DAC s dialog All parameters of the Ramp DAC as described in chapter 3 2 9 and the second MCS input ROI can be set here too The ADC button is available in MCA mode if the internal ADC is available and opens the ADC Settings dialog box Here you can specify the Lower Level and the Upper Level of the SCA i e IMF AST ComTec GmbH 4 5 Windows Server Program the Voltage level between O 10 V scroll bar or edit field and the Threshold between 0 and 2 5 V Also the Gate and SVA Sampled Voltage Analysis can be enabled and the threshold voltages for the Gate and SVA inputs can be set in this dialog see chapter Checking the Filter checkbox activates a 1 8 MHz cutoff frequency analog input filter on the Analog Input connector This is useful in some cases to filter high frequency noise that may be present on the input signal ADC Settings E x Lower Lewel 0075 4 gt Upper Level 9 998 4 d Threshold nones 4 gt Gate xj li gt oom z PHA e Filter Figure 4 7 ADC Settings dialog In MCS mode the SCA button opens the SCA Settings dialog that allows to specify the same SCA settings when using the analog input together with the SCA for multiscaling x Lower Level 0081 Upper Level fasse l Threshold poen af gt 4 Filter Figure 4 8 SCA Settings dialog 4 1 5 System definition dialog The System item in the s
65. l be shown in a refreshed display Options opens a new dialog box to define the information in the logfile IMF AST ComTec GmbH 5 6 MCDWIN Software Logfile Options X Header Print in each line Filename v ROI number ROI Sum IY ROI Net Sum ROI Centroid unit FOI Centroid Range a lt x b v Calibrated Position w Position channels v Peak Area counts Peak Area countas I Calibrated FWHM e FWHM channels Normalized chi 2 w sk for new logfile New line v Filename Mew line Start time Stop time Mew line Real time Live time 2 Deadtime Total Sum Special Report Figure 5 6 Log file Options for the Single Gaussian Peak Fit The several quantities are written in standard text format with Tabs as separators and a Newline character at the end of each line so the file can be read with standard calculation programs like EXCEL Click on Print Header to write a header line Fit ROls With the Fit ROIs item for all ROIs a Single Gaussian Peak Fit is performed and the results are dumped into the logfile Auto Calib Makes a Gauss fit for all ROIs in the active Display for which a peak value was entered and performs a calibration using the fit results 5 4 Options Menu The Options Menu contains commands for changing display properties like scale colors etc hardware settings calibration and comments Colors The Colors menu item or respe
66. large background Lin Log scale giu i Chose between Linear or Logarithmic scaling All options have effect only on the active Display Calibration uz 10 2 Using the Calibration menu item or the corresponding icon opens the Calibration dialog box Calibration Use Calibration E Unit Calibration Points Channel Channel Yalue 100 00 O75 3168 00 6234 00 033 4075 00 Value Clear All poe pias ple poe JE pl 0 00454 p 1 94e 006 p 1 98e 010 Gave az Cancel Figure 5 15 Calibration dialog box Make a choice of several calibration formulas Enter some cursor positions and the corresponding values e g energy mass etc click on Add and then on Calibrate The obtained coefficients can be inspected together with the statistical error or they can be changed and entered by hand If IMF AST ComTec GmbH 5 12 MCDWIN Software use Calibration is enabled the calibrated values are displayed together with the channel position of the cursor Comments Up to 13 comment lines with each 60 characters can be entered using the Comments dialog box The content of these lines is saved in the data header file The first line automatically contains the time and date when a measurement was started The titles of each line can be changed by editing the file COMMENT TXT Starttime AE Number Sample Place i M Amount NENNEN Unit FO Geometry Po Detector FO Remarks
67. lick on the MCA 3 icon To close it close the MCA 3 server in the Taskbar 2 5 Getting Started with some basic Measurement To ease getting familiar with the use of the MCA 3 we will now setup some basic measurements in MCS mode We use a simple TTL signal generator to supply START and STOP signals First we will measure the arrival time of multiple STOP events in a time window of 400 us after a START Trigger pulse The time resolution bin width shall be 100 ns The measurement should run for exactly 100 000 sweeps scans shots until it ends With an input signal frequency of 100 kHz the resulting spectrum is suggested to look like a garden fence with peaks every 10 us or 100 time bins First let s setup up the wire connections to the board and then start the software to run the measurement 2 5 1 Connecting the test signals for a MCS measurement The generator should be able to drive two 50 2 inputs to some hundred millivolts and should not exceed 5 V as not to exceed the absolute maximum ratings of the inputs For this a 50 Q power splitter divides the 100 kHz TTL signal into two branches The two output signals of the power splitter are connected to the 5 V discriminator TRG and COUNT 1 inputs on the PCI bracket ref Figure 2 7 MCA 3 bracket connectors 100 kHz o POWER GENERATOR SPLITTER Figure 2 6 Basic measurement setup INFAST te Installation Procedure 2 5 2 Starting MCDWIN and setup for the meas
68. lower ROI limit upper limit roimin lt channel lt roimax ROI preset value time preset value bit 0 1 if auto save after stop bit 1 write listfile bit 2 listfile only no histogram format type 0 ASCII 1 binary 1 if auto increment filename Use of Dig I O GO Line bit 0 status dig 0 3 bit 1 Output digval and increment digval after stop bit 2 Invert polarity bit 3 Push Pull output bit 4 7 Input pins 4 7 Trigger System 1 4 bit 8 GOWATCH bit 9 GO High at Start bit 10 GO Low at Stop digval 0 255 value for samplechanger for sequential mode for repeated sequential mode number of active part 32 bit value for FPGA choice of units in dialog O ns l usec 2 msec 3 sec bit 4 external clock or manual channel Sync out DIE 07 3 Syncoutl 9 11 SyncQut2 bit 7 Inv Syneoutl bit 15 Inv SyncOut2 OSCLK 1 GATE ABORT ADV 2 TRG SAMPLE 3 COUNT1 4 COUNT2 5 LIVE INT 6 LIVE EXT 7 1KH2Z 855CA 9 0N 10 EOB1N 11 BIN DIV 12 STEP_CNT 13 G0 14 RAMP DOWN 15 1 Livetime preset value MCA number of regions bit 0 1 if calibration used 4 20 Windows Server Program iy double swpreset long active long calpoints tur ACQSETTING typedef struct higher bits formula sweep preset value 1 for module enabled in system 1 number of calibration points long pol0 Handshake polarities long timerticks realtime livetime clocks per sec long timebase elementary dwelltime u
69. ltages was never as easy It is recommended to use the Fast NIM SYNC output for this purpose due to it s higher bandwidth 3 2 4 TRIGGER START SAMPLE Input This input is used as either e TRIGGER START of a MCS sweep e SAMPLE command for the internal ADC The TRIGGER START SAMPLE input is a LEMO type connector on the mounting bracket It accepts signals in the range of 5 V and provides a bandwidth of 100 MHz The input impedance is a selectable 1 kQ or 50 O The threshold voltage is adjustable in the range of 2 5 V For clean switching and oscillation free operation the slew rate should be higher than 0 5 V us The input polarity is also software selectable Refer Figure 3 4 for a simplified circuit schematic Diodes are provided for overvoltage protection WARNING Take care not to exceed the maximum input values as described in the technical data ref chapter The discriminator signals as detected by the input circuitry may be monitored online with an oscilloscope on the SYNC outputs Thus optimization of the threshold voltages was never as easy It is recommended to use the Fast NIM SYNC output for this purpose due to it s higher bandwidth IMF AEST ComTec GmbH 3 3 Functional Hardware Description 3 2 5 COUNT STOP 1 amp 2 Inputs These inputs are for MCS counting The COUNT STOP 1 amp 2 inputs are LEMO type connectors on the mounting bracket They accept signals in the range of 5 V and provide a bandwi
70. me sweep length The PHA mode is used for analyzing and sorting analog input pulses by amplitude either via an external Analog to Digital Converter ADC or via a fast internal ADC only present on MCA 3A and MCA 3FADC IMF AST ComTec GmbH IV WARNINGS WARNINGS Damage to the MCA 3 P7882 board the computer or injury to yourself may result if power is applied during installation Static electricity discharges can severely damage the MCA 3 P7882 Use strict antistatic procedures during the installation of the board Take care to provide ample airflow around the MCA 3 P7882 board Take care not to exceed the maximum input values as described in the technical data Particularly the COUNT inputs are very high speed high sensitivity inputs and thus susceptible to oscillation Take care to apply low impedance lt 50 2 source signals and well shielded 50 2 cables IMF AST ComTec GmbH V Table of Contents Table of Contents 1 IMF AST ComTec GmbH VI Table of Contents IMF AST ComTec GmbH VII Table of Figures Table of Figures IMF AST ComTec GmbH VIII Table of Figures IMF AST ComTec GmbH IX Introduction 1 Introduction The MCA 3 Series P7884 PCI board is a versatile family of advanced multichannel analyzers dual input multiscalers The design incorporates more features and functions than any other MCA in its price range The backbone is a fast MCA with 512 k onb
71. ming is scetched in the picture below IMF AST ComTec GmbH 3 1 Functional Hardware Description DEAD SO EEES SSS AAA AN IA A DRDY JA DAS Figure 3 2 Principle DRDY DACC Handshake Since all control signal polarities are software selectable any known ADC TOF etc might be connected DO 1 GN 14 DRDY IDO 1 oo 2 DRDY Legend DI 2 x 45 i 1013 1D1 3 o0 4 D13 D0 D15 Data Bit 0 15 input act low D2 3 2 46 D14 D2 5 oo 6 D14 DRDY Data Ready input ID 4 o 47 DACC ID3 7 oo 8 DACC DACC Data Accepted output DA 5 2 18 ENC IDA 9 oo 10 ENC ENC Enable Converter output ID5 6 y 19 D15 D5 11 oo 12 D15 DEAD ADC Dead Time Signal input D6 7 x 20 GND D6 13 oo 14 GND DENB Data Enable output ID 8 gt 21 DEAD D7 15 oo 16 DEAD GND Ground D8 9 x 22 DENB 1D8 17 o0 18 DENB D9 10 o 23 GND DQ9 19 oo 20 GND D10 11 24 GND D10 21 oo 22 GND D11 12 o 25 GND D11 23 o0 24 GND D12 13 ev D12 25 oo 26 Figure 3 3 External ADC Port 3 2 2 Analog ADC Input The analog signal input is a LEMO type connector on the mounting bracket lt accepts positive voltages in the range of 0 10 V The input impedance is 1 kO dc coupled An optional 1 8 MHz lowpass filter can be enabled to allow for reduction of high frequency noise In
72. n and while keeping the button pressed drag a rectangle In zoomed state a scrollbar appears that allows to scroll through the spectrum In the following the several menu functions are described together with the corresponding toolbar icons 5 1 File Menu Load Add Save Save As These menu items provide the usual functions for loading and saving data common to most Windows programs When saving data you have the choice between binary DAT and ASCII ASC format When you load data select a header file extension mcd This file contains the information about the length and format of the data file which is then automatically read It is also possible to load a file with extension CTL containing commands which are then executed With Add the data is added to the present data The data loaded from a file is corrected according to the calibration if available Open New With the Open New menu item or the corresponding icon a new Display window will be created and shown as the active window IMF AST ComTec GmbH 5 2 MCDWIN Software Open All By selecting the Open All menu item all available Displays are shown The window of the last opened Display becomes active Print The Print menu item opens the print dialog lt allows to arrange several pictures on a page into zones The number of zones in vertical and horizontal direction can be specified The Color can be black white RGB colored or Gray s
73. nd Applications E Imaging devices gt amp Keyboards gt n Mice and other pointing devices K amp Monitors gt EY Network adapters gt Other devices lim PCI Simple Communications Controller YY Ports COM amp LPT gt Print queues gt geh Printers Dl Processors Sensors gt Software devices amp Sound video and game controllers lt Storage controllers VK System devices Universal Serial Bus controllers dh WSD Print Provider More Actions Fig 2 2 Device manager The new device is displayed as PCI Simple Communication Controller in a class Other devices Please right click it and select Update driver from the drop down menu How do you want to search for driver software gt Search automatically for updated driver software Windows will search your computer and the Internet for the latest driver software for your device unless you ve disabled this feature in your device installation settings gt Browse my computer for driver software Locate and install driver software manually Cancel Fig 2 3 Driver installation Windows offers to search automatically for updated driver software or browse the computer for the driver software Don t try the automatic installation it will probably not work Select to browse manually for the driver and select for example for Windows 7 or 8 the wdmdriv Win folder on the CD or Software stick IMF AST ComTec GmbH
74. nd for following stop events the time difference to the reference is calculated The displayed spectra is then a relative time distribution of stop events related to the reference point The first stop event that falls out of the chosen time range after a reference event is taken as a new reference point Note that the MCS List mode is a wrap around mode intended for a very long single sweep The sweep can be much longer than the card RAM size In this mode the maximum number of counts per time bin is usually 255 This limit can be overcome if the High Rate box is checked but in this case the minimum dwelltime is about 2 mikrosec for proper operation a warning message will be shown when trying wrong settings Aug 25 2009 The measurement can be stopped automatically after a specified number of sweeps by checking Sweep preset A List file can be written by checking the corresponding checkbox Listmode and Write List file f No Histogram is checked no histogramming is made A series of measurements can be acquired into separate memory parts by checking Sequential cycles and specifying the number of cycles Each single measurement should be terminated by any of the preset conditions the complete run stops after performing the specified number of cycles or is repeated accordingly if the specified number of Sequences is greater than 1 Check Tagged spectra if you want to acquire up to 256 seperated spectra marked by tag bits as mentioned in chapter 3 3 4
75. nennannnnnnnn TBD Appendix 7 1 IMF AST ComTec GmbH Appendix Performance Characteristics xj ini xi Range 7250 lt RX 7350 lei x Ik i 206 00032 chames ft M JE el S O 1868 7 Fe FsjFiojrmijFt2 Pos 7288 85 0 002 channels Area 199903 447 counts 1999 03 0 22 28 Iterations Q 0 385 Logfile DATA TXT EE A A A WERSENERR A A A A A FE HE EEE A A A EEE wu eee AAA A RD TR E E rn RS A RR Se Je A RR RE RR SS AS E E EUCH EIE TEE a A A Sain ie ae A A A A IS X 0 7250 7260 7270 7280 7290 7300 7310 7320 7330 7340 TotalSum 199995 Cursor 7349 counts Figure 7 1 Internal ADC Peak Resolution Internal ADC Slider 1k 220000 215000 210000 205000 200000 Figure 7 2 Internal ADC Linearity Measurement Appendix 7 2 Appendix Performance Characteristics 1 5 1 3 1 1 0 9 0 7 0 5 0 1 0 1 0 5 0 7 0 9 1 1 1 3 1 5 0 3 U 0 3 PHI Differental Linearity 3 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 Figure 7 3 Internal ADC Differential Linearity Plot Internal ADC DNL Distribution Figure 7 4 Internal ADC Differential Linearity Distribution GATE to peak SAMPLE delay TAG 7 1 4 Multiscaler Dwell time modes Internal dwell time IMF AST ComTec GmbH Set corps 5 min delay TBD Wald T rre aii FE RRCRINR ONE EN 5 max delay TBD NAT
76. nit nsec long dwellmin minimum dwelltime long sernum Je long version Ei long type Bit0 0 SCA present Bitl 0 Internal ADC Bit2 0 extern ADC Bit3 0 Listmode Bit4 0 MCS mode Bit5 reserved presently 1 BOARDPROPERTY typedef struct long thrstart DAC 6 long thr ls IN AQ Long Enea DAC 8 long decli DAC 5 long qdacuse enable dac2 output Tong idees DAC 1 sdae2 long dacluse use ramp dac fixed in MCA mode long daelval fix ramp dac value in MCA mode long rampmode 0 fix lstriangle 2585awtooth long rampstart ramp start value long rampstep step height long rampbin step bin width long ramplen no of steps long impsel impedance edge select If Dit 0 3 50 Ohm Clk Start Inl In2 EP DIE 4 6 Fusing Clk Start InleIn2 unsigned long roi2min unsigned long roi2max double roi2preset DACSETTING typedef struct long uld upper level discriminator DAC 2 long lld lower level discriminator DAC 3 long thd threshold DAC 4 long gate gate enable long coin 1 coin or rising 0 anti or falling long filter l filter on long sva external sampled conversion Long slider O OFF 256 1024 8192 sliderrange auxiliary for dialog box long thrstart DAC 6 threshold for sampling long chrelk DAC 5 threshold for gate long impsel impedance edge select bit 0 1 50 Ohm Gate Start bit 5 rising Start ADCSETTING
77. nization and triggering of external devices or experiment monitoring A presettable 32 bit sweep counter in Mcsf deadtime and livetime counters in PHA mode enable for exact normalization calculations An open drain GO line compatible to other products of FAST ComTec allows for overall experiment synchronization The high performance hardware is matched by sophisticated software delivered with each MCA 3 MCDWIN the MS WINDOWS based operating software provides a powerful graphical user interface for setup data transfer and spectral data display Some of MCDWIN s features are high resolution graphics displays with zoom linear and logarithmic auto scaling grids ROIsP Gaussian fit calibration using diverse formulas and FWHM calculations Macro generation using the powerful command language allows task oriented batch processing and self running experiments C Libraries are available for controlling functions from the user s application program A DLL Dynamic Link Library is available for operation in a Laboratory Automation environment 1 From here on the manual will refer to MCA 3 P7882 most of the time as MCA 3 only If you purchased a P7882 please replace MCA 3 by P7882 in your mind 2 Mulichannel Analyzer 3 1 0 Input Output 4 Multiscaling 9 Pulse Height Analyzer 6 ROI Region Of Interest 7 FWHM Full Width at Half Maximum IMF AST ComTec GmbH 1 1 Installation Procedure 2 Installation Proc
78. nt byte comes first GANAAS files can be read with the popular gamma spectra evaluation software by the IAEA and have the extension spe It is an ASCII format with a small header containing after a tag SPEC_ID a title after a tag MEAS TIM a line containing two numbers for the livetime and realtime then a tag DATE MEA and the date and time of the measurement start then a tag MCA_CAL and two lines containing the order of the polynomial function for the energy calibration and the polynome coefficients After a tag DATA follow the spectra data in ASCII with 10 values per line Another ASCII file format is the x y format with extension txt It can be read for example with Excel and contains the channel number and content as two decimal numbers in ASCII per line seperated by a TAB character A special ASCII format for 2D files with extension csv can be read with the older MPAWIN software for the FAST ComTec MPA PC multiparameter system if the extension is changed into asc It has got a small header starting with a line DISPLAY and ending with a line DATA and then only for each non zero data point a line containing 3 values seperated by TAB characters the x and y channel numbers and the channel content A variant of the standard binary format is the dual binary format with extension da2 It is especially suited for multiscaling data recorded using both inputs and combines both time spectra into a single file first from Count 1 Inpu
79. ntour paints colored contour lines To calculate the lines takes a lot of time and causes the mouse pointer changing to an hourglass But it gives very impressive colored pictures suited especially for presentation and when looking carefully at spectra details IMF AST ComTec GmbH 5 9 MCDWIN Software MAP View Ei Graphic Type Dimension r 256 Slice bitmap dat vector dot bitmap contour vector contour gt gt Single Cancel gt gt sometric Figure 5 10 MAP View dialog box Clicking the Slice button allows to create new single spectra displays showing a slice in a 2D spectra The Slice dialog box is displayed Select x const or y const for the slice direction and the coordinate Clicking the create button creates the new display window In the title bar of the new window the name of the 2D spectra and the slice coordinate is shown The slice position can be changed using the scroll bar in the Slice dialog or by entering the value in the edit fileld and pressing the button which is labeled Set after creation of the slice view The Slice dialog can be closed by clicking its close field Created slice spectra displays remain visible and their coordinates can be changed later using the Slice dialog again The position of the Slice dialog with respect to the MCDWIN main window can be saved in the MCDWIN CNF file Rectangular ROls are visible in the slice spectra display and can be create
80. nverter PHA ADC with a typical conversion time of 500 ns The peak detection circuitry is optimized for Gaussian shaped input signals It is also possible to use the ADC in a sampling mode This ADC is ideally suited for high counting rate applications Two discriminator levels provide for Single Channel Analyzer SCA functionality The built in SCA can be output on any SYNC output This can be used in such applications like Moessbauer opectroscopy The GATE input can be used to gate out specific events An additional analog RC low pass filter f 1 8MHz can be enabled to reduce high frequency noise superimposed on the input 3 4 2 Pulse Height Analysis In PHA mode each input pulse with its peak value falling into the window between the lower and upper level discriminators is converted When enabled the GATE input must be valid polarity is software selectable at the peak ref chapter 7 1 3 for setup and hold requirements The threshold voltage THD defines the upper limit of the noise floor to prevent conversion triggering by noise IMF AEST ComTec GmbH 3 9 Functional Hardware Description The simplified operational flow is to detect a signal is coming by an upward crossing of the threshold level i e input is above noise This arms the peak detector Then at the signal s peak you check if the pulse falls between LLD and ULD If yes the peak voltage level is converted This way you can discard pulses that fall outside an intere
81. oard memory channels and 32 bit capacity each which allows to accumulate 100 in the background The memory can also be configured as a large FIFO buffer for listmode data acquisition A standard nuclear ADC port allows to connect a large number of external devices like ADCs TDCs etc The data width is 16 bit corresponding to 64k channels The design is capable to collect external ADC data at rates of up to 5 000 000 events s Features available include a built in pulse height analyzing ADC with 500 ns conversion time and 8 k conversion range The throughput capacity is in excess of 1 000 000 events s depending on the shape and duration of the input pulses Multiscaling mode is far advanced and offers two count inputs with 100 ns bin width 200 ns in dual input mode and counting rates far in excess of 350 MHz The two counting inputs allow to acquire for example two Moessbauer spectra at a time from a single Moessbauer drive This is a very economical solution requiring just one Moessbauer system The very short dwell times starting at 100 ns make the MCA 3 ideal for many types of spectrometers and LIDAR applications where high count rates are required as well as high sweep repetition rates A versatile 8 bit digital vob port may further satisfy your experimental needs Usage as TAG inputs allows for a wide range of spectra routing multi detector experiments sequential acquisition etc Two software configurable SYNC outputs provide synchro
82. ogrammable Commands xl mli eese pp fpliteq 0 006e8 OOO ry Ritter OOOO pp ptesz8 m fun fcth pe ente pri ffcth pe fun m utet F10 fun fane pax wnzc Cancel Figure 5 22 Function keys dialog box The functions can be executed by clicking the corresponding icon in the toolbar or by the corresponding function key on the keyboard simultaneously with the CTRL key The MCDWIN window must be the active on the desktop and have the focus Status bar With this menu item the Status bar at the bottom of the MCDWIN main window can be switched on or off A corresponding checkmark shows if it is active or not The Status bar usually shows if an acquisition is running When the left mouse button is held down while the mouse cursor is on a toolbar icon it displays a short help message what the toolbar icon does Status window The same way it is possible to hide or show the status window at the left side of the MCDWIN main window Save Stores all parameters defined in the Options menu to the MCDWIN CNF config file Save As Stores all parameters defined in the Options menu to a user defined config file Retrieve Loads a new configuration 5 5 Action Menu The Action Menu or corresponding toolbar icons contain the commands to start stop continue and erase a measurement lf more than one system is formed also more actions menus are available otherwise they are grayed or disabled Start
83. option dialog lt is possible to drag a rectangle and zoom into this rectangle Rectangular ROls can be set and the ROISum and Net ROISum is displayed The Net Sum is calculated the same way like in the single view by subtracting a linear interpolated background from the both outmost channels in x direction This Net sums are then summed up in y direction The ROI editing dialog is changed into a Rectangular Editing dialog for MAP and ISO displays The Cursor can be moved in x and y direction using the mouse and the arrow keys in ISO display only using the arrow keys IMF AST ComTec GmbH 5 1 MCDWIN Software fea MCDWIN File Window Region Options Action 2 xs Jet PC Eo Ee jaj Frilrzjralra rs rejrz raj Fo FtoFtt ot2 P7886 Status P7886 2 TotalSum 1072085 Cursor Counts RegionRect ner d 20 TotalSum 1072085 Cursor Counts RegionRect 130 135 127 115 0 Acquisition OFF Figure 5 2 MCDWIN Map and Isometric display A status window at the left side gives all information about the status of the MCA 3 A toolbar provides fast access to many used functions in the menu A status bar at the bottom gives help about the meaning of the toolbar icons A cursor appears when clicking the left mouse button inside the graphics area The cursor can be moved using the arrow keys To get rid of the cursor make a double click with the right mouse button outside the graphics area To define a region press the right mouse butto
84. remote shell and the optional available MCDLAN software It is necessary to have TCP IP networking installed and that the remote shell daemon program MCWNET is running See the readme file on the installation disk e Send the commands via the DLL interface from LabVIEW a Visual Basic program or any other application software including the complete source code of the DLL and examples optional available e From your own Windows application register a Windows message and then send the command as can be seen in the DLL source code The file MCA3A CFG contains a complete list of commands for setting parameters An example is lld 33 Lower Level Discriminator uld 4095 Upper Level Discriminator thd 98 ADC Threshold gate 0 Gate enable coin 0 Gate mode 0 means Anticoincidence 1 Coincidence IMF HST ComTec GmbH 4 9 Windows Server Program sva 0 1 means Sampling mode for internal ADC adcfilter 1 Use Filter for ADC range 8192 Sets histogram length prena 0 Preset enable bits hex bit O Realtime preset enable bit 1 Lifetime preset enable bit 2 Sweep preset enable bit 3 ROI preset enable bit 5 ROI 2 preset enable in 2nd MCS spectrum mcsmode 6 Operation mode bits hex bit 0 single MCS bit1 dual MCS bitO and bit1 0 MCA mode bit 2 MCA Internal ADC bit 3 sequential mode bit 4 tagged bit 5 listmode bit 6 Software start MCS bit 7 time differences mode MCS bit 8
85. ry tags Timer counter 7 1 2 External ADC Port Input data rate Live Real time resolution Timer preset range 7 1 3 Internal ADC Conversion time Deadtime Data throughput Live Real time resolution Timer preset range SCA pulsewidth Peak to sampling delay Resolution Integral non linearity Differential linearity Peak shift Unused channels IMF AST ComTec GmbH Performance Characteristics io iia ida 912k x 32 bit tata Multiscaling erlegen Pulse Height Multichannel Analysis NISTOgFAMMINg Haste Cardmode FIFO Ve T Listmode programmable in binary steps 64 128 256 512k programmable in steps of B4 ccoocccoccccccccocncocncocncconcconcnanonanonanos M toudentaa 64 128 192 512k 64 524 224 most significant memory address bits DIG I O 0 7 2X ES n euna aa eine a a hota 32 bit EE 370 700 ns ia da aan typ 500 ns idea Time to peak MAX Conversion time Signal fall time ee A A A O ANA EEOSE Deadtime 8k range 500 ns flat top pulses typ 2 1 chs EL Se typ 0 25 including effects from integral non linearity typ 11 1 for 99 of usable channels typ 0 8 upto 700 keps SVA MOd6 occcocccocccocccccncocncooncconoconocanonannonanos TBD upto 1000 keps SVA mode rrrarrrarrnarerarenaneranenanera
86. s bit 11 since bit 11 and bit 12 will be use in an 8k sweep length 13 bits the next available bits for tagging would correspond to Digital I O bit 2 and Digital I O bit 3 bit 13 and bit 14 Your TTL signal should be connected to these D I O s your LSB to D I O bit 2 Q Thanks for your fast reply That cleared things up This leads me to think that in order to create the possibility of using the most bins should set my two TAG bits on bit 16 and 17 DIO 5 and 6 Is it correct that could still use less bins in the three spectra tag mode and could swap between 1 or 2 input channels without having to change my DIO connector cabling or is it something I m not getting here What I m after is a configuration that will allow the most flexible setup without rewiring the two TTL DIO cables A You could use DIO 5 and 6 only and not rewire the DIO cabling but it will require adjustment of the Tagged Spectra setting from 3 if you are to change the Range setting to something other than 65k The reason for this is the way the tag bits are allocated relative to the MSB of the sweep range a corresponding number of bits more significant to MSB of the sweep range are used as the tag bits So for two tag bit usage and an 8k sweep range bits 0 12 used the next two bits bits 13 and 14 corresponding to DIO 2 and 3 get used as the tag bits for a sweep range of 32k bits 0 14 used bits 15 and 16 DIO 4 and 5 get used and for a the sweep r
87. scription e CLK Internal 40 MHz clock e GATE ADV ABORT Discriminated input signal e SAMPLE TRG Discriminated input signal COUNT STOP 1 COUNT STOP 2 Discriminated input signal Discriminated input signal e LIVE INT Internal ADC livetime signal e LIVE EXT External ADC port livetime signal e 1 kHz Internal 1 kHz signal e SCA Single Channel Analyzer output e ON indicates a running sweep in MCS mode when logic 1 e FoBin End of Time bin signal e BIN_DIV Divided End of Time bin signal used to increment the x ramp DAC e STEP CNT Signals when number of set steps of the x ramp DAC is reached e GO GO line e RAMP DOWN signals falling portion of a triangle x ramp d li logic 1 All these signals can be inverted and they all may be output on the Fast NIM SYNC 1 output on the mounting bracket and on the TTL SYNC 2 output on the FEATURE connector ref as well 50 FAST NIM OUTPUT 32 mA Figure 3 6 Fast NIM SYNC 1 output schematic The Fast NIM SYNC output supplies standard Fast NIM 0 0 8 V 16 mA signals into a 50 Q load The output impedance also is 50 Q For Fast NIM signals a logical TRUE corresponds to a low voltage 0 8 V e g while a sweep is running ON will result in 0 8 V TRUE output 3 2 7 GO Line The system wide open drain GO line enables any connected device to start and stop all participating measurement equipment simultaneously This allows for easy syn
88. served by a PCI card like the MCA 3 using the AMCC 5933 S5935 PCI interface chip In this case please use another computer IMF AST ComTec GmbH Appendix 7 11 Appendix Frequently Asked Questions 75 Frequently Asked Questions 7 5 1 Tag bits Q have a question regarding the P7882 I want to use the D I O bits to tag three different spectra but can t find in the manual how to assign the DIO bits to be used as TAG bits want to integrate in a cyclical manner these 3 sources understand they will be shifted in memory and so forth have two TTL lines that indicates which input is active i e TTL 1 amp 2 low source 1 TTL 1 high and TTL 2 low source 2 TTL 1 low and TTL 2 high source 3 So again how do programatically set which D I O are to be used as TAG bits and how do I achieve the necessary shift in terms of bins if say want each source to have 8k bins A Selecting Options gt Range Presets will open the MCS Settings dialog window Check the box to the left of Tagged Spectra in the box to the right of that enter 3 the default is 128 Set the Range to 8192 Using 13 bits 8k of time resolution would leave the remaining most significant 6 bits available for tagging out of the total of 19 bits in 1 input MCS mode 5 bits would be available in 2 input MCS mode as the MSB is used to identify the input According to sections 3 3 4 and 3 5 6 in the manual Digital I O bit O is used to addres
89. sting e g energy window Pile up rejection is provided by allowing a new conversion only after the signal has fallen back below the threshold level LL SIGNAL THD 5 olco E SR NS ADO O IA ei DEAD TIME GATE CONVERSION TIME SCA OUT Figure 3 13 Internal ADC PHA Principle 3 4 3 Sampling Voltage Analysis In SVA mode the input voltage is converted on the selected edge of the SAMPLE input signal Different from PHA mode the LLD ULD levels are ignored and the SCA does not work in SVA mode An enabled GATE input must be valid at the sampling signal edge SIGNAL SAMPLE GATE CONVERSION TIME Figure 3 14 Internal ADC SVA Principle IMF AST ComTec GmbH 3 10 Functional Hardware Description 3 4 4 Single Channel Analyzer The Single Channel Analyzer function filters a signal input by amplitude in the MCS mode of operation using the SCA Threshold Lower Level LLD and Upper Level ULD Discriminator settings An event count is then accepted only if it is above the Threshold and LLD and below the ULD This function enables the selection of only certain amplitude signals by the SCA for further processing by the MCS function To activate the internal SCA Single Channel Analyzer function go to Options Range Presets Check the Use SCA checkbox See Figure 4 4 MCS Settings on page 4 4 Note When the SCA function is used the input si
90. t and then from Count 2 Input For data not recorded in MCS2 mode it is the same as the usual binary dat format IMF AST ComTec GmbH 4 8 Windows Server Program List files have the extension Ist and start with a header containing the usual report and configuration data in ASCII as in the MCD files The header ends with a line containing DATA Then follows the data depending on the format chosen for the data file either in ASCII one number per line or in binary 4 bytes per number as usual in the Intel world in the reverse order i e the least significant byte comes first For MCA mode the number must be masked with Oxffff to get the channel to be incremented in the spectra the higher bits may contain tag bits if used see section 8 5 6 Mar 21 2005 If Timestamps are enabled in the settings dialog in the listmode box the realtime and livetime counters are dumped into the listfile every time when event data are transfered The time belongs to the event data immediately preceding the time stamp The timestamp consists of three 32 bit words a 1 as a characteristic tag then the realtime and the livetime counters Note that this counter is less than 1 if a corresponding preset is set the preset is reached at a value of 1 In ASCII format the 3 numbers are in a single line and seperated by tabs List files in MCS mode are similar but for each dwelltime two numbers are recorded the memory address and the number of counts In ASCII form
91. t memory address bits thus shifting the acquired spectrum corresponding to the actual TAG input Tag bits can be used to record a 1 8 bit external digital input and append or tag it to the time information recorded by the multiscaler providing the tag bits are present at the tag inputs at the appropriate time A typical application for example is to identify a specific detector from several using a digital code fed to the tag input that generated the time count Normally there are a total of 19 bits of digital data available corresponding to the 512 K time bin memory on the board which enables a maximum of 524 288 time channels time bins to be used in 1 input mode and 262 144 in each input in 2 input mode Digital I O bit 7 is used as address bit 18 MSB while Digital I O bit 0 is used as address bit 11 In 1 input mode a maximum of 8 tag bits are available and when using all 8 tag bits 2048 time bins are then available corresponding to 19 8 11 bits Conversely for example for a sweep length of 4096 channels 4K 12 bits a maximum of 7 tag bits can be used In 2 input mode a maximum of 7 tag bits are available the 8 bit is used to identify input 1 or input 2 When 7 bits are used in 2 input mode the maximum time sweep length is limited to 2048 channels corresponding to 19 1 7 11 bits for each input In MCS mode the digital I O port TAG input in this case is sampled when the TRIGGER signal becomes active Th
92. te sprime aia e a a a aa a a aaa n 10 V RESONS EE n a 12 bit 4 88 mV Digital I O 0 7 KOG ac ref FEATURE multi I O port connector R PULL detal een 1 0 kQ R I O default sta at se 220 Input HIGH voltage at PIN ref Figure 3 11 J min 2 0 V Input LOW voltage FIN auto eS max 1 2 V Output HIGH voltage at POUT ser TOMMA zen min 2 4 V Output LOW voltage at POUT loutow TOMA ernrrnnnnnnvnrnnnvnnvnnrnnnnnnnnnnnn max 0 45 V Output short circuit current Vout GND Reutt Ryo 0 15 to 180 mA Vout 3 3 V Rpuu Ryo OQ 40 to 210 mA GO Line LoCcallOl TE EET EE PCI board EEE TEEN EEE EE ref multi I O port connector Connector 2 pin header on PCI board LUMBERG 2 5 MSFW 2 MBX suitable socket connector LUMBERG 2 5 MBX2 Line Types Mailer open drain wired AND FUIFIRGSISIOIS o ga E E aos 100kQ to VCC Input HIGH VORTE sica ee min 2 0 V HITEN Voltage NEN max 1 2 V Output LOW voltage uto TIMA una max 0 8 V 7 2 5 Physical PCI long board ISA assembly 5V oize dale GE Eg cus iie EEE 341 x 107 mm Weight DOard SONE ae TBD y 1 Note input and output voltages are measured at the internal logic pads not at the external connectors Thus the corresponding pull and series resistors must be considered to get the external voltages 2 Only one output at a time
93. time unsigned long maxval ACQSTATUS t Ly Lj et typedef struct unsigned long range long prena long mcsmode unsigned long roimin unsigned long roimax double eventpreset double rtpreset long savedata long fmt long autoinc long diguse SS MES ITS S TN NM NR SG ERS I DS OSS SUSAR MN SAN OS SA lo O SI A TTS PS N SS las long digval Jof long cycles IH long sequences Josh long mempart EA unsigned long dwelltime long dwellunit IF L4 advance long syncout If E Li T Fy 21 double ltpreset EL long nregions IH long caluse ES IMF AST ComTec GmbH realtime in seconds total events events within ROI acquired total events per second ROI sum with background subtracted Livetime in seconds or sweeps for MCS mode deadtime in percent Maximum value in spectrum spectrum length ADC range bit 0 realtime preset enabled bit 1 livetime preset enabled bit 2 sweep preset enabled bit 3 ROI preset enabled bit 5 ROI2 preset enabled bit 0 MCS 1 channel bit 1 MCS 2 Channel mcsmode 0x3 MCA mode bit 2 MCA int ADC MCA bit 3 sequential mode MCA MCS bit 4 tagged MCA MCS bit 5 listmode MCA MCS bit 6 Software Start MCS bit 7 differential mode MCS bit 8 Ch2 ref diff mode MCS bit 9 Autocorrelation MCS bit 10 enable sweep abort MCS bit 11 synchron tag always on MCA MCS bit 12 use SCA Input MCS
94. ting bracket A AA LEMOSA series 00 NIM CAMAC software selectable ooccooccccocnococnocannccanccnanonos 1kQ 50 Q M 5 0 V power up default 0 0 V occoncccncccccccccccnccocnconcnnonnnnnnnos 2 5 V ee ee een in steps of 1 22 mV ust RN NE ER LESERN eaten tose typ lt 10 mVpp GATE ADV ABORT 12 lt 100 MHz TRGO V SAMP EE ee lt 100 MHz COUNT ati tardes typ gt 200 MHz COUNT 2 tao CUM ee typ gt 200 MHz GATE ADV ABORT isis iaa ein typ gt 5 ns ORG SAMPLE zn este A typ gt 5 ns ee NND EE typ gt 2 ns COUNT 2 EE typ gt 2 ns EEE EEE EE SE gt 0 5 V us EE A EE ae EEE software selectable cada mounting bracket EET re LEMOSA series 00 NIM CAMAC EN EE 50 Q ae II rm typ 0 0 V OOO TOG EE typ 0 8 V Vout EE RE a typ 32 mA ERN m EMO MR E software selectable Mesue atu aida ref FEATURE multi I O port connector at POUT loutHIGH ZI MA dci tears min 2 4 V at POUT loutLow ETON e E Lm max 0 45 V Vout GND RpuLL 69 Ryo 00 is 15 to 180 mA Vout 3 3V RpuLL oo Ryo 002 Ba RT au we ty 40 to 210 mA M software selectable Appendix 7 8 Appendix Specification DAC 1 Output Ble MM a ref FEATURE multi I O port connector OuipucvoltadeTadlde O 0 10V FRESOIUMION A de cct coe cue 12 bit 2 44 mV DAC 2 Output EON maana dan ref FEATURE multi I O port connector Output voltage ra
95. tion delay 4000 Waits specified time 4000 msec 4 sec pulse 100 Outputs a pulse of 100 ms duration at dig 3 pin 2 waitpin 4000 Waits 4000 ms for going the level at dig 7 pin 13 going low After a timeout a Messagebox warns and waits for pressing OK Can be used for connecting a sample changer sweep Starts a Sweep Software Trigger IMF AEST ComTec GmbH 4 12 Windows Server Program advance Advances the timebin channel in manual mode run controlfile Runs a sequence of commands stored in controlfile This command cannot be nested e it is not possible to execute a run command from the controlfile called onstart command The command is executed always after a start action when the acquisition is already running The command can be any valid command also run controlfile is possible onstart off Switches off the onstart feature Also a manual Stop command Switches it off onstop command The command is executed always after a stop caused by a preset reached or trigger This can be used to program measure cycles For example the command onstop start makes a loop of this kind onstop off Switches off the onstop feature Also a manual Stop command Switches it off lastrun 5 Defines the file count for the last run in a measure cycle After a file with this count or greater was saved with autoinc on instead Of the onstop command the onlast command is executed
96. tions IMF AST ComTec GmbH 4 16 Windows Server Program Ls mca3dde vi Dian adi ni x ODE Execute vi Figure 4 13 Executing a MCA 3 command from a LabVIEW application 4 3 3 DDE Request The DDE Request is a message exchange to obtain the value of a specified item Only two items are defined for DDE request up to now RANGE and DATA The value is obtained as an ASCII string i e it must be converted by the client to get the numbers All other parameters concerning the setup can be obtained by the client application by reading and evaluating the configuration file RANGE The RANGE item can be used to obtain the total number of data i mra3dde vi Diagram E B x File Edit Jerez eqs Windows Help Figure 4 14 Getting the total number of data with LabVIEW DATA With the DATA item the data is obtained The value of this item is a multiline string that contains in each line a decimal number as an ASCII string IMF AST ComTec GmbH 4 17 Windows Server Program Ls mca3dde vi Dios pee aene 3 0 4 De Be EHRE BA Figure 4 15 Getting the data with LabVIEW 4 3 4 Close Conversation After finishing the DDE communication with the server program it must be closed Ls mca3cdcde vi Diar di Figure 4 16 Closing the DDE communication in LabVIEW The following figure shows the Panel of the described VI for LabVIEW IMF AST ComTec GmbH 4 18 Windows Server Program ua mra3dde
97. ts entered in the MCDWIN program Remote Control 4 Use Remote Control P YGUULORQOODIODUOCDUOCHOUDRIOOUOR UO OO OOO OdOOOOuOS Y Echo command Echo character Communication Parameters COM Port t Baud 9600 Databits EN In Stopbitz IN Cancel Figure 4 11 Remote control dialog Parity The Remote button opens the Remote control dialog box Here all settings can be made for the control of the MCA 3 server program via a serial port If the Checkbox Use Remote Control is marked and the COMCTL DLL is available i e you have the optional MCDLAN software the specified COM port will be used for accepting commands see Control language If Echo command is marked the input line will be echoed after the newline character was sent Echo character on the other hand immediately echoes each character 4 1 6 File formats Spectra data is written into two seperate files one with extension mcd containing configuration data and one containing pure spectra data with an extension indicating the chosen format The mcd file contains the settings in ASCII format using the control language described in section Spectra data files with extension asc contain in each line one decimal number in ASCII containing the corresponding count value in the histogram Binary data files with extension dat are written with 4 bytes per data value as usual in the Intel world in reverse order i e the least significa
98. urement Next step is to start the MCA 3 software by double clicking the corresponding icon This will automatically start the MCDWIN program On startup a picture appears that shows the bracket connectors ref and their meaning You can review this picture any time by clicking on File About in the MCA 3 server program About MCA3 x Model MCA 3 0 Version 1 0 for Windows 98 ME ANT 2000 XP Copyright Y 2003 FAST ComTec R T ANALOG ADC IH GATE CLOCK ABORT IH TRG START SAMPLE IN COUNT STOP 1 IH COUNT STOP 2 IH SYHC 1 OUT FEATURE MULTIPLE 1 0 Figure 2 7 MCA 3 bracket connectors The MCA 3 Server is iconized then and one does not have to worry about it since all hardware settings are also accessible from the MCDWIN program which actually is the graphical user interface and which will appear now on your screen ref Figure 2 8 E MCDWIN zi Ele Window Region Options Action e ER TR EP BRE P TEE EE Display FG F7 FB F9 F1O F1 F12 we Ai Scale Parameters Calibration Comments Range Preset Data Function keys v Tool Bar Status Bar Total Rate Status Window Open AOL Sum Save AS PR AA M ADI Net 0 0 0 8191 TotalSum D Cursor Counts Acquisttion OFF Figure 2 8 MCA 3 MCDWIN startup window Now we first have to setup the MCA 3 First we need to set it to MCS mode Clic
99. us whole sweeps are tagged 3 5 7 MCS Listmode Using the listmode data acquisition in MCS mode allows for sheer endless sweeps i e to extend the total sweep length beyond the onboard memory limit of 512k time bins The minimum dwell time applicable depends on the maximum data transfer rate into the PC and thus largely depends on the computer used IMF AST ComTec GmbH 3 12 Windows Server Program 4 Windows Server Program The window of the MCA 3 server program is shown here It enables the full control of the MCA 3 card to perform measurements and save data This program has no own spectra display but it provides via a DLL dynamic link library access to all functions parameters and data The server can be completely controlled from the MCDWIN software that provides all necessary graphic displays File Settings Action MES a File Settings Sweep l Action Status Total HUI Figure 4 1 MCA 3 Server Window in dual MCS mode left or MCA mode right 4 1 Server functions To start the software just double click a shortcut icon linking to the server program The server program performs some tests and then starts MCDWIN and gets iconized Usually you will control everything from MCDWIN but it is possible to work with the server alone and independently from MCDWIN 4 1 1 Initialisation files At program start the configuration files MCA3 INI and MCA3A CFG are loaded Up to 4 MCA 3 boards can be used
100. used to program measure cycles For example the command onstop2 start2 makes a loop of this kind onstop3 command The command is executed always after a stop of system3 caused by a preset reached onstop4 command The command is executed always after a stop of system4 caused by a preset reached onstop2 off oWitches off the onstop2 feature Also a manual Stop2 command switches it off IMF AST ComTec GmbH 4 13 onstop3 off onstop4 off numruns2 5 numruns3 5 numruns4 5 onlast2 command onlast3 command onlast4 command onlast2 off onlast3 off onlast4 off abortloop2 abortloop3 abortloop4 endloop2 endloop3 endloop4 exec program deleteallrois deleteallrois MC_A fitrois fitrois MC_A autocal IMF AST ComTec GmbH Windows Server Program Switches off the onstop3 feature Also a manual Stop3 command switches it off Switches off the onstop4 feature Also a manual Stop4 command switches it off Defines the number of runs in a measure cycle with onstop2 Defines the number of runs in a measure cycle with onstop3 Defines the number of runs in a measure cycle with onstop4 The command is executed after a stop caused by a preset reached or trigger instead of the onstop2 command when the last file count is reached with autoinc on This can be used to finish programmed measure cycles oee onlast2 for loops with onstop3 See onlast
101. ut LOC WONS EE NE ERE EE eO dd C Meno C mounting bracket COMICO ainda dut iri pra LEMOSA series 00 NIM CAMAC INPUEIMPEAANICE aaa aca dal ru 1kQ Input filter software selectable on off lowpass fg 1800 kHz AImplUude rana iO 0 025 10 V 1 vcc nominally is 5V when power is ON IMF AST ComTec GmbH Appendix 7 7 Pulse form Signal shaping time Threshold voltage Lower Level Discriminator Upper Level Discriminator 5 V Discriminator Inputs Location Connector Impedance Input voltage range Threshold voltage Sensitivity Bandwidth Pulse width high low Slew rate requirement Logical polarity slope Fast NIM SYNC_1 Output Location Connector Impedance Output HIGH voltage Output LOW voltage Output short circuit current Logical polarity SYNC 2 Output Location Output HIGH voltage Output LOW voltage Output short circuit current Logical polarity IMF AST ComTec GmbH Appendix Specification M Gaussian shaped EE AR RETO DUE Ee Uode aye Ob DU eel 250 ns to 25 us power up default 21 MV eeseseeeeessss 0 2 5 V HEN in steps of 0 61 mV power up default 61 mV eeesseeeeseese 0 10 V TT in steps of 2 44 mV power up default 10 0 V eeeeseeeeeeseeee 0 10 V VRE AE rn Erst P NR in steps of 2 44 mV AEE E eens moun
102. y be reproduced by any means without prior written permission of FAST ComTec Gr nwalder Weg 28a D 82041 Oberhaching Germany Tel 49 89 66518050 FAX 49 89 66518040 http www fastcomtec com The information in this manual describes the hardware and the software as accurately as possible but is subject to change without notice IMF AST ComTec GmbH Important Information on Hardware Compatibility Important Information on Hardware Compatibility The MCA 3 Series P7882 Multichannel Analyzers Multiscalers are PCI Local Bus compliant devices As such the board contains the configuration space register organization as defined by the PCI Local Bus Specification Among the functions of the configuration registers is the storage of unique identification values for our devices as well as storage of base address size requirements for correct operation specific to each of our products The host computer that our products are installed in is responsible for reading and writing to from the PCI configuration registers to enable proper operation This functionality is referred to as Plug and Play PnP As such the host computer PnP BIOS must be capable of automatically identifying a PCI compliant device determining the system resources required by the device and assigning the necessary resources to the device Failure of the host computer to execute any of these operations will prohibit the use of the MCA 3 Series Multichannel Analyzers P
103. y dragging a rectangle over the area one is interested in A ROI i e an already defined region in a single spectra can be shown zoomed by double clicking with the left mouse button on the corresponding colored area in the bar at the bottom of the spectra display A single mouse click with the left button on the corresponding colored area makes this to the active ROI and lets the counts contained in this ROI be displayed in the information lines of the respective window N 3 00 e The Zoom item or respective icon enlarges a Region to the maximum Display Spectrum size QD ack eg The Back menu item or clicking the corresponding icon restores the last zoom view successive Back command returns to the previous view Zoom Out e The Zoom Out menu item or clicking the corresponding icon reduces the actual zoom factor by 2 if applicable _ om D Clicking the Home menu item or the corresponding icon restores a Display to the basic configuration INFAST ont MCDWIN Software Shape Selecting the Shape menu item opens a submenu with the items Rectangle X Slice Y Slice and Polygon to choose the ROI shape Rectangle pug hand Sets the region shape to a rectangle with arbitrary dimensions To enter the rectangular region press the right mouse button drag a rectangle and release the button to define the region X Slice Sets the Region shape to the rectangle with maximum height Y Slice Sets the

Manual - FAST ComTec

Contents

Download Pdf Manuals

Related Search

Related Contents