PCA3 Multichannel Analyzer User`s Manual
Contents
1. 1FO 1F8 200 208 20 PCA3 I O Address Settings SW101 10 SW101 4 SW101 5 SW101 6 SW101 7 SW101 8 SW101 9 MCA board IO address 210 Factory default 218 220 228 230 238 240 248 250 258 260 268 270 278 280 288 290 298 2A0 2A8 2B0 2B8 2C0 2C8 2D0 2D8 2E0 2E8 2F0 2F8 300 308 310 21 Setting the I O Address PCA3 I O Address Settings Sw101 10 SW101 4 SW101 5 SW101 6 SW101 7 SW101 8 SW101 9 MCA board IO address 318 320 328 330 338 340 348 350 358 360 368 370 378 380 388 390 398 3A0 3A8 3B0 3B8 3C0 3C8 3D0 3D8 3E0 3E8 3FO 3F8 22 Request for Schematics Schematics for this unit are available directly from Canberra Write call or FAX Training and Technical Services Department Canberra Industries 800 Research Parkway Meriden CT 06450 Telephone 800 255 6370 or 203 639 2467 FAX 203 235 1347 If you would like a set of schematics for this unit please provide us with the following information Your Name Your Address Unit s model number Unit s serial number Note Sche2. MCA Full Memory ea e Figure 3 Defining the I O Address Steps 3 through 5 You won t see the screens for Steps 3 through 5 these steps are not used when setting up a PCA3 Step 6 The Step 6 screen in Figure 4 asks for a Detector Type and acquisition input size in channels and requires that an Input Name be entered Select the desired input size based on your application s needs and the availability of spectral memory up to 2K for PCA3 2K up to 8K for PCA3 8K and up to 16K for PCA EX MID Setup Wizard Step 6 Detector Type Ge pd Input Name oe TOI Number of Re lt Back Cancel Help Figure 4 Assign the Detector Type The MCA Input Definition Editor Ending the Definition To complete your Input Definition select Finish The input that you just defined will be stored as an MID file named inputname MID and automatically loaded into the Genie 2000 s MCA Runtime Configuration Database described in Using MCA Defi nition Tables in Chapter 3 MCA Input Definition of the Genie 2000 Operations Manual When you select Finish you will be asked if you would like to define an other input Answering No will close the Wizard Note that if you didn t enter an Input Name you won t be allowed to exit the Step 6 screen If the name you entered is the same as the name of an existing MID file the system will tell you so and go back to Step 6 to let you enter another name The M
3. nels Nal Range 12 5 nominal Resolution 0 25 channel nominal External ADC INTERFACE TTL interface cable rear panel DB 37 connector Multichannel Scaling MCS INPUT RATE Up to 10 MHz DWELL TIME Internal 10 us to 100 s external 10 us minimum SYNC Internal or External DEAD TIME 2 us between passes 2 us between channels Environmental PRESET 1 to 9 999 999 passes MCS INPUT Positive TTL rear panel DB 37 connector LOGIC INPUTS DWL positive TTL SYNC positive TTL rear panel DB 9 con nector LOGIC OUTPUT MSB positive TTL rear panel DB 9 connector Environmental OPERATING TEMPERATURE 0 to 50 C OPERATING HUMIDITY 0 80 relative non condensing Ordering Information PCA3 EX PCA3 Board with External ADC PCA3 2K PCA3 Board 2K PCA3 8K PCA3 Board 8K Requires Genie 2000 Basic Spectroscopy Software S502C or S500C sold seperately B Rear Panel Connector Pinouts I O Connector Pin Signal 1 BSY DWL 2 GATE 3 MCS REJ 4 EXTSY 5 GND 6 SCA 7 MSB BSY 8 CHSMPL 9 ROI Description For PHA External busy correction Positive TTL input For MCS External dwell advance Positive TTL input duration lt 30 ns interval gt 10 us latency lt 2 usec deadtime lt 2 us be tween channels Coincidence or Anti Coincidence TTL input pulse must occur gt 100 ns before peak and remain gt 30 ns after peak For PHA Pile up reject Positive TTL input Lat
4. are not available when an external ADC is in use To verify that the External ADC Interface is installed properly ensure that the 40 pin insulation displacement connector attached to the flat ribbon cable from the DB37S Rear Panel connector is installed on CN302A Install a C1704 10 interface cable from the rear of the computer to the External ADC External ADC Connector Pin YO Signal Comments 26 l ADCO DATA signals from ADC 27 ADCI 3 3 KQ to 5V 28 ADC2 29 ADC3 30 ADC4 31 ADC5 32 ADC6 8 ADC7 9 ADC8 10 ADC9 11 ADC10 12 ADC11 13 ADC12 7 ADC13 24 ADCRDY READY signal from ADC 3 3 KQ to 5V Data ready for storage 18 29 22 23 21 20 1 6 ADCINV ADCDT ADCACQ ADCTX ADCACK GND Rear Panel Connector Pinouts INVALID signal from ADC 3 3 KQ to 5V Prevents storage of data BUSY signal from ADC 3 3 KQ to 5V Stops Live Time Clock ENABLE signal to ADC TRANSMIT signal to ADC Enables ADC output buffers for data transfer ACKNOWLEDGE signal to ADC Clears ADC to continue C Setting the I O Address The PCA3 card is shipped from the factory with the most common settings for the ad dress switches set by SW101 a ten position DIP switch located at the top of the PCA3 card near the rear panel bracket see Figure 1 on page 3 Optional address switch set tings may be made with the following procedure When one of the SW101 switches is in the OPEN position the
5. logic level is 1 When the switch is CLOSED the logic level is 0 The seven switches numbered 4 10 se lect the base I O port address for the PCA3 card The PCA3 card is shipped with SW101 switches 5 and 10 in the OPEN position and all other switches in the closed position This setting is for a base I O port address of 528 210 If there is a conflict with another function in the PC at this I O address another ad dress may be selected The PCA3 card SW101 switches 4 10 allow base I O port ad dress selection in the range from 100 through 3F8 Note When the address switches are changed the Genie 2000 software must be configured to the new port address The table on the following pages lists the switch settings for all of the board s I O addresses Note SW101 1 SW101 2 and SW101 3 must be set to CLOSED or ON all the time A logic 1 in Table 1 means that the corresponding switch must be set to OPEN or OFF A logic 0 in Table 1 means that the corresponding switch must be set to CLOSED or ON Setting the I O Address PCA3 I O Address Settings SW101 10 SW101 4 SW101 5 SW101 6 SW101 7 SW101 8 SW101 9 MCA board IO address 100 108 110 118 120 128 130 138 140 148 150 158 160 168 170 178 180 188 190 198 1A0 1A8 1B0 1B8 1C0 108 1D0 1D8 1E0 1E8
6. peak at the low end of the spectrum for zero stabilization Gain or Zero Spacing Sets the spacing in channels between the upper and lower sampling channels The sampling channels should be placed so that a shift in the reference peak reflects a sig nificant change in count rate in the sampling channels For broad peaks the spacing should be set so that the sampling channels are not on the flat part of the peak Gain or Zero Mode Sets the Stabilization mode to Off which disables the Gain or Zero Stabilizer or On which enables the Stabilizer MCS Parameters The MCS settings screen Figure 7 for the PCA3 contains the following controls C ADC O Stab Dwell time 2 msec y Figure 7 Adjust Screen MCS Settings Note The MCS Adjust Screen and the associated selection button are avail able only if MCS was selected as the Acquisition Mode when setting up the MCA controls in the Devices MCA screen of the MID Editor If MCS was not selected the selection button and adjust screen are hid den from view Dwell Time Sets the MCS dwell time value ADC The ADC setting screen Figure 8 for the PCA3 contains the following controls This feature is available only for Models PCA3 2K and PCA3 8K Acquire Setup Screen TER Coinc mode LTC PUR sig Offset en Off AntiCo C Int E Frey Coincidence i al Figure 8 Adjust Screen ADC Settings Coincidence Mode Sets the coincidence mode for t
7. with us you may not sell distribute or otherwise transfer the software This license allows you to use the software on only one computer at a time You must get our written permission for any exception to this limited license BACKUP COPIES Our software is protected by United States Copyright Law and by International Copyright Treaties You have our express permission to make one archival copy of the software for backup protection You may not copy our software or any part of it for any other purpose Revised 01 00
8. CA Input Definition Editor Most users will not need to use the MCA Input Definition MID Editor The MID Ed itor allows you to create edit and manage input definitions However for most users the facilities provided in the MID Wizard are sufficient You ll have to use the MID Editor only if you want to change any of the parameters listed below from their default values e Dwell Time for MCS mode Note that this parameter is also adjustable within the Gamma Acquisition and Analysis application e Coincidence Mode and Dead Time Mode for the Models PCA3 2K and PCA3 8K with internal ADC e Multiple Memory Groups are selectable only from within the MID Editor The editing procedure is described in Editing an MCA Definition in the MCA Input Definition chapter of the Genie 2000 Operations Manual That chapter also has detailed information on using the MID Editor The MCA Adjust Screens The MCA Adjust Screens which are accessed from the Gamma Acquisition and Anal ysis application s Menu Bar allow you to adjust the PCA3 s programmable controls You may access the MCA Adjust screens after having defined an MCA Input Defini tion MID as instructed above Start the Gamma Acquisition and Analysis program contained in the Genie 2000 folder open your detector datasource you just have de fined and use the MCA Adjust menu option Setup and Configuration As adjustments are made in the dialog box the new values are
9. ECT OR CONSEQUENTIAL LOSSES OR DAMAGES OF ANY NATURE WHATSOEVER WHETHER AS A RESULT OF BREACH OF CONTRACT TORT LIABILITY INCLUDING NEGLIGENCE STRICT LIABILITY OR OTHERWISE EXCLUSIONS Our warranty does not cover damage to equipment which has been altered or modified without our written permission or damage which has been caused by abuse misuse accident or unusual physical or electrical stress as determined by our Service Personnel We are under no obligation to provide warranty service if adjustment or repair is required because of damage caused by other than ordinary use or if the equipment is serviced or repaired or if an attempt is made to service or repair the equipment by other than our personnel without our prior approval Our warranty does not cover detector damage due to neutrons or heavy charged particles Failure of beryllium carbon composite or polymer windows or of windowless detectors caused by physical or chemical damage from the environment is not covered by warranty We are not responsible for damage sustained in transit You should examine shipments upon receipt for evidence of damage caused in transit If damage is found notify us and the carrier immediately Keep all packages materials and documents including the freight bill invoice and packing list Software License When purchasing our software you have purchased a license to use the software not the software itself Because title to the software remains
10. Model PCA3 Multichannel Analyzer User s Manual 9231563B 9 00 ISO 9001 SYSTEM C E CERTIFIED Copyright 2000 Packard BioScience Company All rights reserved The material in this manual including all information pictures graphics and text is the property of Packard BioScience Company and is protected by U S copyright laws and international copyright conventions No material in this manual may be reproduced published translated distributed or displayed by any means without written permission from Canberra Industries a division of Packard BioScience Company Canberra Industries 800 Research Parkway Meriden CT 06450 Tel 203 238 2351 FAX 203 235 1347 http www canberra com The information in this manual describes the product as accurately as possible but is subject to change without notice Printed in the United States of America Table of Contents 1 Introduction 1 Model PCA3 EX External ADC Version 2 2 ee 1 Models PCA3 8K and PCA3 2K Internal ADC Versions 02004 1 Software Support i se eee cae we ee ERE E Ew SEE OR ER eee Re Oe eS 2 Setup and Configuration 3 Unpacking s s sia br a ar da ee dd ale ee a al i 3 Installation s i ga gela GSS eS ae e a e a A 3 Creating an MCA Input Definition 4 The MID Wizard ws 24 6 Ra ee A we Be A n de ek 5 The MCA Input Definition Editor s o soe s as ecua eo mnai ai ero a a 7 The MCA Adjust Screens i sow eke a a ia dd 7
11. ched if true af ter input pulse crosses input discriminator and before peak de tect Evaluated at peak detect Must be gt 50 ns after input crosses input discriminator lt 100 ns before peak detect dura tion gt 30 ns For MCS MCS data Positive TTL input pulse lt 10 MHz du ration gt 30 ns Enable acquisition signal Positive TTL input Internally pulled high Ground Single channel analyzer Positive TTL input Internally pulled high Single channel analyzer Positive TTL output pulse 200 ns width For PHA Busy indication PositiveTTL output Normal Deadtime mode The OR of the input discrimator ADC busy and External BSY input External Deadtime mode Uses BSY input only for dead time control For MCS Most Significant Bit or MCS address Positive TTL output Sample changer advance Positive TTL output Event Storage indicator Positive TTL output adjustable width 4 to 35 us External ADC Interface External ADC Interface The PCA3 External ADC Interface is designed to interface the PCA3 to external stand alone NIM type ADCs offered by Canberra The External ADC Interface sup ports up to a 14 bit 16 384 channel ADC with a 24 bit deep histogram data memory The External ADC Interface is accomplished through the DB37S Rear Panel connec tor Many of the features available for the Internal ADC are also available for the External ADC such as group control However conversion gains offsets and DSS
12. error open the Status Page by clicking MCA Status in the Acquisition and Analysis window The problematic item will be marked with an asterisk Each of the following sections describes one of the PCA3 parameters that can be changed in the Gamma Acquisition and Analysis GAA application Adjust dialog To change a parameter click on MCA Adjust in the GAA application s Main Menu then select the radio button for the parameter you want to change Stabilizer Parameters PCA3 2K and PCA3 8K only The Stabilizer settings screen Figure 5 for the PCA3 contains the following controls The MCA Adjust Screens Gain centroid LU HH Gain spacing Och DK Ochs gt 8192 Figure 5 Adjust Screen Stabilizer Settings Note Zero controls Zero Mode Zero Centriod and Zero Spacing are on the second page of controls Figure 6 shows the relationship between the Stabilizer s Centroid and Spacing on a typical peak for both Zero Stabilization and Gain Stabilization See Stabilizer in Chapter 4 Gamma Acquisition and Analysis of the Genie 2000 Operations Manual for a detailed explanation of how a Stabilizer is used Spacing Centroid Figure 6 Relationship Between Stabilizer Functions Gain Centroid Sets the centroid in channels of the reference peak at the high end of the spectrum for gain stabilization Setup and Configuration Zero Centroid Sets the centroid in channels of the reference
13. gh speed Models 8713 or 8715 fixed dead time ADCs Models PCA3 8K and PCA3 2K Internal ADC Versions Where the convenience of an internal ADC is preferred the PCA3 can be obtained in versions with an integral 8K or 2K ADC The internal ADC is a fully buffered Wilkinson Type with 100 MHz clock speed Conversion gain can be set to 2K 1K 512 or 256 channels for either unit plus 4K or 8K for the PCA3 8K unit Introduction Software Support The PCA3 is fully supported by Canberra s trend setting Genie 2000 software product family Genie 2000 supports a wide range of time proven spectral analysis algorithms modern spectrum display and user interface as well as a variety of special applications programs Genie 2000 software solutions are available for applications ranging as widely as laboratory gamma and alpha spectroscopy waste measurement whole body counting and nuclear safeguards 2 Setup and Configuration Unpacking Unpack your PCA3 MCA board carefully and examine it carefully for evidence of damage caused in transit If damage is found notify Canberra and the carrier immedi ately Remove the small insulator installed between the battery and the battery contact See Figure 1 Battery Sw101 se JI VV VV VV VVTV Figure 1 PCA3 Board Layout Installation Before installation read Setting the I O Address on page 19 so that the address switches may be changed if necessary before the card is p
14. he external Gate signal when external gating is used LTC PUR sig Int PUR LTC Enables the PCA3 internal live time correction and pile up rejection circuitry Off Ext PUR Disables the live time correction and pile up circuitry of the PCA3 Expects a live time dead time signal from an external source via the BSY DWL in put Offset Sets the ADC s digital offset in channels Acquire Setup Screen The Gamma Acquisition and Analysis application s Acquire Setup Screen is described in detail in the Genie 2000 Operations Manual However the External Start option on this screen is of particular significance at this time Checking External Start enables the PCA3 s External Sync function which works in conjunction with the EXTSY signal at the rear panel I O port In PHA mode a positive TTL level enables data acquisition and the Real Time and Live Time clocks In MCS mode a positive TTL pulse starts restarts a sweep A Specifications Note For a more detailed description of Input and Output Connectors refer to Appendix B Rear Panel Connector Pinouts Board Configuration Full length ISA compatible plug in card Processor Intel 80C188 10 MHz clock ROM 128K x 8 RAM 64K x 8 data RAM 32K x 8 processor RAM Inputs LOGIC SIGNALS Rear panel DB 9 connector GATE TTL Coincidence or Anticoincidence REJECT Positive TTL Pileup reject BUSY Positive TTL External busy SYNC Positive TTL Enable acqui
15. hysically installed in the computer The PCA3 may be installed in the target PC by using the following proce dure 1 Turn OFF the power to the computer to prevent damage to the computer and the PCA3 card 2 Remove the cover from the computer Consult the reference manual supplied with the computer for proper instructions on removing the cover Setup and Configuration 3 The PCA3 may be inserted into any available ISA slot Remove the retaining screw and lift out the blank panel from the chosen slot 4 To insert the PCA3 card the panel end of the card must be tilted downward as the card is inserted into the computer When the BNC connector has cleared the rear panel cutout the rear of the board may be rotated downward until the card is parallel to and centered above the card edge connector Use moderate downward pressure to seat the PCA3 card in the edge connector 5 Replace the panel retaining screw in the PCA3 card panel and tighten 6 Replace the computer cover by reversing the procedure in step 2 7 Reapply power to the computer and boot the operating system software 8 Install the Genie 2000 Basic Spectroscopy software according to supplied Genie 2000 software manuals 9 Refer to Creating an MCA Input Definition on page 4 for complete operating instructions Creating an MCA Input Definition After you have installed the Genie 2000 software the first step in using your PCA3 MCA board is to create an MCA Input Def
16. inition MID MID Wizard or MID Editor For most cases you ll use the MID Wizard to help you set up your Input Definition quickly and easily If your Input Definition is more complex than the MID Wizard was designed to handle i e multiple PCA3 boards or other MCAs within a single PC you ll use the MID Ed itor page 7 to create or change your definition The MID Wizard The MID Wizard To use the MID Wizard open the Genie 2000 folder and select the MID Wizard icon to start the definition process Step 1 The first screen Figure 2 lets you select the MCA you want to create a definition for Select the corresponding PCA3 model from the list of MCAs 2K board 8K board or external ADC version MID Setup Wizard Step 1 To start select an MCA device from the list below Available MCAs InSpector 2000 via I2K USB InSpector Nal InSpector Cancel Help Figure 2 Selecting the MCA Step 2 The setup screen will ask you to define the MCA board s I O Address as shown in Fig ure 3 By default the PCA3 has an I O address of 0210 hex See Setting the I O Ad dress on page 19 for instructions on changing the address The I O Address defined by the setting of switch SW101 must match the address defined in the MID Setup and Configuration MID Setup Wizard Step 2 Enter 1 0 and memory addresses of the MCA Cik Ck Ca4k CB CIB 32k 120 Address Hex Acq Mode 0210 E PHA MCS
17. lications can be addressed by installing multiple PCA3 boards maximum eight into a single computer The PCA3 is suitable for use with a wide range of radiation detectors Selecting a proper preamplifier amplifier and high voltage power supply makes the PCA3 com patible with Nal TD HPGe SiLi CdTe Ion Implanted Plastic scintillation BGO and other detector technologies A two point digital stabilizer is included to ensure system stability under a range of count rates and temperature variations Gain and zero stabilization are independently controlled to lock on high and low energy peaks respectively in the spectrum Sepa rate ranges for HPGe and Nal detectors ensure that stabilizer will operate correctly with either detector type For added flexibility the PCA3 supports both pulse height analysis PHA and multi channel scaling MCS modes of operation In MCS mode a single channel analyzer SCA output is enabled as well as a SYNC input that allows acquisition to be syn chronized by external apparatus Input rates of up to 10 MHz are supported Model PCA3 EX External ADC Version For applications requiring no compromises performance in terms of count rate reso lution and temperature stability the PCA3 can be paired with a Model 2060 Digital Signal Processor DSP For applications where requirements are not as stringent but where high performance ADCs are still desirable choose the Model 8701 Wilkinson ADC or the hi
18. matics are provided for information only if you service or repair or try to service or repair this unit without Canberra s written permission you may void your warranty f A CANBERRA Warranty Canberra s product warranty covers hardware and software shipped to customers within the United States For hardware and software shipped outside the United States a similar warranty is provided by Canberra s local representative DOMESTIC WARRANTY Canberra we us our warrants to the customer you your that equipment manufactured by us shall be free from defects in materials and workmanship under normal use for a period of one 1 year from the date of shipment We warrant proper operation of our software only when used with software and hardware supplied by us and warrant that our software media shall be free from defects for a period of 90 days from the date of shipment If defects are discovered within 90 days of receipt of an order we will pay for shipping costs incurred in connection with the return of the equipment If defects are discovered after the first 90 days all shipping insurance and other costs shall be borne by you LIMITATIONS EXCEPT AS SET FORTH HEREIN NO OTHER WARRANTIES WHETHER STATUTORY WRITTEN ORAL EXPRESSED IMPLIED INCLUDING WITHOUT LIMITATION THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE SHALL APPLY INNO EVENT SHALL CANBERRA HAVE ANY LIABILITY FOR ANY SPECIAL INDIR
19. sent to the PCA3 To save the adjustments to the datasource s CAM file use the Gamma Acquisition and Analysis application s File Save command so that the next time this datasource is se lected the proper setting will be loaded into the PCA3 The Next and Prev ious buttons at the left side of the Adjust screen are used to move to the next or previous page of the controls when there are more control elements than will fit in the basic box To access the Adjust screens a PCA3 datasource must have been opened To open se lect File Open Datasource then select Detector in the Type box Next select the datasource file and click on open Note If you get a Required Hardware Unavailable error possible causes are selecting the wrong datasource for the instrument an I O address mismatch see instructions above or an I O address conflict means that the selected I O address is already in use by some other device within your PC In case of an I O address conflict use the I O address switch SW101 to set your PCA3 s address to another free one If you get a Hardware Verification Error there is a mismatch between the MID Definition setup and the hardware configuration You can choose to accept or not accept the verification error in the associated dialog box If you select NO a RED error box will appear in the top left corner of the Gamma Acquisition and Analysis window To determine the source of the verification
20. sition Outputs LOGIC SIGNALS Rear panel DB 9 connector BUSY Positive TTL ROI Width and amplitude adjustable pulse Data Acquisition SCA Positive TTL pulse CH SMPL Positive TTL pulse Data Acquisition ADC CHANNELS 16 384 configurable as one 16K channel group two 8K channel groups PCA3 with external ADC only four 4K channel groups eight 2K groups sixteen 1K groups thirty two 512 channel groups or sixty four 256 channel groups CONNECTOR Rear panel BNC CONVERSION RATE Fully buffered 2K 8K channel Wilkinson ADC with 100 MHZ clock CONVERSION GAIN 8K 4K 2K 1K 512 256 computer selectable RANGE From 0 to 10 V unipolar or bipolar positive lobe leading RISETIME 0 5 us to 30 us INTEGRAL NONLINEARITY lt 0 05 over top 99 of range DIFFERENTIAL NONLINEARITY lt 1 over top 99 of range GAIN DRIFT lt 100 ppm C ZERO DRIFT lt 50 ppm C of full scale DIGITAL OFFSET Selectable in 256 channel blocks from 256 to 7936 Live Time Clock RESOLUTION 10 ms type LTC Specifications Presets REAL TIME 1 to 9 999 999 seconds LIVE TIME 1 to 9 999 999 seconds SCA 15 turn rear panel potentiometers ZERO Adjustable LLD lt 1 to 105 of full scale ULD 0 to 105 of full scale Digital Stabilizer Internal zero and gain stabilization HPGe Range 3 1 nominal Resolution 0 0125 channel nominal at 8192 chan
21. stabilizer Parameters oaos a dee ben ee a Gy e A a he oe Be De 8 MCS Parameters i ace ga e Rh ne ee He Ree eh ee Oe OR ee 10 PDC sr Boe ek Ree eas be e BE ee Adee Ae re eae 10 Acquire Setup Screens aise Soe eo a Ra Ree SAD eae ea OS Meee RO ew be bes 11 Specifications 12 Board Configuration s s sosya esasa a CR bep ba ue ee ee ee 12 Processor vga Sd A OR A ie Bk Soe DE eects 12 A eh ee Pelee Ale OR EG AR Ree eae Reales es whe tee 12 OUIPU S i RE REERER ERM ERLE a REE EE HS ODE RES 12 Data Acquisition saar 2 tow te go et ewe E Ee oh ek 13 ADC 23 2 560 ea SEE AER AA e OG ES Re SSeS OS 13 Live Tame Clock mo para lei 4 BN da oe eo Hw oe ees So a ae oe A eS A 13 Presets aia ae hk ee a ee ee ee te Oe eh ee oda 14 SCA breer a eb A 14 Digital Stabilizer rs gf bal Gd ee eee oe eee a Re ea Se ee 14 External ADC ou 24 Sees FARE ga See ded PERO REA eR ER OE wee 14 Multichannel Scaling MES tos cto a Ble GE RO a e Sw ROTA a 14 Environmental Ordering Information B Rear Panel Connector Pinouts Y O Connector External ADC Interface C Setting the I O Address 1 Introduction The PCA3 MCA meets the need for a cost effective mid performance general pur pose Multichannel Analyzer Packaged in a plug in PC board the PCA3 is available in three versions 8K and 2K units with internal ADC and a 16K version for use with an external Canberra ADC Multiple input app
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