S507 MGAU for Genie-2000 User`s Manual
Contents
1. Relative abundance to Pu 239 Percent error in relative abundance to Pu 239 Percent error in relative abundance ratio Weight percent at measurement time if PRMGAUMGAOUT is set otherwise it is the U xxx concentration for high U 235 concentration Percent error in weight at measurement time Weight percent at declaration time Percent error in weight at declaration time Covariance matrix for the abundance uncertainties 2n 1 where n is the number of isotopes C MGAU Error Messages The following error messages may be generated by the MGAU program 101 103 104 106 117 122 123 196 Input datasource not specified 0 the low energy datasource was not added on the command line Invalid switch was specified 0 illegal command line argument was de tected Duplicate switch was specified 0 same qualifier was entered twice on the command line Too many switches were specified 0 too many switches were added on the command line Error while opening specified input datasource x error during opening of the low or high energy datasource x equals the type of SAD error Error during CAM write operation x error when dumping one or more CAM parameters into the low energy datasource The value of x stands for the storage phase 1 Reset of MGAU results flag MGAFLAGS 2 Variable type CAM parameters MGAVERSION up to MGAERRB of above output list 3 5 U xxx anal2. MGAU Error Messages eee eee ss es 13 D Example MGAU Reports s 16 A Typical Standard Mode Report u s amk e aa a e e a a ee 16 A Typical Enrichment Meter Analysis Report 22e 17 1 Introduction This document describes how to install and operate the Multi Group Analysis for Ura nium MGAU application for the Genie 2000 environment The MGAU application analyzes the Ge spectra of uranium samples and reports the rela tive abundances of the uranium isotopes in the sample The basic Gamma Acquisition and Analysis application requires a spectrum to be energy and efficiency calibrated be fore analysis and sequentially calls several analysis algorithms to perform the analysis MGAU only requires that the spectra be energy calibrated and it performs its entire anal ysis in one step Beginning with V2 1 MGAU is also capable of determining the 235U enrichment of a sample by the traditional enrichment meter method of analysis Beginning with V2 1 the enrichment method was added because it continues to be the only practical nonde structive method for analyzing uranium samples that are not in equilibrium with their daughter products or that are contained in thick highly absorbing steel containers However the enrichment meter method does require that the detector system be cali brated before analyses can be performed on unknown samples Furthermore the method usually can be used only
3. Uncertainty in declared value Enter the uncertainty of the declared enrichment as an absolute value if known Otherwise enter zero Calibration File Press the Select button to choose a file that was previously calibrated in MGAU If you do not specify a calibration file name the calibration information stored in the spectrum data file will be used Check the check box marked Generate Report to obtain a default report to the screen Select the Execute button to start the analysis If any of the input parameters are not ac ceptable you will be prompted to correct those items MGAU Report To see the report choose Reporting from the list of Manual analysis phases then se lect the MGAU TPL template and the MGAU section 4 MGAU Batch Commands The following syntax is used for the MGAU batch command MGAU lt datasource gt Qualifier s The lt datasource gt is required the qualifiers are optional If just the HELP qualifier is used the datasource definition is not required Qualifiers ID lt description gt Specifies a sample identification text string Up to 16 characters in quotes is allowed for this parameter The information is stored in the datasource as the parameter SIDENT sample identification If this qualifier is omitted the existing spectrum id remains unchanged ENRICH This qualifier is mutually exclusive with the NOENRICH qualifier Turns on the enrichment meter mode If this qualif
4. the MGAU step is followed by some other step checking the Ignore fatal MGAU errors checkbox will permit the analysis sequence to continue even if the MGAU analysis ends in an error Likewise if an analysis sequence includes both an MGA step should be executed first and an MGAU step check the Exit if MGA results present checkbox to prevent the possible deletion of the MGA results Finally check the Store MGAU results in MGA format checkbox if any steps in the analysis sequence that follow the MGAU step expect the results to be in the MGA for mat Enrichment Mode Inputs The enrichment mode inputs are only used for the Enrichment Meter Analysis mode and the Enrichment Meter Calibration mode Fe thickness Enter the thickness in mm of any steel or iron material such as the sample container between the sample and the detector If there is no material enter Zero Note that if zero is entered the system will ask you to confirm your entry Fe density Enter the density in g cm of any steel or iron between the sample and the detector If there is none enter zero Operation Al thickness Enter the thickness in mm of any aluminum material such as a sample container between the sample and the detector If there is no material enter zero Note that if zero is entered the system will ask you to confirm your entry Declared U 235 enrichment Enter the declared enrichment of 235 U if know Otherwise enter zero
5. when measuring samples with several mean paths of sample thickness at the 186 keV gamma ray energy so called infinitely thick criteria Version 2 1 is also capable of analyzing samples containing thorium Such samples produce several additional peaks including thorium x rays that directly interfere with the peaks that are analyzed in the 89 100 keV region These versions also account for the daughter prod ucts interferences of U when analyzing samples containing uranium ore Version 2 2 allows extended range detectors to be configured with 8K or 16K channels MGAU will determine uranium enrichment from the lower 4056 channels of the spec trum standard gamma spectroscopy can be used to analyze the extra range MGAU has always been able to analyze uranium ore where the daughters interfere with the analysis In the case of old samples the buildup is not as significant as in uranium ore and the algorithms for the presence of daughters were not invoked resulting in an in correct enrichment value This weakness has been corrected in version 3 2 which will now give correct results for very old uranium samples 2 Installation To install MGAU on your computer open an Windows 95 98 Me NT 2000 XP com mand window insert the installation disk into a floppy drive and type a setup If you are using drive b type b setup 3 Operation In the batch environment see MGAU Batch Commands on page 7 the datasource s mus
6. MGAU results to be stored in MGA format in a different set of CAM parameters allowing other algorithms to treat MGAU results as if they were from MGA B MGAU Output Parameters The following MGAU calculations results are stored into the CAM parameters Common Parameters common results ENRICHCAL93 ENRICHCAL186 MGAVERSION QFIT NQFIT FWHM122 U235RECNO U238RECNO MGAFLAGS MGAERROI MGAERR25 MGAERRA MGAERRJ 93 keV enrichment meter calib factor output in enrichment calibration mode input in enrichment meter mode 186 keV enrichment meter calib factor output in enrichment calibration mode input in enrichment meter mode MGA version information 16 characters Regular goodness of fit Intensity normalized goodness of fit FWHM at 122 keV in eV The record number of the U 235 analysis results makes reporting easier The record number of the U 238 analysis results for reporting O no results 12MGA analysis done and results exist Error number 1 occurred 1 did not occur 0 Error number 25 occurred 1 did not occur 0 Error amplification A Error amplification J Note Most error messages are handled by the report template because their positions in the error array are fixed 11 12 MGAU Output Parameters Record Parameters results for each isotope VARNAME RELABN DRELABN DRELABNR WGTPCTM DWGTPCTM WGTPCTD DWGTPCTD VCVM1 VCVM16 Isotope name e g Pu 238 Am 241
7. Model 507 MGAU for Genie 2000 User s Manual 9230992D V3 2 ISO 9001 SYSTEM C CERTIFIED Copyright 2003 Canberra Industries Inc All rights reserved The material in this document including all information pictures graphics and text is the property of Canberra Industries Inc and is protected by U S copyright laws and_ international copyright conventions No material in this document may be reproduced published translated distributed or displayed by any means without written permission from Canberra Industries Canberra Industries 800 Research Parkway Meriden CT 06450 Tel 203 238 2351 FAX 203 235 1347 http www canberra com The information in this document describes the product as accurately as possible but is subject to change without notice Printed in the United States of America Windows and Windows NT are trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Table of Contents 1 Introduction a ca oe wd re te a a s s x 1 2 Installation wende oe T o x 9 X 0X OHS so ON sos s Re De on 2 3 ODEON xx 9o ee cae we Se ee See B3 AO SOLE m us 3 RESTACUONS 502 c6 x aie Al as be we aa aces bo fd ala ue d 3 Interactive Node 2 26 t fue a Eo m Rabb Reni murio h Z S ee ee oe di A 4 4 MGAU Batch Commands 7 A MGAU Input Parameters 9 B MGAU Output Parameters 11 C
8. U version MGAU V2 1 CI Spectrum ID MGU00027 CNF Acquisition date 9 22 95 Live Time 10 0 Mins Sample ID samstd0108 Dead Time 5 37 96 FWHM at 122 keV 583 eV Total counts 1 054E 06 Operator manager Detector DETO1 235U Enrichment Meter value 2 035 1 4 Measured declared difference 0 28 or 0 2 Std Devs Fe container wall thickness 0 46 mm 93 keV enrichment meter calibration factor 0 000E 00 186 keV enrichment meter calibration factor 1 993E 05 Messages Notes Errors quoted at 1 000 sigma 17 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 ship
9. e or time for datasource acquisition date amp time Number of counts in low energy spectrum too low 0 the datasource does not contain enough counts bad spectrum Total counts less than 10 000 Improper functioning of MGAUPC program x a problem occurred during the execution of the MGAUPC program x reflects the following situations 1 c4 A program spawning error occurred for more information see DosExecPgm return values in the CP reference c8 temporary file access error when MGAUPC tried to read the stored information c9 MGAUPC did not store any analysis results at all in the temporary file cb MGAUPC did receive an illegal live time cc MGAUPC returned an illegal value for one of the error and warning flags 98 or 185 keV peak not found or too small x MGAUPC could not find one of the indicated calibration peaks The parameter x represents the follow ing situations 1 185 keV peak not found 211 212 213 214 215 216 217 218 219 220 221 222 2 98 keV peak not found 3 98 keV peak too small Pu is detected use MGA application 0 92 93 keV peak intensities too small Detector not calibrated to determine Fe thickness System not calibrated for enrichment meter analysis 186 keV peak calibration constant incorrect FWHM at 122 keV exceeds maximum value specified Spectrum exceeds 1 e10 counts Non zero declared U 235 value mus
10. er conversion gain is used only the lowest 4K channels of the spectrum are used in the analysis The single spectrum energy calibration gain setting for a 4K spectrum must be within 0 005 keV channel of the nominal 0 075 keV channel For larger spectra e g 8K or 16K channels the Genie 2000 energy calibration is used Operation This version of MGAU supports the file formats supported by the basic Genie 2000 Other file formats must be converted to the CAM format with the FILECNVT batch command refer to the Batch Procedure Reference chapter of the Model S561 Batch Pro cedure Support Reference Manual No graphic output of the fits to the screen is sup ported The MGAU application which is available as a batch command or as an analysis algo rithm analyzes spectra containing only uranium If plutonium is present it returns an er ror code Interactive Mode MGAU can be started from the Gamma Acquisition and Analysis application s Analyze menu To use MGAU from within this window 1 Open a datasource 2 Select the Analyze Menu from the Gamma Acquisition and Analysis menu bar to see the list of analysis phases 3 Select MGAU from the MGA MGAU menu item You ll see the setup screen shown in Figure 1 BiU Analysis Setup r Analysis Mode Standard Enrichment meter analysis Enrichment meter calibration Analysis Options V Ignore fatal MGALU errors PF Exit if MGA results present F Store MGAU re
11. file control execution of the program parame ter names are followed by descriptions PRMGAANALTYP Type of analysis 8 characters always set to STD ECSLOPE Gain of the spectrum should be around 0 075 ECOFFSET Energy of the zero channel of the spectrum energy offset MGAUCALFAC MGAU calibration factor PRMGANOABORT Always return success status except for I O errors PRMGAUUSEMGA Perform no processing if valid MGA results are already present PRMGAUMODE Analysis mode 0 Standard 1 Reserved 2 Enrichment meter 3 Reserved 4 Enrichment calibration PRMGAU235FCT 2357 fluorescence factor PRMGAU238FCT 2387 fluorescence factor ENRICHCAL93 93 keV enrichment meter calibration factor input in enrichment meter mode output in enrichment calibration mode ENRICHCAL186 186 keV enrichment meter calibration factor input in enrichment meter mode output in enrichment calibration mode PRMGAUFE Fe thickness mm PRMGAUFEDENS Density of Fe container PRMGAUAL Al thickness mm PRMGAU186SR Maximim channel search for 186 keV peak PRMGAU93PKRT Minimum 93 keV peak height to backgroud ratio 10 PRMGAU 122FW PRMGAU208SEN MGAUCALFILE PRUENRICH PRUENRICHERR PRMGAUMGAOUT MGAU Input Parameters Maximum permissible FWHM in keV at 122 keV Sensitivity for detecting 208 keV peak of Aly Name of MGAU calibration file for enrichment meter mode Declared value of U percent Error in declared 225U Causes
12. ier is used in the analysis mode but the calibration parameters are not included in the datasource an error will be generated If this qualifier is used in the calibrate mode but the declared enrichment is not provided execution will stop and an error message will be generated NOENRICH This qualifier is mutually exclusive with the ENRICH qualifier Forces standard mode analysis no enrichment CALIB This qualifier which turns on the enrichment meter calibrate mode requires that the ENRICH qualifier be used If this qualifier is not specified and the ENRICH qualifier is used the enrichment meter analysis mode is assumed DECL lt value gt This qualifier specifies the uranium enrichment in percent The value must be a positive number greater than zero This qualifier must be specified for enrichment meter calibration calculations FETHICK lt value gt Specifies the Fe thickness in mm between the source and the detector MGAU Batch Commands FEDENS lt value gt Specifies the Fe density in g cc ALTHICK lt value gt Specifies the Al thickness in mm between the source and the detector excluding the detector end cap DECLERR lt value gt The error in the declared uranium enrichment CALFILE lt filename gt The fully specified pathname of the MGAU calibration file HELP Displays help text for this command A MGAU Input Parameters The following parameters from the CAM
13. ping 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 IN NO EVENT SHALL CANBERRA HAVE ANY LIABILITY FOR ANY SPECIAL INDIRECT 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 recei
14. pt 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 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 1 00
15. sults in MGA format r Enrichment Made Inputs o Fe thickness mr o Fe density g crn3 p At thickness mm o Declared U 235 enrichment o Uncertainty in declared value MGAU Calibration File Select Cancel Help P Generate Report Execute Figure 1 MGAU Analysis Setup Interactive Mode Analysis Mode Choose the analysis mode by selecting one of the buttons in this group Each mode is fully described elsewhere in this manual In the Standard Analysis Mode you may enable any of the analysis options see below Enabling them is useful when building analysis sequences that are executed by external REXX procedures They have very little impact on normal interactive analyses In the Enrichment meter Analysis Mode a calibration file must be given The other Enrichment meter inputs see below are optional Naturally if the sample is in a steel container the container thickness and density should be given In the Enrichment meter calibration Analysis Mode the declared ENT percentage enrichment must be given the other enrichment meter inputs see below are optional Naturally if the sample is enclosed in a container the container wall thickness its density if steel and or type Fe versus AI should be entered for proper calibration Analysis Options The Analysis Options checkboxes allow you to change the way the software behaves when used in analysis sequences If
16. t be specified Fe thickness value must be greater than or equal to 0 0 Fe density value must be greater than or equal to 0 0 Al thickness value must be greater than or equal to 0 0 Error in declared enrichment must be greater than or equal to 0 0 15 D Example MGAU Reports A Typical Standard Mode Report 16 LELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDLLLDLLLLLLLLL doter MGAU REPORT doter A e K K K ode ole ode ode ole ole K K o od ode K ole K K ole K ole le K K K ode ole K K K K K K K K K K K K K KK ole K K K K K ode K K K ale Report generated on MGAU version MGAU V2 1 CI Spectrum ID MGU00027 CNF Sample ID samstd0108 Operator manager 1 27 97 3 02 42 PM Acquisition date 9 22 95 Live Time 10 0 Mins Dead Time 5 37 FWHM at 122 keV 612eV Total counts 1 054E 06 Detector DETO1 Isotope Abundance Uncertainty U 234 0 008 0 004 52 801 U 235 2 104 0 051 2 422 U 238 97 888 0 051 0 052 Messages Notes Errors quoted at 1 000 sigma A Typical Enrichment Meter Analysis Report A Typical Enrichment Meter Analysis Report FEK E gt F gt gt F F K K K K R E R R R R ERROR ER K K K K K K K K ER K K K K K KK K K K K K ER K K K KK K K K K K K K K OR doter MGAU REPORT sees Phe gt 2s gt gt F gt gt gt F E E E R R E 28 k ER R ERROR ER E K K K E K K K EER K K K OOOO OR Report generated on 1 27 97 11 13 38 AM MGA
17. t be specified in the command to execute MGAU In the Gamma Acquisition and Analysis application the datasource is specified with the File Open datasource menu option If the datasource s are uninitialized for MGAU parameters the defaults shown in Ap pendix A MGAU Input Parameters are assumed Otherwise the parameter values in the datasources are used To ensure that the analysis algorithms work correctly when MGAU is analyzing the ura nium spectrum the 98 keV and 185 keV peaks emitted by all uranium samples must be present If they are not found they do not exceed the uncertainty threshold the uranium spectrum cannot be analyzed Consequently the program issues an error message indicat ing that the marker peaks were not found In batch mode and in the Interactive mode run the general purpose report program to produce the desired report Appendix C MGAU Output Example shows a typical MGAU report The Report program s standard syntax allows you to specify the report template file name and section where to direct the report and so on Refer to the Report Template Files chapter in the Genie 2000 Customization Tools Manual for details Restrictions V3 2 of the MGAU program for Windows requires that Model S500 Model S502 or Model 8504 Genie 2000 Basic Spectroscopy software V2 0 or later already be installed on your computer MGAU is designed for a single detector mode only and is limited to 4K spectra if a high
18. ysis results 6 MGAU error message flags MGAERROI up to MGAUERRIO of the above output list 7 Setting of MGAU results flag MGAFLAGS to 2 Error during CAM read operation x error when reading one or more CAM parameter from the low or high energy datasource The value of x stands for the input phase a Datasource sample information CAM parameters CHANNELS up to SIDENT of above input list b Spectral data of datasource Unable to allocate memory x x represents the program phase where a memory problem occurred 1 Spectral data 2 Low energy datasource MGAU analysis information 13 197 201 202 205 209 210 MGAU Error Messages 3 MGAU analysis results 4 MGAUPC info message data Number of channels too high 1 number of channels is higher than 4096 Only 4K spectra are supported Error during access of temporary parameter file x a file access error on the temporary file MGAINFO TMP occurs during the operation represented by x 1 File opening error during info dump by MGAU 2 File write error during the dump of datasource analysis information 3 File write error during dump of spectral data 4 File close error during info dump by MGAU 5 File opening error during analysis results read by MGAU 6 Error during analysis results read by MGAU 7 File close error during analysis results read by MGAU Invalid acquisition sampling date 2 invalid dat
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