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identiFINDER NGH

1. 219 ke 8 88 ces Neutrons FINDER IDENT OPTIONS Figure 21 Activity mode for Iodine measurements The display shows the calculated Iodine activity if the identiFINDER is PA in 1 meter distance from the patient The usage of the unit Bq is advisable only after prior consultation of the manufactory including special calibration and training of the operator User s Manual 30 identiFINDER 7 5 Alarm Options Selecting the Alarm Options the following display Figure 22 or similar will appear GH ALARM OPTIONS Os m Ly Doserate Alarm Ly Neutron Alarm Ly DOWN SELECT Figure 22 Display after selecting Alarm Options Alarm Indications This type of identiFINDER instrument has three alarm indications Figure 23 Sound acoustic alarm Vibrate silent alarm Light red LED for visual alarm If the alarm sound is switched off also the button click tone will not be available ALARM INDICATIONS i E m i Light ON DUHH SELECT BACK Figure 23 Alarm Indications menu User s Manual 37 identiFINDER To change the alarm indication settings mark the related entry by moving the frame DOWN Unlock the entry to make the amendments SELECT Modify the actual setting by or and save the final setting ACCEPT A In course of changes the step size which is effected by or increases gradually It might be necessary to reset the step size to 0 1 by c
2. SELECT afterwards Change Password This menu item provides for two options to set and clear the password that allows access to the EXPERT USER MODES Set Password Set Password Advanced Mode Use L M amp R keys to enter Password Figure 35 Display for setting password The password is defined as a combination of exactly seven letters L M and R After entering the desired combination of seven letters confirm the password with the right key ACCEPT or CHANGE the password with the left key To ABORT the password selection use the middle button In Figure 36 the password protection of the EXPERT USER MODES is summarized User s Manual 54 identiFINDER DOSE or FINDER Right button OPTIONS Password Protection enabled NO YES Password already entered Password Input Advanced Mode LLLLLLL Use L N amp R keys to enter password CHANGE REORT ACCEPT OK Yes EXPERT USER MODES Figure 36 Password protection of the EXPERT USER MODES When setting a password make sure to remember it There is no A way to enter the EXPERT USER MODES without a valid password once the EXPERT USER MODES have been exited Clear Password Selecting Clear Password will erase the existing password without any additional notice Show Status User s Manual 7 55 identiFINDER Three main status parameters are shown immediately some more can be
3. to CHANNEL TESTM Some control parameters for testing and servicing the identiFINDER will appear on the spectrum display They are not of any importance to the user To get rid of the excess information just wait about ten seconds The test mode will not vanish by pressing the middle button TESTM again RT The expired time is shown in the status line It will be changed to real time RT and the command line will change to live time LT The active setting is indicated in the status line If a real time preset has been set Chapter 7 8 RT is replaced by PRRT and the time will count down instead User s Manual j 39 identiFINDER LT Selects the expired time information to live time LT and the command line will change to real time RT The active setting is indicated in the status line If a live time preset has been set Chapter 7 8 LT is replaced by PRLT and the time will count down instead SLibSPEC The identiFINDER allows the user to store 5 additional spectra as reference spectra which are added to the internal data base For each reference spectrum a number the normal usage Nuc Med or Ind and a name format Xx nnn e g Cs 137 as used in nuclide tables must be entered Existing user defined references can be overwritten User defined reference spectra are treated as elements of the internal library and hence will
4. Nal TI detector 15 C to 55 C IP54 Splash proof dust tight 0 8 m on concrete 248mm 94mm 76mm identiFINDER Spectrometry System Specifications Detector type HV Bias Shaping Resolution Throughput rate Energy range INL top 99 DNL top 99 Spectrum characteristics Spectrum memory Real time presets Live time presets Nal Tl 200 1275 V Digital filter 7 0 to 7 5 at 662 keV typical gt 100 000 cps 15 keV to 3 MeV lt 0 05 lt 0 1 spectrum length 1024 channels linearized calibrated and stabilized energy scale 100 spectra at 1024 channels 1 s 1 000 000 s or none 1 s 1 000 000 s or none Dose dose rate measurement specifications Sensitivity 17Cs Dose rate range total Dose rate range Nal Dose rate range GM Tube Dose range Energy range Alarm levels User s Manual gt 500 cps per Sv h or gt 5000 cps per mrem h 0 01 uSv h to 1 Sv h or 1 urem h to 100 rem h 0 01 uSv h to 500 uSv h 500 uSv h to 1000 mSv h 0 1 uSv to 1 Sv or 10 urem to 100 rem Nal T1 30 keV to 3 0 MeV GM 60 keV to 1 6 MeV Four preset levels identiFINDER Special Features Stabilization Stability Calibration Remote Control Language Batteries and_ Accessories Battery pack Standard batteries Operating time Accessories User s Manual Internal Cs 137 stabilization source 1 0 to 1 5 typical 15 C to 55 C 30 to 100 000 cps Automatic e
5. Remark Background measurement screen Count down of the time to go until the background has been determined FINDER screen The height of the bars in the screen increases the closer the device is moved towards the source Additionally a sound with increased pitch will lead to the source if the radiation is above the background level Battery voltage in Volt is shown in the upper left corner 5 7 The stabilization status is shown in the upper right corner S OK N not OK Local gamma dose rate is shown 0 05 uSv h Press L to return to the DOSE rate mode Press M to characterize the source by applying radionuclide identification identiF INDER 14 4 Source Characterization Nuclide Identification Action Illustration From DOSE rate or Point unit to source FINDER mode press M to set the 8 85 puh 8 OT identiFINDER in IDENT mode If possible follow the recommendations Move closer to source count rate too low for confident nuclide identification or Move away from source count rate too high for an optimum resolution Wait for the results of the Nuclide listing 9 Ind Co 68 Ind Na 22 nuclide analysis gt Nuclide listing To store SAVE or check SPECTRUM the spectrum button M depending on current access rights User s Manual T 95 Remark IDENT measurement screen
6. identiFINDER Europe Asia Africa Oceania ICx Technologies GmbH Piepersberg 12 42653 Solingen Germany T 49 212 222090 v 49 212 201045 k support radiation icxt com m radiation icxt com AGA North America South America ICx Radiation Inc 100 Midland Road Oak Ridge TN 37830 USA T 1 865 220 8700 v 1 865 220 7181 k support radiation icxt com m radiation icxt com T technologies www icxt com
7. Identify Options menu Chapter 7 7 If the count rate is high enough the calibration is renewed but still a Not in Library appeared save the spectrum and ask an expert 12 6 Neutron Alarm but no source present The neutron averaging is done in a time frame of one minute If the device had been close to a neutron source it takes one minute to show the actual count rate The only possibility to suppress a neutron alarm duration of one minute after the detection switch the device OFF and back ON User s Manual QT identiFINDER 12 7 No sound in case of alarm Check the Alarm Indications in the Alarm Options menu Is the sound switched on Check the alarm levels in the Alarm Options menu Is the value appropriate If the sound is switched on and the dose dose rate neutron measurement is above the adjusted alarm level but still no acoustic signal resounds choose the Maintenance menu in the EXPERT USER MODES to check for hardware failures 12 8 No vibration in case of alarm Check the Alarm Indications in the Alarm Options menu Is the vibrator switched on Check the alarm levels in the Alarm Options menu Is the value appropriate If the vibrator is switched on and the dose dose rate neutron measurement is above the adjusted alarm level but still no vibration signal appears choose the Maintenance menu in the EXPERT USER MODES to check for hardware failures 12 9
8. after two seconds the test proceeds with the question Hardware test Did you see checker board Figure 38 Hardware test After display of the checker board A confirmation with YES will direct the device to the next test if the operator doesn t do anything or presses the NO button the test will proceed after a short while Hardware test Displaying for 2 s Black display The display should turn black completely And again the user needs to confirm the functionality of the display similar to Figure 38 A confirmation with YES will direct the device to the next test if the operator doesn t do anything or presses the NO button the test will proceed after a short while User s Manual 59 identiFINDER Hardware test Displaying for 2 s White display The display should turn white Hardware test Did you see White display Figure 39 Hardware test After display of the white screen A confirmation with YES will direct the device to the next test if the operator doesn t do anything or presses the NO button the test will proceed after a short while The tests for the alarm LEDs will follow Hardware test Is alarm light flashing Figure 40 Hardware test During flashing LEDs Please observe the red and blue LEDs during this display They should toggle on and off one at a time Here neither the confirmation with YES nor the denial will show any influence on the test User s
9. identiFINDER menu You will be given the choice of four selections Figure 46 ee PHA SPC 1 1 0 FIELDO_2007 06 05_17 44 27 002 SPC BR Program View Spectrum Print Window Compute Misc identiFINDER x Integrate Load Actual Spectrum X N S B Add Spectrum Load Al Spectra aS Nuclide selection I X Send spectrum to device Figure 46 winTMCA32 software and important menus 9 1 Load Actual Spectrum This menu item loads the current spectrum from the identiFINDER memory to the winTMCA32 display The preliminary spectrum name will be aktspecf spc If you get an error message when downloading the spectra check all cable connections first Please make sure that no other application is trying to access your serial or USB port User s Manual 68 identiFINDER 9 2 Load All Spectra This menu item loads all available spectra from the identiFINDER memory to the winTMCA32 display Each spectrum will appear in the spectrum window temporarily The last spectrum will remain at the display and all others will be stored in the spectrum folder of the winTMCA32 installation directory The names will be composed of the identiFINDER serial number the date and time information when the spectrum has been stored and the storage position in the identiFINDER memory 9 3 Nuclide Selection The automatic identification algorithm of the winTMCA32 software has an independent library of nuclides available for identification Figure 47 Henc
10. reached by MEMORY The MEMORY display shows the software version installed and performs a test of its SRAM memory The device Serial number is displayed as well as the current date and time information The first line of the Show Status menu reports the software SW and hardware HW revision of the device The parameter Battery displays the voltage of the powerPACK or powerPACK plus the nominal voltage of which is roughly 5V all 4 AA Batteries fully charged The device will switch off automatically if the battery level drops below a specific voltage level The BackupBat entry shows the status of the internal battery supporting the memory of the identiFINDER Possible displays are OK or EMPTY data acquisition is still possible when EMPTY is displayed This backup battery is not accessible for the customer to replace it please contact the manufacturer Also the High Voltage applied to the photomultiplier tube can be read Factory Defaults If this choice is confirmed once more the device will automatically restore the factory settings and the unit will switch off automatically This function will erase all user defined settings It is advisable to A use this feature only in emergency cases Menu Level Parameter Default Default 1 2 3 4 5 6 ANSI IAEA OPTIONS More Options Show Spectrum Identify Options Identify Settings Time s 30 60 No of Nuc 2 2 Library
11. should be chosen Values between 0 s and 1000 s can be chosen A setting of 0 s will force the identiFINDER instrument to acquire the gamma ray spectrum until a total number of 3000 counts are collected Modify the actual setting by or step size 1 and save the final setting with the middle button ACCEPT No of Nuc The number of nuclides defines the maximum number of recognized isotopes displayed after the identification algorithm Possible settings are V7 2 3 or A respectively A The reliability of nuclide identification increases with decreasing number of nuclides to be identified The recommended setting for most applications is 2 Library The Library inherits the input data base for the identification algorithm Only nuclides can be identified which belong to the selected data base Possible settings are Secur library for security applications Customs library for customs authorities OSI library for On Site Inspection Nuclear library for nuclear industry and nuclear research facilities Medical library for medical applications and Indust library for industrial applications Depending on what library is selected different isotopes will be available for identification Each of these libraries can be modified except the OSI library The modification is carried out in the display Edit Isotope List Edit Isotope List All stored n
12. the last ones will be overwritten if necessary If the log file is not cleared only the last 150 data records are available Dose Log Up to 40500 dose rate and neutron count rate values including time information can be stored in the device memory The frequency of storage can be chosen individually If there is no memory left the oldest data will be erased and overwritten Only the last 40500 values can be extracted from the identiFINDER Per default this data logger is not available To switch it on a time interval has to be chosen which defines the speed of data logging The syntax of the entries is the following NNNNN dd mm yyyy HH MM SS g ggg n nnn with NNNNN position of storage descending dd mm yyyy date of storage HH MM SS time of storage 8 888 dose rate value n nnn neutron count rate value optional To exit the identiFINDER transfer software use the button Quit G lentiF INDER transfer idenv WDER gt E targeNidF Spectum Stored flex Destination PC directory 2650 89_2006 03 26_13 37 13 001 spc wy 89_2006 03 07_20 16 35 000 spc ident2650 89_Alarm_Log_2006 03 02_10 56 Preview j es gt gt tga t Figure 49 identiFINDER transfer software screen User s Manual 73 identiFINDER 11 Maintenance 11 1 Battery Indication The actual measured voltage is shown in the battery symbol at the upper left hand corner the display Typical values are 5V for ful
13. 11 Maintenance csscessesessssescssessesossneossnsonencsessessssesseceseesessceneosenconeaseneseeees 74 11 1 Battery Indication ssssssssssssssirsssssreressssrertssesrreressssrirensssrirresesnrnres 74 11 2 Charging the powerPACK plus ssss ssssssssssssssssirsssssrerresssrrreesesses 74 11 3 Replacing the powerPACK plus battery pack oe 77 11 4 Replacing the powerPACK or inserting standard batteries 78 12 Trouble Shooting csesssesssssssssssssssssesssssssssesssssssssssessssassssesseesssesesoes 80 12 1 Cannot switch on the device o sss ssssssssesesssseesesresseresrerrerssrersrrereesee 80 12 2 Failing initial calibration ssss sssssssessssessesessessertesessenresssssnreersssenees 80 12 3 Apparently wrong dose rate indication 0 cece neces 80 12 4 Apparently wrong nuclide identification 00 eee 81 12 5 Nuclide identification not possible or Not in Library 81 12 6 Neutron Alarm but no source present 0 cceessseesseeeeseesestenenee 81 12 7 No sound in case Of alarm eeeseseseeseesesseseeceeeseeesseenenseneasenease 82 12 8 No vibration in case Of alarm 0 eeeseeeseesessesesseseeeseeeeeneeensenease 82 12 9 No LED indication in case of alarm 0 0 eeesesesees ees eeeeseenentenenee 82 12 10 FINDER Mode does not show anything 00 cesses 83 12 11 Device switches off automatically 0 eseeeeeeeseeeeeee 83 12 12 Password is set but UNKNOWN esesesessesesseeeesesseeeeseeneneesea
14. ICx Radiation warrants that the delivered items are free from defects in material or workmanship No other warranty express or implied and specifically no warranty of merchantability or fitness for a particular application is provided ICx Radiation s exclusive liability is limited to repairing or replacing at the option of ICx Radiation items found by ICx Radiation to be defective in material or workmanship for a period of one year commencing with the date of delivery ICx Radiation s liability for any claim of any kind shall in no case exceed the price of the item that gives rise to the claim Table of Contents 1 2 3 4 5 6 7 8 User s Manual Tite OA U Ch ON aanerer ee E E ORTS E EEE A EE e 7 Start of the Instiument sesse issoepinses iiep ssion ieseni ese risos aaas 12 User MOOS ssaiscsisssalessssedasessesesacsssadewsustesvcsnsssobstsosesdsessodascassootssbedusesedeadenoget ocess 15 The DOSE Rate Mode ssssssssssssssssssssssssssssesssssssssesssssssssassnsesenssssssseesesees 16 The FINDER Modein re si ss e 18 The Nuclide Identification IDENT Mode ssesssesessessscssessossesecseeosceseosses 20 6 1 Procedure to identify a source sssss sssssssssisssssesrssssriressssrirresssserees 20 Expert User Mode ssssssssssssssssssessssssessssssssassnssssesssssssessssssssssssssssssessserees 25 7 1 Overview of All Settings ainnir 26 7 2 Gammma N C unting ieie i i 27 7 3 Finder OPi Ons eacsssset sasevcsucrsn
15. Manual E 60 identiFINDER Last but not least the speaker will be checked Please make sure the correct speaker setting has been selected MENU Options Alarm Alarm Indications The test will work for both the head set and the internal speaker setting If the sound has been switched off the hardware test will not alarm Hardware test Is alarm sounding Figure 41 Hardware test During speaker performance test 7 12 Stabilization The states of the stabilization are important for the technical staff only They will not be described in detail There are different menu entries for the different stabilization processes Source Stab Status Stabilization is done with an external source on request only use Do Calibration Chapter 7 9 therefore PSA Stab Status PSA is the abbreviation for Pulse Shape Analysis this mechanism uses the width of the detected signal to determine different system variables e g discrimination of noise events 7 13 Calibration Source A This entry allows selecting a source type for the re calibration procedure Please note the comments and explanations made in Chapter 7 9 Do Calibration In general this feature is disabled for identiFINDER NHG User s Manual 61 identiFINDER 7 14 Data Logging The identiFINDER is able to store dose rate and neutron count rate values together with the time information in a log file Up to 40 000 entries can be stored bef
16. away from the source and is moved gradually towards it Figure 11 The actual dose rate reading is 0 26 Sv h which is indicated by the vertical bar most right Afterwards the identiFINDER is shifted away Figure 12 the source is located User s Manual 18 identiFINDER Figure 11 Searching for a hidden source using the FINDER mode 2 cl 5 Us Figure 12 Searching for a hidden source using the FINDER mode 3 a The default time scale of the FINDER mode i e the number of data entries per second can be changed by the expert user EXPERT USER MODES From the FINDER mode the automatic identification process can be started by pressing the middle key IDENT in case that a source or area of contamination was found With the left button DOSE one can go back to the DOSE rate mode With the right button OPTIONS the EXPERT USER MODES can be entered User s Manual 19 identiFINDER 6 The Nuclide Identification IDENT Mode Pressing the middle key IDENT from DOSE rate mode or FINDER mode will turn the instrument into the nuclide IDENTification mode The display shown in Figure 13 will appear Point unit to source N85 powh 8 ADT CPS Wve LLUSER TU SUURL IF POSSIBLE EXIT Figure 13 Starting screen for the IDENT mode 6 1 Procedure to identify a source In the IDENT mode the instrument is acquiring the gamma ray spectrum of the unknown source or contamination The operator must point th
17. be analysed according to its compounds Use the menu compute gt identify one for one possible component in the radioactive source or compute gt identify two three four for two three or four possible elements A pop up window Figure 48 will appear giving the information on the nuclide identification User s Manual 70 identiFINDER Tmcadrv32wdm EI A 78 identiFINDER 8 Nuc U 235 Figure 48 winTMCA32 nuclide identification results The results of the nuclide identification may vary slightly between the results of the identiF INDER and the winTMCA32 User s Manual 71 identiFINDER 10 Basics of the Transfer Software This chapter will give an overview of the identiFINDER transfer software Switch on the device and start the identiFINDER transfer software Click on the button Preview in order to scan for all stored spectra and log files available on the connected identiFINDER Depending on the amount of data this transfer may take some time The received data will be displayed in the central window below the label Stored files The central part of the status bar indicates the amount of lines that have been read out of the log files in Figure 49 4 Lines have been stored in that file As long as this number is counting there are still data downloaded from the identiFINDER The file names of the received data are composed of the identiFINDER serial number the storage date and tim
18. be used for nuclide identification algorithm see Chapter 7 7 Identify Options A user defined reference spectrum cannot be erased from the data base It can be overwritten by a new defined reference spectrum only PRESET This selection will lead the user to the preset time screen described in Chapter 7 8 a To exit the spectrum display independently of the current menu selection it is possible to use the ON OFF button instead User s Manual 40 identiFINDER 7 7 Identify Options Selecting Identify Options from the menu will open a display with two options Figure 27 GH IDENTIFY OPTIONS SOLOPE L15 DOKN SELECT BACK Figure 27 Display after opening the Identify Options Mark either Identify Settings or Edit Isotope List by moving the black background with the left key DOWN and press SELECT to make changes Identify Settings In the Identify Settings the following changes can be made Ident Settings O 0 Nuc Library Secur DORK SELECT BACK Figure 28 Ident Settings menu Time s This parameter defines the duration in seconds of the data acquisition for the nuclide identification Weak sources need longer measuring time User s Manual Aq identiFINDER The higher the natural background or the lower the activity of the unknown source use the DOSE rate mode first or the more shielded or the more mixed the source is the larger Time
19. or no subtraction of the optional background spectrum and the number of counts at the cursor position The second line on the right hand side shows the letters S or N respectively S stands for a working stabilization N indicates that the stabilization is currently being switched off because of missing calibration source or high radiation level or the initial calibration was not carried out successfully The status line below indicates whether the identiFINDER takes data ACQ or not STOP and shows the timing information like real time RT or live time LT the remaining real or live time after a preset PRRT or PRLT These times are shown in seconds the dead time DT in per cent Possible commands in the SPECTRUM mode are ACQ Starts a new or resumes the previous measurement Both display and memory will not be cleared The status line entry will display the current state ACQ whereas the command line entry will change from ACQ to STOP STOP This command stops the data acquisition The status line entry will change to show the actual state STOP whereas the command line entry will change from STOP to ACQ CURLEFT CURRIGHT The cursor will move left or right respectively The actual position will be displayed in channels or in units of keV A vanishing cursor on the left right edge of the display will appear on the rig
20. 34 a Q w m QJ N A E gt E i A Ind Cr 51 Ind Eu 152 Ee ae aaa RY A Se Ind Ir 192 s S z Fy ajaj o a tH 2 5 2 T F g B 2 7 al l User s Manual 44 identiFINDER lt n Em E Scene SCO Se ee e ee i ee NORM Th sail ME AR the ed Nuc U 238 eee ot ed a a a a a E a ES a i ee ee ES a ea ES Nuc U 235 User s Manual 45 identiFINDER Reena O O y e wrna f f f S mr f i Table 2 Nuclide library 1 weapon grade 2 reactor grade 3 depleted uranium NOTE There are a couple of exceptions on identifying nuclides in the Non Expert User Mode EASY USER MODE i e a password protection has been entered into the identiFINDER but the current user has not entered the correct password yet please refer to Chapter 7 11 Maintenance Menu subsection Change Password for further information The following identification results will be displayed Uranium for all uranium isotopes U 233 U 235 U 238 Plutonium for all plutonium isotopes Pu 239 Pu 240 NORM Th for thorium and daughters Th 232 Ac 228 Tl 208 Am Pluton for Am 241 shielded plutonium may be present 7 8 Presets Setup In Presets Figure 29 mark either Real or Live by moving the highlighted field DOWN and press SELECT to make changes BACK returns the identiFINDER to the prior display TIME PRESETS DOWN SELECT BACK Figure 2
21. 7 6 Show Spectrum The most important feature of the advanced options is the SPECTRUM mode This mode can be entered by selecting Show Spectrum in the More Options Menu or after the radionuclide identification from the IDENTification mode ia v Cc oO E e o status line 26key CURRIGHT 3 DT 02 CURLEFT ETH 01 06 PRRT 13 TOP gt a a ae 3 S S z xN N z z z 2 un pr kr k i i _ _ 13 Figure 25 Command line structure in the SPECTRUM mode 1 User s Manual 35 identiFINDER a l0 s li 5 90 10 l 10 Zp 106b 11 10095 li 3 5646 i 8297 88 f 82399 8 Ns 634 8 gN 9 eug 1 0 Asaa s euIG ole BR ope yA 90 10 l z2 10 38 rm z 1d 208 remain zE L l mas z 1033 li Ne AN euje on AB Aaxgg oo MB lt Aaxggz 60 10 ME 23 S a ro 10 I Figure 26 Command line structure in the SPECTRUM mode 2 __ ASTANGOT EATA Zb 10 52 coon oe aN BUI9ZZ LION sl Aaxgg tO E identiF INDER s Manual e User The main part of the display shows the spectrum histogram It is updated during data acquisition There are five entries on top representing from right to left the actual cursor position in keV or channels depending on the users choice e g 662 keV or 221Cha the time the spectrum y axis iy n T and 0 ay and respectively for subtraction
22. 9 Possible pre settings for time of data taking in the SPECTRUM mode User s Manual 46 identiFINDER Real Pre sets the real time for data taking in the SPECTRUM mode i e after the selected time the data acquisition will stop automatically Values from 0 to 7 200 seconds are possible In the SPECTRUM mode the entry in the status line changes from RT to PRRT Live Pre sets the live time for data taking in the SPECTRUM mode i e after the selected live time has expired the data acquisition will stop automatically Values from 0 to 7 200 seconds are possible In the SPECTRUM mode the entry in the status line changes from LT to PRLT In course of changes the step size for both parameters which is Ay effected by or increases gradually It might be necessary to reset the step size to 1 by changing the direction from to or from to To disable a preset chose the setting none which can be found in the sequence below 1 a If one preset parameter is different from none the identiFINDER stops data taking after the pre set period The spectrum must be stored or cleared before a new data acquisition can be started i It is not possible to set both presets real and live time simultaneously 7 9 Do Calibration This entry provides a means for re calibrating the device Re calibration is not a routine operation but may be used in order to improv
23. D ROM User s manual Figure 1 Scope of supply includingO power supply powerPACK accessories optional software CD miniUSB cables interface box identiFINDER in holster source kit optional miniUSB to serial cable User s Manual 8 identiFINDER Figure 2 Scope of supply including 1 neutron moderator optional 2 interface box 3 miniUSB to serial cable 4 earphones optional 5 miniUSB cable 6 miniUSB to miniUSB cable 7 battery packs powerPACK and powerPACK plus 8 Potassium K 40 box optional 9 identiFINDER in holster 10 european mains adaptor optional 11 UK mains adaptor optional 12 wrist strap 13 mains power supply 14 external battery charger optional User s Manual identiFINDER Figure 3 Overall view of the identiFINDER front view with O battery compartment lock ON OFF button blue LED neutron alarm optional selection buttons command line red LED gamma alarm internal GM tube internal He 3 tube neutron detection optional internal Nal T1 scintillation detector The bottom part of the display shows a black shadowed command line with up to three commands which can be executed using one of the buttons L M or R for left middle and right keys respectively Before switching on the identiFINDER you should Remove it from all dirt Check it for visible damage Check whether powerPACK plus is insert
24. E TM identiFINDER NGH IVA technologies identiFINDER NGH User Manual ad AEA technologies This document is changed in accordance with the ICx Radiation Quality Management system Changes are archived Revision identiFINDER NGH en 1 2 3366 May2009 Product identiFINDER NGH Language English en Version 1 2 3366 Latest Change May 08 2009 at 14 33 UTC 0200h ICx is a trademark of ICx Technologies Inc ICx Radiation is a trademark of ICx Radiation Inc All other trademarks belong to their respective holders Copyright 2009 ICx Technologies Inc All rights reserved dentiFINDER NGH en 1 2 3366 May2009 Po Declarations By ICx Technologies GmbH Solingen Germany and ICx Radiation Inc Oak Ridge TN USA hereinafter collectively called ICx Radiation This documentation is provided as a component part of the ICx Radiation identiFINDER NGH All parties or individuals who are in possession of the documentation accept in full and without exception or limitation the ICx Radiation unrestricted rights of ownership of this material This documentation is not available by any other means except by license which is only available from ICx Radiation Under no circumstances may any part or the whole of this documenta tion be reproduced stored in a retrieval system transmitted copied modified distributed displayed sold licensed published or derivative works created there from in any form or by any
25. M SETUP DISP TIME ate 1me DOKN SELECT BACK Figure 31 Selectable options in menu Setup Disp Time Display Settings In the display settings menu Figure 32 mark either Language BkLight s Contrast or AutoOff m by moving the inverted field DOWN and press SELECT to make changes BACK returns the identiFINDER to the prior display User s Manual 51 identiFINDER DISPLAY SETTINGS Contrast 4 A DFFimin 1 DOWN SELECT BACK Figure 32 Options in the menu Display Settings Language This command is used to select the language Possible settings are ENG for English FRA for French SPA for Spanish DEU for German or RUS for Russian A Make sure you will be able to operate the identiFINDER in the language you have selected The language will change after confirming with the middle key ACCEPT and leaving the screen BkLight s Every button operation illuminates the display for the selected period Values from 5 to 60 seconds are possible step size 1 Contrast The LCD display is very sensitive to the ambient temperature This effect is internally compensated Extreme temperatures might require a manual readjustment Values from 0 to 40 are possible step size 1 A Off min In all modes except for DOSE rate and FINDER mode the identiFINDER will automatically switch off a selectable time after the last button operati
26. No LED indication in case of alarm Check the Alarm Indications in the Alarm Options menu Is the LED indication Light switched on Check the alarm levels in the Alarm Options menu Is the value appropriate If the light is switched on and the dose dose rate neutron measurement is above the adjusted alarm level but still no LED signal flashes up choose the Maintenance menu in the EXPERT USER MODES to check for hardware failures User s Manual 99 identiFINDER 12 10 FINDER Mode does not show anything The diagram in FINDER mode will be rescaled with every new dose rate value Wait a few seconds until the display has changed You may also press DOSE to leave the FINDER mode and FINDER to enter it again 12 11 Device switches off automatically There are two reasons why the identiFINDER switches off automatically The powerPACK or powerPACK plus is empty Check the voltage and connect the external power supply to the device Refer to Chapter 11 Maintenance for details The function Auto Power Off has been enabled Check the setting in the menu Setup Disp Time Display Settings Chapter 7 10 12 12 Password is set but unknown The device is only usable in the EASY USER MODES or must be sent back to the service 12 13 No Spectrum Transfer to PC Check all cables and connections Switch the device on before starting the software if necessary close up the software
27. OPTIONS if you intend to enter the EXPERT USER MODES User s Manual 16 identiFINDER an og DOSE RATE 0 11 WSu h 8 88 ces Neutrons FINDER ee gt af gd Point unit to source T gt 8 85 yovvh 8 ADT URL EXT Figure 9 Menu overview of the EASY USER MODES If the detected radioactivity exceeds the alarm levels a warning message will be shown on the top line of the display On very high dose rates above 500 uSv h the scintillation detector will be switched off and the GM tube is responsible for the dose rate display User s Manual 17 identiFINDER 5 The FINDER Mode The FINDER mode can be used to localize the radiation source if an increase of the dose rate level is detected Follow the identiFINDER display and the acoustic signals to easily locate the source or contamination From the DOSE rate mode the FINDER mode can be entered by pressing the left button The identiFINDER will now switch to the FINDER screen shown in Figure 10 5 7 S Figure 10 Searching for a hidden source using the FINDER mode 1 The initial screen is empty and starts being filled from right to left by a histogram representing the actual dose rate reading shown in the bottom line In general The higher the bar the closer the source A typical course of a search for a hidden source is shown in the three figures Figure 10 to Figure 12 When starting the search Figure 10 the identiFINDER is far
28. OSE STOF CHT BACK Figure 18 Gamma GM display 7 3 Finder Options Opening the Finder Options from the OPTIONS Menu will provide the opportunity to change two parameters Figure 19 FINDER OPTIONS ABAD R DONN SELECT BACK Figure 19 Options for FINDER settings To change either the finder detection speed Time 0 1s or the detection sensitivity Sensit move the inverted field DOWN with the right button and press SELECT to make changes User s Manual 98 identiFINDER Time 0 1s This parameter defines the speed of the FINDER mode detection The larger the time the slower the reaction time but this means the device is more sensitive to find smaller sources If the value 2 has been chosen every 0 2 s one value will be added to the FINDER mode display representing the average dose rate during this last period Sensit This parameter defines the dose rate level Ds above which the identiFINDER emits an audible signal together with every new vertical bar appearing The identiFINDER measures the ambient dose rate equivalent and determines the average background dose rate lt BDR gt and its variation sqrt lt BDR gt Itis Ds lt BDR gt 3 5 100 Sensit The frequency of the finder tone follows the dose rate The FINDER mode display rescales automatically according to the highest value measured If either the threshold for dose rate alarm or dose rate warning is exceeded an a
29. Optimum identification results will be obtained if the vertical black bar is in the range indicated by the two arrows The data collection can be aborted by pressing the right button EXIT During the acquisition the actual dose rate 0 05 uSv h the actual count rate 59 cps and the dead time 0 are shown together with the remaining acquisition time 24 s If the detected radiation exceeds the alarm levels the vibrator as well as the beeper will not be switched on Only the LEDs will even if the LED is switched off indicate an alarm Nuclide list comprises a number characterizing the confidence of the identified nuclide s 3 to10 for increasing confidence hyphen for a weak signal the nuclide classification Industrial Medical Nuclear NORM for Naturally Occurring Radionuclides or OSI for On Site Inspections and the nuclide name and mass identiFINDER If the source activity is too low you may continue the data acquisition to obtain better statistics If the source can t be identified the device shows Not in Library To store or check the spectrum button M User s Manual Low Activity Do you want to continue Nuclide listing Not in Library SPECTRUN EXIT If the nuclide identification is finished press right EXIT or middle SPECTRUM or SAVE key to switch back to the FINDER or DOSE rate mode or to store view the spectrum
30. Secur Secur Edit Isotope List Presets Setup Real s none none Live s none none Do Calibration User s Manual 56 identiFINDER Advanced Options ISp ie Display Settings Language ENG ENG BkLight s 20 20 Contrast 40 40 A Off min never never Date Time Date Dd Mm Yy Dd Mm Yy Time Hh Mm Hh Mm Change Password Set Password Password none none Clear Password Show Status Factory Defaults Erase all Spectra Factory Test on Source Stab Status PSA Stab Status on Cs 137 Xx x K 40 Timer s 0 0 Status OFF OFF Gammai N Counting Finder Options Time 0 1s 5 5 Sensit 100 100 Doserate Options IntTime s 15 15 Unit Sv h Sv h Alarm Options Alarm Indications Sound ON ON Vibrate ON ON Light ON ON Dose alarm Lv Dose alarm 0 20 Sv 0 20 Sv Dose warning 0 15 Sv Doserate Alarm Lv Dose rate alarm 0 10 mSv h 0 10 mSv h Dose rate warning 0 04 mSv h N cpm 10 com Table 4 Factory Defaults Neutron Alarm Lv Erase all Spectra This feature will erase all stored spectra of the instrument The user is asked Erase all stored Spectra and has to reconfirm by pressing the middle key YES User s Manual 57 identiFINDER Factory Test Although there is no danger using this feature it should be used only by service engineers and or trained users It provides tools for testing some components of the identiFINDER instrument The identiFINDER will s
31. a files ABM or compatible with Pentium or higher processor clock rate 500 MHz MS Windows 98 ME 2000 or XP 20 MB free disk space XVGA graphic card USB or RS232 interface Personal computer identiFINDER This space was intentionally left free for personal notes User s Manual E 89 identiFINDER This space was intentionally left free for personal notes User s Manual 5 90 identiFINDER This space was intentionally left free for personal notes User s Manual of identiFINDER 14 Quick Reference Guide 14 1 At a Glance DOSE Rate Screen Stabilization Status S OK N OFF Dose Rate Ss ts DOSE RATE 8 Alarm Level 0 11 uSuzh Dose Rate Battery Indication Dose Rate Neutron m 88 ces Neutrons Value Count Rate gt EXPERT USER MODES FINDER Screen IDENTification Screen Battery Count Rate Optimum Count Indication Indication Point unit to source Rate Range Dead 8 01 7 Time Count Rate Histogram Value Countdown of Dose Rate acquisition time Value Identification Results Confidence Level 10 very probable down to for weak indication Nuclide listing Isotope name 9 Ind Co 68 and mass 2 fab BAT Indication of origin or usage of the nuclide User s Manual 92 identiFINDER 14 2 Switching ON the identiFINDER Action Press the ON button gt Red and blue LED flare up gt Start up screen g
32. are a couple of reasons for a failing calibrations and ways to avoid this failure they are summarized in Chapter 7 9 If this problem persists the device must be sent back to the manufacturer 12 3 Apparently wrong dose rate indication Switch identiFINDER OFF and wait a few seconds Switch the identiFINDER back ON Wait for the result of the initial calibration If the initial calibration is completed successfully and the displayed value is still out of range please contact the manufacturer User s Manual 80 identiFINDER 12 4 Apparently wrong nuclide identification Possible reasons for wrong isotope identification are Failed energy calibration Failed gain stabilization The best way to adjust the energy scale is to start with a new initial energy calibration The calibration is easiest done by switch OFF ON the device or in the EXPERT USER MODES with Do Calibration 12 5 Nuclide identification not possible or Not in Library Possible reasons that the device is not able to identify the nuclide are The count rate is too low move closer to source if possible The calibration or stabilization has failed or is temporarily switched off Calibrate the identiFINDER by either switching the device OFF and back ON or using the Do Calibration menu in the EXPERT USER MODES and wait for the Calibration successful message The identification libraries may have been altered check the settings in the
33. ation of any nuclides found in the field User s Manual 49 identiFINDER a Figure 5 The identiFINDER display during initialization Calibrating Please wait Counts Source Time Date Figure 6 The identiFINDER display during the calibration a The letter in the right hand corner shows the status of the calibration and stabilization S n indicates a working stabilization i e everything is working N stands for a failed initial calibration or the stabilization is contemporarily switched off the external radiation field is too strong to stabilize on the weak calibration sources please switch the device off and back on or use the Do Calibration menu see Chapter 7 9 The identiFINDER is now ready for operation and enters automatically the DOSE rate mode Figure 7 User s Manual 13 identiFINDER i 5 ig DOSE RATE ST CE 0 30 Woh 8 88 ces Neutrons FINDER IDENT OPTIONS Figure 7 DOSE rate screen The DOSE rate screen is the basic screen of the identiFINDER All other functions can be accessed from this screen by means of the L M and R buttons To switch off the identiFINDER press the ON OFF button until a tone sounds simultaneously the display will show POWER OFF User s Manual 414 identiFINDER 3 User Modes The identiFINDER is usually operated in the so called EASY USER MODES This is the default mode after switching on th
34. can be measured and stored by the factory or a trained expert On reception of the device this unique background spectrum is available acquired in a lead chamber The command line entry will change from SUB to NOSUB and the top line will display an additional S to show the current setting NOSUB This command disables the background subtraction which was enabled previously by SUB The command line entry will change from User s Manual E 38 identiFINDER NOSUB to SUB and the S in the top line will vanish telling the user that the background spectrum will not be subtracted LOG The vertical axis will be scaled logarithmically The command line entry will change to SQRT The current selection i e LOG is displayed in the top line of the spectrum window SQRT The y axis will be scaled proportional to square root The command line entry changes to LIN The current selection i e SQR is displayed in the top line of the spectrum window LIN The vertical axis will be scaled linear The command line entry changes to LOG The current selection i e LIN is displayed in the top line of the spectrum window CHANNEL The actual cursor position will be displayed in Cha channels The command line entry will change from CHANNEL to ENERGY ENERGY The actual cursor position will be displayed in units of keV The command line entry will change from ENERGY
35. ce is now operated with external power The powerPACK plus is charged in parallel As long as the powerPACK plus of the identiFINDER is charged in the fast charging mode the orange charge control LED on the back side of the instrument is ON If the powerPACK plus is fully charged the charge control logics switches to the trickle charge mode and the charge control LED is OFF a Do not open the powerPACK plus The warranty will be void if seal is broken A The powerPACK can NOT be used to charge any batteries even rechargeable batteries will not be charged inside the device This feature prevents overheating or even explosion of non rechargeable batteries Make sure to charge rechargeable batteries outside the identiFINDER with an external charging unit User s Manual 75 identiFINDER Figure 50 Charging the batteries and connection to PC with O orange LED trickle charge green LED external power mini USB connection to identiFINDER USB connection to PC external power supply interface box serial connection to PC User s Manual 76 identiFINDER 11 3 Replacing the powerPACK plus battery pack To replace the powerPACK plus Switch off the identiFINDER Turn the screw battery pack lock on the battery lid anti clockwise until the lid can be removed Figure 53 it is not necessary to unscrew the lock completely Shift off the handle towards the back side of the device Take the powerPACK plus
36. data acquisition The data is added to the data already acquired in the previous identification run NO causes a message Nuclide listing Counts too low and after quitting this message with EXIT the identiFINDER returns to the DOSE rate or FINDER mode If the measurement was successful and the spectrum contains sufficient counts for a nuclide analysis the instrument processes the spectrum The results are displayed as a nuclide listing Figure 15 Nuclide listing 3 Ind Co 68 Ind Na 2 Figure 15 Result of a nuclide analysis of a spectrum measured in IDENT mode User s Manual OF identiFINDER The data given in the nuclide listing Figure 15 are interpreted as follows The spectrum analysis suggests that the analyzed source contains Co and maybe 72Na The supposition is rated between 1 unlikely and 10 very likely A very weak indication confidence rating 1 to 3 is displayed as In the example shown the Co is very likely to be present indicated by the 9 there may be an admixture of Na The nuclides found are classified according to their basic field of application Medical nuclides MED are mainly used for medical diagnostics and or therapy Industrial nuclides IND are applied in the industry and Nuclides marked as NUC originate from or occur as by product in the production process of fissile material for nuclear power plants and for nuclear weapons NORM indicates Nat
37. e instrument to the source of radiation which can be determined using the FINDER mode The device needs to acquire sufficient information from the gamma source i e good count rates Optimum results will be obtained if the count rate is in the range indicated by the two arrows gt and 4 Depending on the special application a lower level arrow pointing right may not be available If the count rate is too small a message MOVE CLOSER TO SOURCE IF POSSIBLE Figure 13 will appear In case that the count rate is too high the message MOVE AWAY FROM SOURCE will be shown In the advised count rate range the identification algorithm will give the best results The data collection can be aborted by pressing the right button EXIT User s Manual 90 identiFINDER During the spectrum accumulation the actual dose rate in Figure 13 0 05 Sv h the actual count rate 59 cps and the dead time 0 are shown together with the remaining acquisition time 24 s If the spectrum acquired has not reached sufficient statistics the instrument shows a message Figure 14 In this case either the acquisition time was too short or the radiation level was too low and the identification algorithm is not started Low Activity Do you want to continue Figure 14 Acquisition has not reached enough statistics to identify the radioactive source The user has to choose one of two options With YES the identiFINDER resumes
38. e as well as the type of file Names of stored spectra are e g ident2650 89_2005_06_15_16 27 46 002 spe stating the origin device s serial number 2650 89 the date of storage 15 of June 2005 at 4 27 46PM on memory position 2 Names of log files are e g ident2650 89_Alarm_Log_2005_06_15_16 27 46 002 txt stating the origin device s serial number 2650 89 the date of last entry to the alarm log file was 15 of June 2005 at 4 27 46PM The dose rate logger has to be switched on in order to receive any data This can be done with the menu Data Logging Chapter 7 14 The right window shows the content of the destination directory of the PC This directory can be altered using the button which opens a folder select dialog Use the mouse to select one or more files of the stored ones If one or more are selected you have the choice to copy them to the desired folder on the PC 5 or send them as attachment via email Bh Pressing the button 2 copies all files to the specified folder If only one file is highlighted a rough preview is shown in the display window on the left This is also true for one selected file in the destination folder User s Manual 72 identiFINDER Double clicking on files that have already been transferred to the PC hence these are displayed on the right hand side the adequate program will open to review this file more detailed Alarm Log The device stores up to 150 alarm events
39. e device The EASY USER MODES allow to access different user screens measuring modes which provide for Gamma dose and gamma dose rate measurements DOSE rate mode Search for single radioactive gamma sources or for areas of contamination with gamma radio nuclides FINDER mode Automatic identification of radio nuclides based on measured gamma ray spectra IDENTification mode Indication of neutron radiation gamma dose dose rate alarms or optional neutron alarms DOSE FINDER and IDENT modes The EASY USER MODES are the standard modes for non expert users They provide sufficient information to observe the local radiation level to detect any increase of the radiation level due to radioactive sources or contaminations to localize and to classify these sources Any increase of the local gamma or neutron radiation field which may be harmful to health or giving hints on terrorist activities is indicated immediately by the corresponding alarms acoustic visible and vibration alarm signals To obtain very detailed information in case of emergency or to change parameters and settings of the identiFINDER the device must be switched to the EXPERT USER MODES This is done by pressing the right button OPTIONS in the DOSE or the FINDER screen However the EXPERT USER MODES can be protected by a password if required The EXPERT USER MODES allow accessing various menu screens Many parameters like alarm thresholds times for identi
40. e the identification by re calibrating the device The identiFINDER performs the identical calibration procedure after starting the device This command starts the re calibration of the identiFINDER instrument immediately after selecting it Before pressing this menu item please make sure that little external radiation is present User s Manual 47 identiFINDER Calibrating Please wait 95 Counts 73 Cs 137 3 46 9 86 288s SOUrCE Time Date Figure 30 Re Calibration of the device If the calibration fails e g due to unfavorable radiation background conditions or insufficient statistics of the radiation the failure is substantiated by an error message see Error Message Error No Possible Reason What to do real time 0 1 Internal error Call service no counts 2 No detector Check detector by using available Detector a radioactive source and failure or HV the SPECTRUM mode failure Unknown 3 6 Radiation Check for presence of source present background too radiation sources Remove all high to find the eave teareaor sources and correct gamma line increased back ground press AGAIN or wrong activity adjustment of Pee Hpiselevel Move the calibration source if external Cs 137 available away from device Check count rate in low background area No reference 4 7 Wrong HV value Try using an external Cs source present detector 137 source if available User s Manual exchanged device temperature out
41. e they can be switched off or on with this menu The nuclide identification of the winTMCA32 software is done with the menu compute gt identify one for one possible component in the radioactive source or compute gt identify two three four for two three or four possible element indications User s Manual 69 identiFINDER User Nuclide Library Ea M Ba 140 MV Togam IV Fe59 M Hf181 I Cd115 M Gat IV W192 F 1133 M Ce 141 K 1123 MV K 40 T 1 134 I Ce 144 F 1125 IV Mn54 F 1135 M 1132 K In111 IV Na22 M Mn56 M Lat40 K P103 V Ra226 M Pb 214 M Mo39 M T20 V Se75 F Ru106 M Nb 95 R g110 MV Th232 M Sb 124 M Nd147 K Am 241 IV U nat U 238 M Sb 127 T P144 M Ba133 V Zn65 M T208 M Rh 106 Bi 207 IV Pu 239 M 88 M Ru103 M C4109 VV U 233 I DU U 238 M b 125 MV CoS IV HEU U 235 I Np 237 I Te132 Co58 V Ac 228 M Xe 131m Co60 IV Ag 108m M Xe 133 K Cs 134 IV 5itkeV I Xe133m V Cs 137 VV Be M Xe135 K Cr51 MV Bi212 DL 2 95 M Eu152 IV B214 Iv 14131 VM Eu155 MV Ce 139 Abbrechen Figure 47 winTMCA32 nuclide library for identification 9 4 Send Spectrum to Device Any spectrum can be transferred to the identiFINDER from the winTMCA32 except spectra with a length that is not equal to 1024 channels Please be aware that the actual spectrum in the device will be erased It will take a couple of seconds to transfer the spectrum 9 5 Nuclide Identification A spectrum displayed by the winTMCA32 can
42. ed before connecting the battery charger Open the screw battery pack lock and shift off the handle As an alternative one can use the additional powerPACK with 4 standard AA size batteries Please make sure to read Chapter 11 Maintenance on how to open the device and handling the powerPACK or powerPACK plus User s Manual 10 identiFINDER A The powerPACK plus is not charged on reception of the instrument The powerPACK plus has to be inserted into the identiFINDER and the device has to be connected to power supply before operation It must be charged for at least 12 h before switching the device on The powerPACK instead can NOT be used to charge any batteries A inside the device even rechargeable batteries will not be charged This feature prevents overheating or even explosion of non rechargeable batteries Make sure to charge rechargeable batteries outside the identiFINDER with an external charging unit A The device cannot be used without batteries and just connected to the mains supply This will cause wrong dose rate values and Identification results Please make sure to have a battery pack inserted at any times User s Manual 47 identiFINDER 2 Start of the Instrument After charging the powerPACK plus for at least 12 hours see Chapter 1 and 11 2 the device can be operated To switch on the instrument press the ON OFF button uintithe red and blue alarm LEDs illuminate Soon the display will show t
43. enesensereussectuesvauvetebeeszresss S a 28 7A Dose rate Setting isi ninien eenia E n A EENE 29 7 5 Alarm Options aieea A E E E E Ee 31 7 6 Show Spectr Us iinitan iane rinine i Erai 35 7 7 ldentify OptioiSe seesi ie 41 7 8 Presets Seip oratoire E AA NEERA AIRAA 46 7 9 Do Calibrations wiccanaicl te ei n E inka nade 47 7 10 Setup Disp Time ise sss asinchadiich saan ein A AiE 51 7 11 Maintenance Mernis aseinio e E R ar 53 7 12 p12 6 VAz 66 Renn enai enn etan eni 61 7 13 Calibration SOURCE csar aaee en EEE RE E EE 61 7 14 Datta Logging snno ae EE eie riria 62 Connecting the identiFINDER to the PC sessesessseessseeseseccsseecoseecossseseseceess 63 8 1 Serial Connection without interface DOX ss sssssessseesseseerssreseseeess 63 8 2 Serial Connection with the interface DOX sssssssesessesiessssesesseese 63 identiFINDER A 8 3 USB CONCH ON asesir E E E T Ri 65 8 4 Starting the winTMCA32 or identiFINDER Transfer Software 66 9 Basics of the winTMCA32 Software sssesessccesesceseseoroseecssseccoseecossecoeseeeesse 68 9 1 Load Actual Spectrum seiri n e E REEERE 68 9 2 Load All Spectra casin aeeiiaii eiia 69 93 Nutelide Selection eiai s e hri abodes 69 94 Send Spectrum to Device sssssssisissesesseressessoesisensteeit tsrs teore rerseresss 70 95 Nutclide Identification o oo eeeseessesescsessceeeseesenseenseneasenes 70 10 Basics of the Transfer Software ssssssssssssssssssssssssssssssssessssssssesees 72
44. f more than the maximum limits are clipped automatically Depending on the special application a warning level may not be available Doserate Alarm Lv For the gamma dose rate an alarm as well as a warning level can be defined by the operator For doing this the operator has to mark the entry which should be changed by moving the frame SKIP and afterwards by unlocking the entry for amendments SELECT The actual setting can be modified by using the or keys The final setting will be accepted by pressing the ACCEPT button Possible settings are dose rate warning 0 001 uSv h 1Sv h or Inrem h 100 rem h dose rate alarm 0 001 uSv h 1Sv h or 1 nrem h 100 rem h Values of more than the maximum limits are automatically clipped Depending on the special application a warning level may not be available Neutron Alarm Lv For the neutron rate an alarm level can be defined by the operator Unlock the entry N cpm for amendments SELECT The actual setting can be modified by using the or keys The final setting will be accepted by pressing the ACCEPT button Possible settings are neutron alarm level Ocpm 500 cpm Values of more than the maximum limits are automatically clipped The neutron alarm level can be set in counts per minute cpm only The display instead shows counts per second cps The transformation is 1 cpm 60 cps User s Manual 34 identiFINDER
45. fication units e g Sievert and rem and the language of the user interface can be changed The EXPERT USER MODES also provide for a spectrum display A detailed description of these features is not addressed here but is given in the corresponding Chapter 7 User s Manual 45 identiFINDER 4 The DOSE Rate Mode The DOSE rate mode is the starting point for all other identiFINDER features Figure 8 shows the DOSE screen which automatically appears when the startup procedure is finished successfully a in DOSE RATE 0 30 Suh 8 88 ces Neutrons Figure 8 identiFINDER screen for the DOSE rate mode On the DOSE screen the gamma dose rate or more precisely the ambient dose rate equivalent H 10 is numerically and graphically displayed The length of the horizontal black bar represents the actual dose rate reading in a logarithmic scale The limits are 0 01 pSv h up to 1 Sv h or 1 mrem h up to 100 rem h depending on the choice of units The small vertical separator here above the number 30 displays the dose alarm value Additionally the count rate for neutrons in counts per seconds cps is given in this display The letters S or N in the upper right hand corner indicate a working S or not working N stabilization By pressing the left FINDER or middle IDENT button the identiFINDER is switched to the FINDER or the IDENTification mode Choose the right key
46. for presence of radiation sources Leave the area of increased background activity Move the calibration source if external Cs 137 available away from device Check count rate in low background area Try using an external Cs 137 source if available for calibration Check temperature of the device Check for presence of radiation sources Leave the area of increased background activity Use stronger calibration source if applicable to increase the desired gamma activity Check temperature of identiF INDER the device Calibration 9 Calibration The re calibration was interrupted by procedure aborted aborted and can be user by the user repeated at any time Table 3 Calibration Errors In case of an unsuccessful calibration the user is given three options CONTINUE to go on acquiring data for calibration which is the most efficient way to precede in case of low count rate errors i e No reference source present The AGAIN option should be used if the device shows Unknown source present or Cannot adjust fine gain since the calibration will start from scratch If the EXIT button is used the calibration will terminate unsuccessfully 7 10 Setup Disp Time To change the settings for the display or the internal clock mark one of the entries shown in Figure 31 by moving the highlighted field with the left key DOWN and press SELECT to enable changes G
47. hanging the direction from to or from to respectively eu With the optional earphones note this accessory requires hardware changes and will not work without an upgrade by the factory the sound setting allows three values OFF no sound in any case INT the general loud speaker will give alarm EXT external connected earphones used for speakers Please check Figure 24 for how to connect the external headphones To control the volume of the external speakers the wheel on the earphone adaptor box can be used A The original adaptor box must be used to allow the connection of external earphones whereas the earphone itself may be exchanged by any commonly available headphone with mini phone jack mono User s Manual 32 identiFINDER Figure 24 Connection of earphones to the identiFINDER Dose Alarm Lv For the cumulative gamma dose an alarm as well as a warning level can be defined by the operator For doing this the operator has to mark the entry which should be changed by moving the frame SKIP and afterwards by unlocking the entry for amendments SELECT The actual setting can be modified by using the or keys The final setting will be accepted by pressing the ACCEPT button Possible settings are dose warning 0 001 uSv 1Sv or 1 nrem 100 rem User s Manual T 33 identiFINDER dose alarm 0 001 pSv 1 Sv or 1 nrem 100 rem Values o
48. he initialization screen Figure 4 target insight Figure 4 identiFINDER startup screen After start up Figure 5 the energy calibration of the identiFINDER starts Figure 6 Within about 20 seconds the high voltage and the fine gain will be adjusted according to the measured gamma ray spectrum of the calibration source i e Cs 137 A successful calibration ends with a message and the display of fine gain and HV values If the calibration cannot be finished correctly an error message shows up The device may in this case not function correctly which is indicated by an N in the upper right hand corner A S instead indicates a functioning calibration Please refer to Chapter 7 9 and 12 for troubleshooting tips Maintenance of the energy calibration is necessary also during operation since temperature or count rate changes introduce a shift in the detection devices The identiFINDER needs to be stabilized with the aid of the internal Cs 137 source The background energy stabilization will be done automatically in normal operation indicated by the letter S in the upper right hand corner Presence of strong sources may disturb the stabilization and calibration of the identiFINDER The device will then switch off the stabilization and display an N in the upper right hand corner in order to warn the user that the stabilization is currently not available A precise energy calibration though is essential for the identific
49. ht left edge again If the cursor meets a predefined position the identiFINDER will suggest some isotopes S1I Co 3Ba Co 137Cs Co and K in the right hand corner of the status line User s Manual 37 identiFINDER ZOOM For a more detailed look at a spectrum ZOOM expands the portion of the display around the actual cursor position first To decompress the spectrum to the complete range press ZOOM again CLEAR This command deletes the actual spectrum after asking again Clear current spectrum SAVE The actual spectrum will be stored according to running numbers In maximum 100 spectra can be stored 0 1 2 99 If you try to store an additional spectrum the instrument will display the following message No empt Slot found Do you want to overwr old spec Accepting this by pressing OVERWRITE will open an entry field and by using the SKIP command the operator can select the spectrum that will be overwritten LOAD This command returns the selected spectrum to the display The shown history helps to make a proper selection which is made by SKIP and needs to be confirmed by LOAD afterwards IDENTIFY The identiFINDER will start the identification algorithm using the spectrum currently displayed SUB This command is thought to remove a background from the spectrum by subtracting a background spectrum i e the spectrum of the internal Cs137 source that
50. ions of the identiFINDER However this requires expertise in the field of nuclear spectroscopy and nuclear instrumentation therefore these settings can be protected by a password The password is a sequence of seven letters L M and R see Chapter 7 11 If the advanced user has entered the optional password once the access to the EXPERT USER MODES will be permitted until the device is switched off Selecting the function OPTIONS right key from the DOSE rate or FINDER mode will open the password window and after a successful identification as an expert user the options menu Figure 17 appears One out of five different items can be marked move the highlighted field DOWN with the left key Use the left key to SELECT the item afterwards GH OPTIONS MENU ere COUP 1ng Finder Ortions Doserate Options Alarm Options DOWN SELECT BACK Figure 17 Options menu User s Manual 95 identiFINDER 7 1 Overview of All Settings Menu Level Parameter Remarks 1 2 3 4 5 6 OPTIONS Expert User Modes More Options Show Spectrum Spectrum display Identify Options Identify Settings Time s Measuring time No of Nuc Nuclides to be identified Library Nuclide library Edit Isotope List Libraries entries can be changed Presets Setup Real s Real time preset Live s Live time preset Do Calibration Maintenance re calibration Advanced Options Setup Disp Time Display Settings Language Language selecti
51. ly charged batteries or 6V in case the powerPACK plus is currently being charged In case of the message Low Battery Warning accompanied by an audible signal the power wil break down within a few minutes If you are using the powerPACK p connect the battery charger immediately or save all data and switch off the identiFINDER to replace the powerPACK 5 A If the voltage drops 3elow 3 9V the device will switch off immediately On the back side of the device two LED are indicating the state of charging The green LED on the right hand side illuminates when the external power supply is connected to the identiFINDER the orange LED on the left hand side is switched on only while the powerPACK plus is currently being charged up in trickle charge mode 11 2 Charging the powerPACK plus You need the following equipment Power supply charger identiFINDER system cable powerPACK plus inserted into the device to charge the powerPACK plus Connect the power cable to the mains socket and the device directly Observe the back sided LEDs An alternative is using the interface box Connect the identiFINDER system cable to the identiFINDER interface box and charging socket User s Manual 74 identiFINDER using the mini USB cable Figure 50 Then connect the power cable to the interface box of the identiFINDER and the power supply to your walls outlet The green LED on the back side of the identiFINDER is indicating that the devi
52. means electronic mechanical recording or otherwise without the written permission of ICx Radiation being obtained in advance of the requirement It is expressly forbidden for the holder of this documentations to use this documentation either in its entirety or in part or any graphics to provide training or tuition assistance or knowledge transfer to any other party whatsoever or for marketing of promotional literature or material of any type whatsoever without the prior written permission of ICx Radiation Use of this documentation in any man ner inconsistent with the operator manual and related documentation is strictly prohibited Use of the documentation is not transferable DISCLAIMER ICx Radiation reserves the right to make changes to any product to improve reliability function or design and does not assume any liability arising from either application or use of any product described herein The information presented in this publication has been carefully checked and is believed to be entirely reliable however no responsibility is assumed for inaccuracies Furthermore the information does not convey to the Operator any license under the patent rights of ICx Radiation or others PROPRIETARY INFORMATION The documentation contains confidential and proprietary information which must be maintained in confidence and used only in a manner consistent with the documentation and may not be disclosed to any third parties WARRANTY STATEMENT
53. nergy calibration and stabilization detector efficiency calibration RS232 interface USB adapter setup and control including online measurements English French German Russian Spanish powerPACK plus rechargeable powerPACK for 4 pieces AA size 1 2 V 1 8 V batteries rechargeable NiMH NiCd or non rechargeable Alkaline MnO Li More than 8 hours with 2300 mAh NiMH in DOSE rate mode AC adapter for stationary use and recharging powerPACK plus RS232 and USB connecting cables and connector box holster carrying case Optional earphones for alarm indication external battery charger neutron moderator Potassium box car adaptor EOD source kit identiFINDER Controls Display Interfaces Keyboard Alarm indicators External power indicator Charger indicator Display type Interface Firmware identiFINDER SW0 2 xxx Auxiliary PC Software winTMCA32 identiFINDER Transfer Hardware requirements User s Manual 4 soft buttons Light red and blue LEDs sound and vibration LED green on the backside LED orange on the backside Monochrome LCD with backlight 61mm 43mm RS232 and USB Installed on internal flash memory upgrade on request via serial port Transfer of spectra from identiFINDER to PC and vice versa spectrum visualization and analysis remote setup and control including batch procedures Transfer of multiple spectra from identiFINDER to PC transfer of logger dat
54. of range or low 48 for calibration Check temperature of identiFINDER Cannot adjust 58 fine gain Remove all sources and press AGAIN Calibration 9 interrupted by user activity Activity too low to for calibration or very strong temperature step Calibration procedure aborted by the user the device Check for presence of radiation sources Leave the area of increased background activity Use stronger calibration source if applicable to increase the desired gamma activity Check temperature of the device The re calibration was aborted and can be repeated at any time Table 3 for troubleshooting tips and an advice of how to proceed User s Manual identiF INDER Error Message real time 0 1 no counts 2 Unknown source present Remove all sources and press AGAIN 3 6 No reference 4 7 source present Cannot adjust 58 fine gain Remove all sources and press AGAIN User s Manual Error No Possible Reason Internal error No detector available Detector failure or HV failure Radiation background too high to find the correct gamma line or wrong adjustment of noise level Wrong HV value detector exchanged device temperature out of range or low activity Activity too low to for calibration or very strong temperature step What to do Call service Check detector by using a radioactive source and the SPECTRUM mode Check
55. on BkLight s Time preset for display illumination Contrast Display contrast correction a A Off min Time preset for Auto OFF Q Date Time Date Current date x Time Current time u Maintenance gt Change Password amp Set Password Password Password for Expert User Modes a Clear Password No password protection Show Status Service information Factory Defaults Reset all settings to factory defaults Erase all Spectra Delete all stored Spectra Factory Test Hardware Test service function Stabilization Source Stab Status Service information PSA Stab Status Service information Calibration Source Cs 137 Source selection for re calibration K 40 Not allowed for identiFINDER NHG Data Logging Timer s Defines the interval for storage Status The data logger can be on or off Gamma N Counting Counting display Finder Options Time 0 1s Speed of FINDER functions Sensit Indication of radiation above backgr Doserate Options IntTime s Aver time for actual dose rate value Unit Dose rate unit User s Manual 96 identiFINDER Alarm Options Alarm Indications Sound Acoustic alarm indication Vibrate Silent alarm indication Light Visual alarm indication Dose alarm Lv Dose alarm Dose alarm setting Dose warning Dose warning setting Doserate Alarm Lv Dose rate alarm Dose rate alarm setting Dose rate warn Dose rate warning setting N com Neutron count rate alarm settin Table 1 Overview of the EXPERT USER MODES menu Neutron Alarm L
56. on Values from 1 to 60 minutes or never are possible step size 1 Shortly before the device switches off a tone sounds only if the speaker has been enabled Within the next 5 seconds the switch off can be disabled by pressing one of the left middle or right keys twice Date Time In this menu the internal date and time can be set User s Manual 52 identiFINDER SET DATE z TIME Date 8 86 85 Time 83 86 Figure 33 Display for setting internal date and time Each digit must be changed separately Mark the digit by moving the black background SKIP and modify by EXIT returns the identiFINDER to the prior display Date The requested format is Dd Mm Yy Due to internal consistency checks it may be necessary to change d before D or vice versa and m before M or vice versa in order to achieve an allowed setting at all times Time The requested format is Hh Mm Due to internal consistency checks it may be necessary to change h before H or vice versa in order to achieve an allowed setting at all times 7 11 Maintenance Menu After opening the Maintenance menu of the identiFINDER instrument the display shown in Figure 34 will appear Ol atus Factory Defaults Erase all Srectra Factory Tests MT SELECT User s Manual T 53 identiFINDER Figure 34 Maintenance display One of five different entries can be marked move the inverted field by DOWN and selected
57. ore old values are overwritten Before starting a new log file the memory can be cleared Timer The storage time frequency can be selected possible entries are 2 seconds up to 30 minutes The timer must be larger than zero in order to be able to start the data logger After the start of the new session the user is asked whether to delete the old data Status The status of the logger is either on or off A The data logging will activated only as long as the device is switched on As soon as the device is off the data logger will be switched off as well The data will still be available for read out To review the dose rate and neutron rate log file a connection to the PC is mandatory Please refer to Chapter 10 for details DATA LOGGING Timer 2 sec Status on STOP nIT Figure 42 Dose rate and neutron count rate logging User s Manual 62 identiFINDER 8 Connecting the identiFINDER to the PC Before connecting the device to a PC please install the delivered ICx Radiation software winTMCA32 and identiFINDER transfer according to the installation guide that can be found on the CD cover a In any case you may only operate one program at a time It is not possible to use both software packets simultaneously There are now several possibilities to connect the device to the PC be aware that the device must be switched on before connecting it to the computer 8 1 Serial Connection without interface box Connect the co
58. out of the handle and replace it with a new one Do not open the powerPACK plus With the additional powerPACK you need 4 AA size batteries When re assembling the instrument Make sure that the powerPACK plus is in the correct position and orientation as shown in Figure 53 Make sure that the lid fits tight and that the housing is closed accurately and the screw fixed Connect the power supply in order to re charge the powerPACK plus check the LEDs on the back side of the device At least the green LED should light up indicating the external power connection A The batteries are not fully charged on reception of the Instrument Batteries have to be inserted into the identiFINDER and the device has to be connected to power supply before operation for at least 12 hours A Do not open the powerPACK plus The warranty will be void if seal is broken User s Manual 77 identiFINDER Figure 51 battery pack powerPACK plus 11 4 Replacing the powerPACK or inserting standard batteries To replace the powerPACK or insert other standard AA size batteries Switch off the identiFINDER Turn the screw battery pack lock on the battery lid anti clockwise until the lid can be removed Figure 53 it is not necessary to unscrew the lock completely Shift off the handle towards the back side of the device Take the powerPACK out of the handle Open the powerPACK by unscrewing the screw completely Insert 4 fully charged AA size bat
59. ppropriate message RATE WARNING RATE ALARM is faded into the top line of the FINDER mode display 7 4 Dose rate Settings OR SETTINGS fil ren DOWN SELECT BACK Figure 20 Options selectable in DR Settings menu User s Manual 99 identiFINDER Mark either the selection of the integration time IntTime s or the dose rate unit Unit by moving the inverted field DOWN and press SELECT to make changes IntTime s In the DOSE rate mode the dose rate reading is actualized every second The shown value is the average dose rate during the last IntTime s seconds Values between 1 and 30 can be selected by pressing or followed by ACCEPT The default setting is 15s The larger the integration time the less the dose rate reading fluctuates The averaging process is suppressed when large dose rate changes are detected Unit Possible settings for the dose rate unit are Sv h or rem h additionally the unit Bq can be selected which is true only for a defined geometry i e 1 meter distance to the source All units including the limits for dose and dose rate alarm will be converted according to the rule 1Sv 100 rem Especially for medical applications e g lodine 131 treatment the unit Bq for an activity determination is available Using this setting the display in the DOSE rate mode will change to the following Figure 21 a ag ACTIVITY 1 mtr
60. rresponding miniUSB to serial cable to a COM port of the PC and the other side to the instrument 8 2 Serial Connection with the interface box Connect the miniUSB to serial cable to a COM port of the PC and the other side to the interface box Use a miniUSB to miniUSB cable to connect the interface box with the device Additionally the power supply can be but does not necessary have to be connected between mains socket and interface box User s Manual 63 identiFINDER Figure 43 Charging the batteries and connection to PC with O orange LED trickle charge green LED external power mini USB connection to identiFINDER USB connection to PC external power supply interface box serial connection to PC User s Manual 64 identiFINDER 8 3 USB Connection Use a miniUSB to miniUSB cable to connect the interface box with the device Connect the USB to USB cable to a USB port of the PC and the other side to the interface box Additionally the power supply can be but does not necessary have to be connected between mains socket and interface box The operating system will detect a new USB device and try to install two separate drivers Please have the installation CD prepared when connecting the identiFINDER to the USB port of the PC for the first time Installing the driver for the Interface box Connect the interface box to your PC USB port and insert the software CD into your CD ROM drive Click Next
61. senease 83 User s Manual 5 identiFINDER 12 13 No Spectrum Transfer to PC os eeeeeeseseesesseseeseseeseeseseeeeeeenee ees 83 WS GPeCiACAtlOMs 5 6s dsscsisncsecsecestenussssassaesesusesoesdssndessgesieseshsssessensosecsosseesusoes se 85 14 Quick Reference Guide cssscssscecsssssececesessssscssscscsssesasscecessesscaces se 92 14 1 Ab a GLannce nar ee a E A A REE 92 14 2 Switching ON the identiFINDER ssssissssissssssesssssrrsrisrsesrsssssessees 93 14 3 Searching for a Radiation Source 00 0 cesses eeteereeeeneeneee es 94 14 4 Source Characterization Nuclide Identification 6 95 User s Manual 6 identiFINDER 1 Introduction The identiFINDER NHG is a digital hand held gamma spectrometer designed for in situ operation with special features of Searching for single radioactive gamma sources or for areas of contamination with gamma radio nuclides Automatic identification of radio nuclides based on measured gamma ray spectra Gamma dose and dose rate measurement Indication of the presence of neutrons in the radiation field by presenting neutron count rate and accumulated neutron counts It carries out qualitative and quantitative analysis of gamma radiation using a 14 2 Nal Tl other customized detectors may be available for special applications e g for EOD and an internal Geiger Mueller GM tube An on board DSP Digital Signal Processor with sophisticated software and an internal da
62. t Initialization screen Wait until the initial Cs 137 calibration has finished gt DOSE rate mode The instrument is ready to operate Dangerous radiation levels are indicated by acoustic visual and or vibration alarms User s Manual Illustration OON w 4 4 target insight hee DOSE RATE S 0 11 is 8 88 cps Neutrons LOG Remark Start up screen Initialization screen After the initial calibration is finished successfully the instrument is ready to operate the dose rate screen appears DOSE rate screen Battery voltage in Volt is shown in the upper left corner 5 7 The stabilization status is shown in the upper right corner S OK N not OK Dose rate is shown in big letters and indicated by the logarithmic dose rate bar Neutron count rate is shown All alarms are active identiFINDER 14 3 Searching for a Radiation Source Action From DOSE rate mode press L to switch to FINDER mode to localize the source gt Background measurement Wait until background measurement is done gt FINDER screen Move the identiFINDER watch the screen and listen for the acoustic signal You will be guided to the source of the gamma radiation If the source is located you may measure the local dose rate identify the nuclide User s Manual Illustration Measuring background Please wait
63. ta base enables the identiFINDER to carry out the above mentioned functions The neutron indication is based on a moderated He tube Small size and low weight as well as the three button menu driven operation combined with a reliable self calibration make the identiFINDER convenient to use for anyone The initial calibration and furthermore the permanent and continuous stabilization running in the background in parallel to any performed measurement are based on an internal Cs 137 stabilization source Digital signal analysis replaces the old fashioned analogous signal shaping The standard delivery of an identiFINDER instrument consists of the following components Figure 1 or Figure 2 Aluminum or plastic carrying case with Hand held spectrometer identiFINDER neutron moderator box optional box with Potassium for enhanced K 40 background optional identiFINDER N User s Manual powerPACK plus includes rechargeable batteries powerPACK for the use of standard AA size batteries not included external battery charger optional identiFINDER system cable for connecting to a PC using the USB or RS232 interface and for recharging the batteries external power supply with mains adaptors external earphones for silent alarms optional requires Hardware modifications source kit only for EOD applications holster with belt attachment tool and strap winTMCA32 and identiFINDER transfer software C
64. tart the test routines immediately after this Menu Item has been selected First the keys will be checked The identiFINDER will ask the user to press the buttons see Figure 37 Hardware test Please press left key Figure 37 Hardware test Keyboard left key If the left key signal is recognized the test will proceed to the next point automatically If the key press is not recognized or the user did press a wrong button the device will display Keyboard Error Left key not ok Then the user must press the middle key similar to Figure 37 If the middle key signal is recognized the test will proceed to the next point automatically If the key press is not recognized or the user did press a wrong button the device will display Keyboard Error Middle key not ok Last remaining test is the right key similar to Figure 37 If the right key signal is recognized the test will proceed to the next point automatically If the key press is not recognized or the user did press a wrong button the device will display User s Manual 58 identiFINDER Keyboard Error Right key not ok Next the functionally of the display can be verified The device will show three different pictures on screen the checker board a plain black and plain white display The following screens will tell the operator Hardware test Displaying for 2 s Checker board The display should switch into a black and white pixilated picture And
65. teries as demonstrated on Figure 52 Make sure to charge rechargeable batteries outside the powerPACK with an external charging unit Be aware that it is not possible to charge any kind of batteries using the powerPACK ate W143 Vul Figure 52 Placing standard batteries into the powerPACK User s Manual 78 identiFINDER Close the powerPACK and tighten the screw When re assembling the instrument Make sure that the powerPACK is in the correct position and orientation as shown in Figure 53 Make sure that the lid fits tight and that the housing is closed accurately Figure 53 Replacing the powerPACK or powerPACK plus User s Manual 79 identiFINDER 12 Trouble Shooting 12 1 Cannot switch on the device Check the batteries Open the battery box at end of the grip Check if the powerPACK plus or powerPACK with 4 AA size batteries is inserted and well charged Charge the powerPACK plus if necessary with the internal charger Connect the device with the provided cable and power supply to a mains socket Or insert a new set of batteries into the powerPACK Press ON button for a few seconds until the lights flash up Try again 3 4 times if necessary If these steps are not successful the identiFINDER must be sent back to the manufacturer 12 2 Failing initial calibration Switch identiFINDER OFF and wait a few seconds Switch the identiFINDER back ON Wait for the result of the initial calibration There
66. uclide references are listed with the normal field of appearance i e OSI for On Site Inspection Nuc for nuclear isotopes Med for isotopes used in therapy or diagnosis Ind for industrial and NORM for Natural Occurring Radioactive Material in front the isotope name and its mass except for special entries e g Annih Rad for annihilation radiation spectrum plus the libraries which inherit this isotope By using DOWN or UP each individual entry can be marked for making changes with SELECT Each press of User s Manual Ad identiFINDER SELECT toggles through all combinations of library possibilities The abbreviations stand for Mh O Mh N Mh M Mh Mh C Mh g OSI Nuclear Medical Industrial Customs Security a To exit the isotope list it is possible to use the ON OFF button instead of scrolling up to the first nuclide available A No entry can be added to or removed from the OSI library The default settings for the different libraries are summarized in Table 2 description library library HAE oar xX paces x arcana XP User s Manual 43 identiFINDER Fea SS A AT Med 1 131 peer RP Z Z Z Z Z o o ajajajaja x 3 S 8 9 LIIN N ies STS 5 zZ alalaji o gt gt 2 S Bj j H 8 R B S 3 5 Ss aj a O19 ag EE Ind Bi 207 mace tt tx ft Ind Co 60 Ind Cs 1
67. up Figure 44 or similar may be ignored it does not contain any important information Click NO it will never show up again Tmcadrv32wdm A TMCA configuration Port number 1 is a COM 0 device model identiFINDER Show this message always at program start me Figure 44 Pop up when software has been started for the first time A second pop up window Figure 45 should appear stating an identiFINDER has been connected Please confirm by clicking OK and the software will start Tmecadrv32wdm x A MCA Port 1 identiFINDER connected to COM1 Figure 45 Message when the identiFINDER has been detected by the software If the device is not found i e the pop up does not appear a new text file named TMCAINIT TXT must be created in the winTMCA32 installation path subdirectory CONFIG containing the following line p 1 F n 384 User s Manual T 66 identiFINDER The n represents the COM port number where the identiFINDER is connected to If you use the serial COM port RS232 n is in most cases equal to 1 whereas if you use the USB interface n is in general larger than 2 User s Manual 67 identiFINDER 9 Basics of the winTMCA32 Software This chapter will give a rough overview of the basic winTMCA32 functions available for the identiFINDER For a detailed guide and additional information please refer to the winTMCA32 manual Switch on the device and start your winTMCA32 software Enter the
68. urally Occurring _Radioactive _ Materials Corresponding nuclides may be present in various materials like fertilizers ceramics welding rods etc and in the natural environment OSI library contains all isotopes that may be present at_On_Site Inspections of Nuclear Test Fields Nuclide listing not identified SPECTRUM IT Figure 16 Results of identification Not identified If the message Nuclide listing Not identified Figure 16 appears the identiFINDER acquired sufficient data and executed the identification algorithm but did not find a matching spectrum in the library selected User s Manual 99 identiFINDER During the data acquisition either a dose rate warning optional feature tone sequence or a dose rate alarm permanent tone indicates that the dose rate exceeds the corresponding thresholds but no message is displayed After a successful or non successful identification the operator can choose one of the following actions by pressing the corresponding button SAVE SPECTRUM The measured spectrum will be stored non experts if password is chosen but has not been entered or can be viewed expert users only if either no password has been chosen or the correct password has been entered depending on the access rights of the user Stored spectra can be transferred to a PC for a more detailed offline analysis Altogether 100 spectra can be stored numbers 0 1 2 99 If the spectrum memory is full and
69. v 7 2 Gamma N Counting In the Gamma N Display Figure 18 three values are displayed N rate The actual neutron count rate value is given in counts per second cps N counts The accumulated neutron counts are displayed This value together with G counts and T count can be stopped STOP CNT and reset RESET CNT using the middle button The corresponding time frame is given by T count G counts The accumulated gamma counts are displayed This value together with N counts and T count can be stopped STOP CNT and reset RESET CNT using the middle button The corresponding time frame is given by T count T count The time expired since the start of the N counts and G counts is available here It is given in seconds and can be stopped STOP CNT and reset RESET CNT together with N counts and G counts using the middle button G dose The accumulated gamma dose is displayed It is given in the selected unit i e Sv or rem This value together with T dose can be reset RES DOSE using the left button The corresponding time frame is given by T dose User s Manual 27 identiFINDER T dose The time expired since the start of G dose is available here This value is given in seconds and can be reset RES DOSE together with the G dose using the left button N rate HAN crs N counts counts 68847 T count 515 5 dose 1383 4 mre T dose 554892 5 RES D
70. wait a few seconds and then start it again Check for the pop up window Figure 45 if it does not appear create a text file as described in Chapter 8 4 Make sure no other application is using the desired COM port if necessary close up this application also it is not possible use the winTMCA32 and the Transfer software simultaneously User s Manual x 83 identiFINDER If you are using the USB port it may be necessary to check the settings please refer to Chapter 8 3 for details User s Manual 84 identiFINDER 13 Specifications Features Functions Main detector Integrated ancillary detectors Integrated electronics Physical Dimensions Weight Temperature range Protection class Drop test Dimensions User s Manual x 85 Dose rate display radiation guard and alarm annunciator source finder gamma ray spectrometer spectrum analyzer nuclide identifier spectrum memory dose rate logger neutron indicator 14 2 Nal Tl scintillator other detectors available on request Geiger Mueller tube GMT for high dose rate measurements moderated He 3 tube He3T for neutron detection Digital Multi Channel Analyzer for main detector Flash ADC Digital Signal Processor DSP Enhanced Filter Coprocessor EFCOP HV power supplies for main and ancillary detectors Shaping Amplifiers and Discriminators for ancillary detectors GMT He3T serial interface RS232 USB 1250 g including batteries and
71. when you are supposed to search for driver recommended and choose your CD ROM drive Accept the driver that was found ftdibus inf If necessary browse to the directory of your CD Finish the first part of the installation Now a second INF file will be installed ftdiport inf Follow the instructions on the screen accordingly Changing the COM port number of a USB port From Device manager select view devices by type then Ports COM and LPT Select the USB serial port and click Properties Select the Port Settings tab and then click Advanced Choose the required COM port number from the list and click OK If a modem is attached to the USB serial port when the port number is changed it will continue to work under the new port number A If a modem had been attached to the USB serial port but was not connected when the port number was changed it will not work when re attached under the new port number In this case the modem must be removed from the system and re installed User s Manual 65 identiFINDER In general if there are devices in use that have been previously attached to the USB serial port they may not work after the port number has been changed If this is true remove the device from the system and re install it 8 4 Starting the winTMCA32 or identiFINDER Transfer Software The software should detect the connected device automatically the device must be running The first pop
72. you try to store a spectrum the instrument displays the message No empty slot found do you want to overwr old spec Accepting this by pressing OVERWRITE opens an entry field and by using the SKIP command the operator can select the spectrum to be overwritten EXIT The instrument returns to the menu selected previously If the detected radiation exceeds the alarm levels during the acquisition time the vibrator as well as the beeper will not be switched on The red LED will even if the LED is switched off indicate a dose rate alarm with flashing a dose alarm with permanent illumination The blue LED will accordingly show the neutron detection The main reasons for failures in identifying unknown sources are The source to be characterized is an irresolvable mixture of several nuclides The source is heavily shielded The stabilization may temporarily be switched off go back to the DOSE screen and check the letter in the upper right hand corner If User s Manual 93 identiFINDER the device indicates N try a recalibration please refer to Chapter 12 for troubleshooting tips CONTINUE optional can be added by factory on request The instrument will prolong the data acquisition for another period and may hence improve identification for weak sources User s Manual 9A identiFINDER 7 Expert User Modes These advanced modes allow access to a multitude of device parameters and opt

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