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ORTEC Micro-Detective and Detective

1. 73 Monitor Mode portal monitoring 5 4 63 ceva es hae es 31 rapid SULVE VS rS obere disorders Sev 3l Neutron count rate cs ids er ERIS ER 59 Operating cautions i iced emo Rte ed 13 Password enter to change settings 50 51 SEU PASS WOLD isis ound de hela es ER SC 56 Power exhausted battery startup from 70 internal vs external 3 eo gobi 5 4 es 13 Power adapter charger 100 931046G 0714 CAUUIONS 1 osos edt teeta PECORA SC 13 DONWOD u 9 dM ios dots bsc A PCR Sob 13 Quantitative analysis 235 4r ER S SER 76 RDD Detected message o rS os eden 40 Reference point detector 88 Remote sereen aee ine ERES be 60 Reports found nuchdes 41 enced es a 27 48 GIDS irr dtes aas ee OVER eee ee 83 GPS location dag 35er SER ee eden 49 ID report 5 6S eb ee et eae ed aus 48 Suspectmuclides iu eer PERI 27 49 top lines most intense 28 49 viewing stored spectra and reports 46 47 Restricting access to settings 56 Search Modes s aw ad Byte Sh A dere ees 3 strip chart CHN and N42 files 7 dwell time per channel 57 monitoring count rate 4 30 sont REF 14 92 Shutdown for long periods storage 14 92 SNM Search Mode 4 3 dl ERO EX S 3 32 SED eee ma ee e P E ee 57 Spectrum delete stored spectra esee BER SEEDS 62 Display Mod ssd ma ERU CES 29 enter a description 364r Sh eee baat 61 file st
2. 4 IDENTIFICATION MESSAGES AND RADIONUCLIDE LIBRARY Category ANSI Mode Classify Mode Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Medical Medical Medical Industrial Industrial Medical Medical Industrial Industrial Industrial Industrial Medical Industrial Industrial Other NORM Industrial Industrial Industrial NORM Other Medical NORM Medical Medical Industrial Other Industrial Medical Other Medical Industrial Industrial Industrial Industrial Industrial 37 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 EARO Category Identification 3 ANSI Mode Classify Mode Nd 147 Innocent Industrial Neutrons Threat Other Neutrons CR Threat Neutron Neutrons on Fe Threat Other Neutrons on Hydrogen Threat Other Np 237 Threat Nuclear Neptunium Os 194 Ir 194 Innocent Other Pa 231 Innocent Industrial Pb 203 Innocent Industrial Pd 103 Innocent Medical Po 210 Innocent Other Pr 144 Innocent Industrial Pu 238 Threat Nuclear Plutonium Pu 239 Threat Nuclear Plutonium Ra 223 Innocent Industrial Ra 226 Innocent NORM Rb 83 Innocent Medical Rb 86 Innocent Medical Rh 105 I
3. Figure 19 Identification Mode Screen in ANSI ID Display Mode Storage Space 49029 Neutron Count Rate 0 cps y Dose Rate 0 79 wSv h Found Nuclear Uranium 2 Found NORM Th 1 Display Figure 20 Identification Mode Screen in Classify ID Display Mode identified at too low a confidence level to list them as definitively found 25 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Chapter 4 lists all nuclide IDs along with ANSI their threat suspect innocent status and Classify category In addition this screen allows you to Pause Continue the current identification measurement This button has additional func tions if you are counting to a real time preset see Section 3 2 2 e Save the current spectrum and IDs Section 3 2 3 On the Classify display tap to display found nuclide reports Section 3 2 4 e Tap Intense to display a continuously updating list of the 10 highest confidence peaks currently being detected Section 3 2 5 e Display the real time spectrum for the current data acquisition Section 3 2 6 unless the spectrum view has been disabled on the Settings dialog Section 5 2 4 2 in which case there will be no Display button on the screen e Switch to Search mode Section 3 3 If you do not Save the current spectrum and identi fication results before going to Sear
4. 53 final mandatory step in calibration 22 ID and Monitor Modes disabled 15 invalid background 15 minimum data collection time 46 54 performing the background measurement 46 required after manual calibration 45 Batlety 2 2 nee dcs mimoen Bk Saeed E RR 13 cannot cool detector 43 exhausted startup from 70 TEPlACiNG os sns vue Pag hen S n 10 95 Calibration check 000 19 43 auto calibration 0 0008 51 man al x 42 queso URNA Bk oe RE 43 new background required 21 22 45 troubleshooting ucro eR ernie 71 user defined sources 20055 51 Calibration source 0 002 eee eee 19 usersdefimed uos ae So P be 51 eon COP 13 Connecting toa PC oco e Rh Reis 75 using MAESTRO 71 Cooler CIULIOHS rns ea s ws E ARE E Som Paten m 14 detector warmup 20055 92 POWEr SOUICES sod sus wd do A RC CR 13 DONVET UD us e doce ob E OU RES Ia Rie 16 restarting 2s epe HOUR oan od SCR 16 SBIDDIIB 1o Eso da ease dn oh So ds 92 shipping preparations 14 shock tolerance aus Rm ets 14 shutdown for brief periods 43 shutdown for long periods storage 14 92 StartUp lt i mer d Se dees eA EUN 43 Data transfer to PC 00055 27 Detective 200 2 2 escis RA Rv RS exes 12 amplifier settings lesen 78 80 batter
5. If the Ba 133 search is enabled four bar graphs will appear on the SNM Search Mode screen instead of just three see Fig 28 on page 32 The Dwell Time setting is the same for all SNM radioisotopes To set the Q Alarm Threshold for each gamma emitter tap the radioisotope name tap in the threshold field to open the soft keyboard enter the desired value and tap Set Figure 63 shows the setup dialog for Pu 239 To set up the Neutron count rate for units so equipped in counts per second tap the Neutron tab tap in the threshold field to open the soft keyboard enter the desired value and tap Set To enable the Ba 133 search Fig 64 mark the Include in Search checkbox and enter the desired alarm threshold value then tap Set When this feature is disabled the Ba 133 bar graph is not displayed on the SNM Search Mode screen Tap Back to return to the Survey Mode screen Adv 1 27 11 4 12 49 PM Adv 1 27 11 4 05 56 PM Setup Battery Time 193 min Setup Battery Time 191 min Pu 239 Q Alarm Threshold Ba 133 Q Alarm Threshold bo sa zo al Include in Search Dwell Time Seconds Dwell Time Seconds Figure 63 Configure the SNM Search Figure 64 Enable the Ba 133 Search and Alarm Threshold 931046G 0714 5 ADVANCED SETUP 5 2 7 Dose Rate Units and Alarms In all modes the Detective alarms audibly and visually at a gamma dose rate of 10 000 uSv hr 1 rem hr and or the neutron
6. Back from the Advanced Setup dialog Fig 11 on page 20 returns you to the Survey Mode screen Fig 17 On any entry if you just tap Back without tapping any other keys the current value will be used that is no change will be made Therefore if you open a dialog by mistake you can just tap Back to return to the previous screen without changing any values If a text or number entry is needed a soft keyboard will be displayed at the bottom of the screen Tap the letters or numbers desired and then tap OK The Identification Display and Search screens have a Save button In Identification Mode and its accompanying Display Mode this saves the current energy histogram spectrum and any identification results In Search Mode a histogram of counts vs time is saved The storage location and file format s are selected on the Spectra screen Section 5 3 3 The Spectra screen also includes an Ask for Sample Description option that lets you save a text description comment with Identification Mode spectra 2 8 Customizing the Detective Settings In addition to cooling and calibrating the Detective there are a number of software parameters to be configured 18 Data storage location and spectrum file format s See Sections 5 3 3 3 and 5 3 3 4 page 61 We recommend that spectrum files be stored on SD card rather than on the Detective computer Identify Mode settings Section 5 2 3 page 54 tells how to select the ID Display m
7. Calibration Now Gamma Count Rate 47 cps 4 Run a Background Restore Default Figure 15 A New Background Is Required 21 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 2 10 Running A New Background After Calibration The manual calibration routine deletes the current background chn file Therefore the final step of manual calibration is to run a new background NOTE This section discusses only the mandatory background measurement required to com plete the manual calibration For the full discussion of Detective background mea surements see Section 5 2 2 As noted elsewhere until you complete the background measurement the Identify and Monitor Modes are disabled The minimum acceptable data collection time for the background meas is set on the Bkg Set tings screen see Fig 55 page 54 Note that for optimum counting statistics we recommend a minimum 30 minute background acquisition However the background settings screen also allows minimum intervals of 1 5 or 15 minutes 22 All sources should be removed from the area before you tap the Run a Background button at the end of the manual calibration routine If you leave the source in place a high count rate message will remind you to remove the source and restart the calibration Tapping the Run a Background button opens the screen shown in Fig 16 and automatically starts the back
8. Calibration Now button shown in Fig 36 The button name will change to Abort Calibration and the time remaining to complete calibration will be displayed as in Fig 37 The time to completion is based on the peak count rate Calibration will not succeed until the calibration peak passes the quality test You can abort the calibration process at any time no changes will be made to the calibration coefficients i e the existing calibration will still be in effect 43 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Adv 1 27 11 3 18 53 PM Adv 1 27 11 3 19 03 PM Setup Battery Time 193 min Setup Battery Time 191 min 1 Place Co 60 in front of the Micro 1 Place Co 60 in front of the Micro Detective Detective 2 Start Calibration Now 2 Abort Calibration Calibration in progress Time remaining 5 minutes Gamma Count Rate 1327 cps Gamma Count Rate 1306 cps Te re Figure 36 Start Manual Figure 37 Wait for Completion Calibration At the end of the calibration period the Use Improved Calibration button will be displayed Fig 38 along with the actual energy of the calibration source peak For the factory defined sources the Centroid values should ideally be e Cs 661 62 keV e K 1460 75 keV In addition the screen will display the full width at half maximum FWHM an indicator of peak shape and the ca
9. Detective are 1 the SD card which is indicated as Storage Card Data and 2 the computer s My Documents folder If the SD card is not present in its slot it will not be on the list Tap the location you want 5 3 3 4 File Save Format The Detective application generates two basic types of files e Identification Mode gamma ray spectra Search Mode strip chart histograms of gamma and optional neutron count rate vs time The File Save Format feature Fig 70 lets you choose to generate these files as ORTEC file formats ANSI N42 42 format files compatible with ANSI N42 42 2006 or both For more detailed information on file formats see Section 1 4 2 61 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Adv 2 20 11 4 06 21 PM Adv 2 20 11 4 06 21 PM Setup Battery Time 178 min Setup Battery Time 178 min Ask for Sample Description Ask for Sample Description Default Description Default Description u m m o m Data Location Data Location My Documents Y My Documents v My Documents F Storage Card File Save Format Soo ET WW ATYU Sh ORTEC and El ORTEC spc and chn ANSI N42 42 Both ORTEC and ANSI aide Figure 69 Select the Data Figure 70 Select the Data Location Format s 5 3 3 5 Delete Stored Spectra To delete a stored spectrum file tap Delete This opens Adv 7 17 11 2 43 54 PM the Choose File dial
10. Full In this way you can easily look at the peaks in the spectrum in detail Zoom in and move quickly from energy to energy in Full mode Zoom In lt gt The lt gt button expands the display by halving the number of channels so the peaks appear wider The center channel of the new display will be the marker position 29 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 The Search Mode screen is a strip chart emulation Search GPS not communicating that displays total count rate gamma and neutron vs Mode Storage Space 25169 time see Fig 25 The gamma ray data are presented Neutron Count Rate 1 cps in blue and the neutron data are shown in red To adjust the x axis dwell time see Section 5 2 5 Because the spectrum display area is limited a modi fied version of scientific notation is used when labeling the Y axes for numbers greater than or equal to 10 000 The number of trailing zeros in the number is replaced Marker 241 Cnts 1 Cnts by E followed by the number of zeros Some exam ples 10 000 becomes 1E4 12 000 becomes 12E3 0 cps and the neutron data are scaled from 0 to 500 cps The Y axes can be autoscaled Scaled Y so the current maximum Y value for both counts is near the top of the graph as shown in Fig 25 or fixed Fixed Y such that Zoom Out gt lt The gt lt button contracts the display by doubling the number
11. Medical Medical 39 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 4 1 Comments on Classify Mode Messages The following explains the criteria for selected Classify ID Display Mode messages HEU highly enriched uranium This message is displayed if the major lines of uranium are detected and the ratios of the intensities of the lines indicates the U content to be above about 70 Am241 unshielded in the Industrial category This message is displayed if the 59 keV peak is located It could mean that an Am source such as a smoke detector is present Move closer to the source and or count longer This will allow the higher energy gamma rays to accumulate in the spectrum in case plutonium is also present Unknown peak and Unknown Beta emitter This indicates the gamma count rate is higher than can be accounted for based on the peaks in the Detective library The implication is that either an unexpected nuclide or a beta emitter is present beta emitters typically producing counts over a broad range of energies Move closer to the source and count longer to determine the nature of the suspect item 4 1 1 Comments on Found Nuclide Screen Messages RDD Detected This message is posted when calculated activity is 2100 mCi whether the activity is from threat or innocent nuclides The gamma count rate and dose rate meters on the Survey Mode and ID Mode screens display a flashing
12. Nuclide Identifiers User s Manual 931046G 0714 Fig 18 The factory set alarm limits are 10000 uSv h for the Gamma Dose Rate and 500 cps for the Neutron Count Rate bar To set lower limits see Section 5 2 7 Survey 1 27 11 3 58 40 PM E y Count Rate 2043 cps Mode Battery Time 198 min N Neutron Count Rate 1 cps y Count Rate 6678 cps y y Dose Rate 0 01 mrem h y Count Rate 13534 cps ll y Count Rate 691 cps Status READY y Count Rate 20200 cps flashing er Figure 18 The Gamma Count eee Rate Meter As Count Rate Identify C9 Figure 17 The Survey Mode Screen When the gamma dose rate goes above the limit the WARNING High Gamma Dose Rate message is displayed in the Instrument Status Area and an alarm sounds You can optionally choose to set lower gamma dose rate and neutron count rate alarms using the Dose Alarm setup feature under the Advanced Settings screen Section 5 2 7 Tap Identify to start the Identification Mode Section 3 2 Tap Monitor to start the Monitor Mode Section 3 4 Tap Search to start the Search Mode Section 3 3 Tap SNM to use the SNM Mode Section 3 5 Tap Advanced to display the Advanced Setup dialog Chapter 5 NOTE Ifa blue simulated LED is displayed in the upper left beside the screen title the instrument is in the LCX radiation detection mode which we strongly recommend for use only by experienced
13. OK or ERR e Battery Voltage reported in volts e Battery Time Remaining in minutes e Cooler Body Temperature OK or ERR Cooler Drive Voltage OK or ERR Cold Tip Temperature OK or ERR e HV Bias in volts e ID Table Version reports the identification table version and release date To resolve status problems refer to the troubleshooting chapter For further assistance contact your ORTEC representative or our Global Service Center 8 3 8 Reports This tab Fig 86 displays the reports Properties for LS MCB 137 available for the current spectrum file ji cidni TD Amplifier Amplifier2 ADC HighVoltage About Or Ve spectrum Menem the 2 Status Reports Presets MDA Preset Found Nuclides Suspect Nuclides T P A ID Report m op Lines and for units so equipped GPS reports You must be running Found Nuclides Suspect Nuclides MAESTRO or other ORTEC pro Top Lines grams that use CONNECTIONS ll v6 09 06 or later Average neutron count rate 0 0 cps When using the Detective as an MCA controlled by the host com puter be sure to click the Refresh button for each report to ensure you are seeing the most current data Figure 86 Reports Tab For more information on the contents of these reports see Section 5 1 6 83 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 8 3 9 Presets Figure 87 shows the Pres
14. Setup Storage Space 1951 L Ask for Sample Description Default Description Data Location My Documents v File Save Format Both ORTEC and ANSI v Figure 68 Spectrum Description and Location Settings 931046G 0714 5 ADVANCED SETUP 5 3 3 1 Ask for Sample Description You can optionally store a spectrum description comment with each spectrum you save If you mark this checkbox each time you save a spectrum an ask for description dialog will open so you can add a description or modify the current Default Description discussed next 5 3 3 2 Default Description This option lets you save a default sample description comment with every spectrum file Tap in the dialog to display the soft keyboard and tap Set to save your entry You can also use this with the Ask for Sample Description In that case when you save a spectrum an ask for descrip tion dialog will open giving you the option of adding to modifying or even deleting the cur rent default description This is a good way to enter the main portion of the description ahead of time then add a unique identifier such as a sequence number to each spectrum as it is acquired 5 3 3 3 Data Location This field Fig 69 allows you to choose the storage device or location for the spectrum storage The location you choose becomes the default location on the spectrum display dialog Tap the down arrow to open a list of valid locations which for the
15. When the instrument has cooled ven to operating temperature the bias voltage automatically turns on Figure 35 Turn Cooler Off NOTE The Detective internal battery does not have enough power to cool down the detector from room temperature therefore external power is required In addition an exhausted internal battery should be charged for 2 hours before the Detective is cooled using external power If you are using a standard 12 V automobile battery as the external power source the detector cooling can significantly discharge the battery Cooler startup without external power cause operational anomalies see troubleshooting Section 7 5 You can turn the cooler off for 10 20 minutes without significantly warming the detector As soon as the cooler is restarted the Detective typically posts the Ready status within a few seconds The cooler can be restarted at any time without harming the detector crystal regardless of whether the detector is warm partially cooled or cooled to the operating temperature range 5 1 3 Calibrate Manual This command starts the manual calibration routine which checks and adjusts the Detective s electronics so that it correctly identifies the nuclides in the area The calibration source to be used must be pre set within the Cal Settings function as discussed in Section 5 2 1 5 1 3 1 Start the Calibration Position the indicated calibration source in front of the detector window then tap the Start
16. and dry Where possible avoid placing it on warm surfaces such as sun heated pavement for extended periods The front panel memory card slots and rear panel connectors include dust caps keep the card slots and all unused connectors capped The power adapter charger should not be exposed to water When in use it should ideally be placed on a dry flat dust free surface When not in use it should be disconnected from the ac power supply and covered to protect it from moisture and dirt Any covering must be completely removed before reconnecting the power adapter to the input power source Make sure the recharging connector on both the Detective and power adapter are clean and dry before connecting to an the input power supply Both instruments are designed for use at temperatures between 10 C to 40 C at a relative humidity 9096 at 35 C non condensing The HPGe detector assembly is designed to be continuously cooled If the instrument is turned off and allowed to warm between uses it must be cooled and brought to operational status Status Ready for at least 48 hours every month Failure to do this may result in degraded performance or cooling system failure Read Section 9 5 To avoid damaging the cooler and where applicable to comply with transportation regulations be sure the cooler is turned off before shipping the Detective see Section 2 6 2 The unit can be shipped as soon as the cooler is turned off there is no need to
17. background before the Identify and Monitor Modes will function 5 1 4 Background This command begins the background radiation measurement pre configured with the Bkg Settings command discussed in Section 5 2 2 To measure the background e Remove all sources from the area e Tapping the Run a Background button at the end of the manual calibration routine opens the screen shown in Fig 40 and automatically starts the background acquisition Acquisition continues until you tap either Save or Cancel which will return you to the Advanced menu f the measurement is canceled before the minimum time has elapsed the software does not accept i e save and use the new background spectrum Instead it reverts to the existing background file 5 1 5 List Nuclides View Analysis Library This screen Fig 41 displays the current library of radionuclide IDs and library version The complete list of IDs is in Chapter 4 If you wish you can create a text file listing of the library entries by tapping Save to File This creates the file Nuclides txt in the Detective s My Documents folder 5 1 6 Recall Spectra Recall Spectra lets you view stored SPC spectrum files and their associated reports It opens the Choose File dialog Fig 42 which displays the Data Location listbox and the list of spectra in the currently selected location Select the desired data location then use the scrollbar to browse up and down through the list of spe
18. claim with the shipper Instruments not in warranty should follow the same procedure and ORTEC will provide a quotation Damage in Transit Shipments should be examined immediately upon receipt for evidence of external or concealed damage The carrier making delivery should be notified immediately of any such damage since the carrier is normally liable for damage in shipment Packing materials waybills and other such documentation should be preserved in order to establish claims After such notification to the carrier please notify ORTEC of the circumstances so that assistance can be provided in making damage claims and in providing replacement equipment if necessary Copyright 2014 Advanced Measurement Technology Inc All rights reserved ORTEC is a registered trademark of Advanced Measurement Technology Inc All other trademarks used herein are the property of their respective owners NOTICE OF PROPRIETARY PROPERTY This document and the information contained in it are the proprietary property of AMETEK Inc ORTEC Business Unit It may not be copied or used in any manner nor may any of the information in or upon it be used for any purpose without the express written consent of an authorized agent of AMETEK Inc ORTEC Business Unit ADDITIONAL WARRANTY STATEMENT Please note that the integrated computer that controls the Detective is intended exclusively for the tasks detailed in this User s Manual Using this computer for any ot
19. count rate 2500 cps Above these limits the ID Mode s Found Nuclide screen reports the message RDD Detected The Dose Alarms dialog Fig 65 lets you optionally set lower thresholds for one or both types of radiation To set either Threshold tap in the field to display the soft keyboard Enter the desired value and tap Set You can choose display the gamma dose rate in microSieverts per hour uSv hr or millirem per hour mrem hr The Dose Units status message updates immediately to reflect the new dose rate unit To change units tap either the pSv h or mrem h radio button to mark it 5 2 8 Adjust Audio Volume Micro Detective only This feature Fig 66 lets you adjust the speaker and headphone volume or Mute all audio sig nals The Gamma Sensitivity slider sets the number of gamma counts per audio click When finished tap Back Adv GPS not communicating Adv Dead Time 2 09 o Setup Storage Space 25168 Setup Battery Time 201 min C Mute All Sounds y Dose Rate Clicker Volume Min j Max Threshold 1000 set Units pSv hr mrem hr Gamma Sensitivity 10 10 000 Neutron Rate CPS Threshold Figure 65 Set the Dose Rate Units Figure 66 Adjust the Audio and Alarm Thresholds Volume 59 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 5 3 Advanced Setup Page 3 To access the third Advanced menu page Fig 67 tap the
20. display The time period is selectable The gamma dose rate and neutron count rate where applicable is also dis played These strip chart data can be saved on disk in the ORTEC CHN file format e SNM Search Mode This mode lets you quickly sense the possible presence of special nuclear materials U and Pu even if other radioactive materials are present It is designed for rapid area searches as well as fast scanning of containers or vehicles Use it to locate possible SNM then test more rigorously using Identification Mode SNM Search Mode also takes advantage of the fact that the comparatively innocuous Ba can be used as a plutonium surrogate Advanced users can choose to enable a search for P3Ba feature within SNM Search Mode both for training purposes and for developing a site s concept of operations In all modes visual and audible for the Micro Detective alarms warn you of the high radiation field when the gamma dose rate exceeds 10 000 uS v hr 1 rem hr or the neutron count rate exceeds 500 cps on models so equipped You can optionally set the alarm threshold s lower 1 2 Hardware Features The Detective s integrated computer runs under Microsoft Windows Mobile with the Detective as the only program running The operation of the software is controlled by soft buttons in much the same way as any other Windows program A soft keyboard is automatically displayed when any alphanumeric input is needed The color tou
21. eee ee 59 2 95 Adyanced setup PACE 3 rrr e aqui ue De Beh oe amen p ee ety Ade e ees 60 Dede by REMOTE oe oh lide nga wie cC eu e REUNIR Fa ee Ree ne Ree ee 60 i es RID descende e o hate ee p epar t hie ut ed ae ate Nae LR Oed dom pe n e ae 60 92 3 UL A aia vty a ice foetu ee Das iced ea xb eme herd bens tese 60 5 3 3 1 Ask for Sample Description 2545 9 n Cro he Qo OP Ras 61 5 3 3 2 Default Description qned xpi tec Re ee ese Ste Eon Pte i dante gite 61 2 009 00 Data LOCHUDIF e rei P ie donne Modems had qe EE RUNDEN Caw tes 61 D 94 ile save FOIT quessuce ne eent esee es be i Ped e EE 61 3 29 23 Delete Stored Spectra cuc cooks he ioe bi Xe eb Rp E RE PI 62 6 FILE TRANSFER TO COMPUTER 22 33 22 624iti denen E RE EEED e EE ERES 63 OA WAN ME 63 6 2 WMdOWSXP Soit isch Rn oM are a URN tiem gs ORA EET Del uidisse 65 6 3 When File Transfer Is Complete i cedes mes ree Re Ee EE RE WR E E eed 67 T TROUBLESHOOTING eies 24545355 ph oba nett IE ERE Ridouptehtpbp xe 69 Ts Error Saving SPC File Message iocs uret us eae Pet gen Gow REO Satoh ee twee aes 69 72 tthe Detective Prosram Stops 34 e pee t ARRIERE ALI hat 69 T At Yow Drop the Detectye vedi ao d Mes pais EE SER das uo ote cei a Sur dte Sin 69 7 4 If the Detective Will Not Turn On user LEA We See ea a eS IAE 70 7 4 1 Starting from an Exhausted Battery 0 0 0 cece eee eee 70 7 5 If the Display is Lost or Posts a Display Disabled Message
22. for the manual Calibrate feature discussed in Section 5 1 3 The calibration routine checks and adjusts the Detective s electronics so that it correctly identi fies the nuclides in the area This function searches for the calibration source peak in a window 30 keV wide centered on the peak channel for the selected source Once the peak is located and its net area reaches 4000 counts the detector amplifier s fine gain setting is adjusted for opti mum performance Unlike manual calibration auto calibration does not delete the existing background chn file so there is no need to take a new background measurement afterwards To choose a calibration source tap the source list at top left and make your selection To define a calibration source up to two tap the Setup button to open the screen shown in Fig 53 Tap in the Source Name field and use the soft keyboard to enter the name tap in the Energy Peak field and enter the peak energy in keV then tap Back to return to the calibration settings screen The new entry will be available on the source list 51 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Adv Location not determined Adv GPS not communicating Setup Storage Space 25014 Setup Storage Space 25173 Auto amp Manual Calibration Source Source Name Energy keV Cs 137 661 60 or cs137 46075 1332 50 Auto Calibration Schedule Muy Ts on day
23. gamma spectroscopists Be sure to read Section 5 2 3 3 and or refer to your organization s operating procedures before using LCX Mode 24 931046G 0714 3 RADIATION MONITORING 3 2 Identification Mode The Identification Mode lists the radionuclides present and displays them in one of two ways according to the ID Display Mode selected on the Identify setup screen Section 5 2 3 2 There are two ID Display Modes ANSI Mode This is the default mode Radionuclide IDs are listed on a background color coded according to their status as innocent green suspect yellow LCX Mode only or threat red The color background can be suppressed Section 5 2 3 4 e Classify Mode In this mode the list of detected radionuclides are listed according to category instead of radionuclide name e g Medical Industrial Nuclear Plutonium Other Figures 19 and 20 compare the same three IDs as displayed in the ANSI and Classify modes respectively In each figure the Detective has found one industrial nuclide unshielded Am innocent and two uranium isotopes U and U threats ID Mode Location not determined ID Mode Location not determined The expert LCX Mode Section 5 2 3 3 also displays suspected IDs i e nuclides that have been tentatively Storage Space 49029 Neutron Count Rate 0 cps y Dose Rate 0 73 wSv h U 235 U 238 Th 232 Display
24. mode Rise Time Flattop EE width 0 80 8 3 2 1 Shaping Controls Sie ij Tilt 0 00000 The many choices of Rise Time let you precisely control the tradeoff between resolution and throughput InSight Starting with the default value you Start _Stop should increase the rise time for better resolution for expected lower count rates or when unusually high count rates are anticipated reduce Figure 80 Amplifier 2 Tab the rise time for higher throughput with somewhat worse resolution Use the up down arrows to adjust the Rise Time within the range of 0 8 to 23 0 us For the more advanced user the InSight mode allows you to directly view all the parameters and adjust them interactively while collecting live data To access the InSight mode go to the Insight section on the Amplifier 2 tab and click on Start The InSight mode is discussed in detail in the MAESTRO User s Manual The Rise Time value is for both the rise and fall times thus changing the rise time has the effect of spreading or narrowing the quasi trapezoid symmetrically The Flattop controls adjust the top of the quasi trapezoid The Width adjusts the extent of the flattop from 0 3 to 2 4 us The Tilt adjustment varies the flatness of this section slightly The Tilt can be positive or negative range 1 0 to 0 99219 Choosing a positive value results in a flattop that slopes downward choosing a negative value gives an upward slope The dead time
25. not overtighten Figure 5 Carrying Strap Attachment spacers bracket 11 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 2 3 The Detective 200 Figure 6 shows the Detective 200 s major features Its front and rear panel features are identical to the Micro Detective s with the following exceptions and it uses the same internal battery e Ithas no headphone jack or audio capability e The waterproof INPUT POWER connector is position keyed and secured with a screw collet When not connected to external power seal the connector with its threaded waterproof cap The USB port has a waterproof threaded cap that should be left in place when the port is not in use WARNING At 21 3 kg 47 Ibs the Detective 200 is rated by OSHA as a two person lift In addition it is significantly nose heavy Keep this in mind when lifting and positioning the unit SD card slot under Touchscreen and dust cover BRE On Off button Stylus keeper Handle magnetic HPGe detector Rear panel endcap Figure 6 Detective 200 Features 12 931046G 0714 2 GETTING STARTED 2 4 Internal vs External Power The Micro Detective and Detective 200 use power in these ways The internal battery provides gt 3 hours of operation for the Micro Detective and gt 2 hours of operation for the Detective 200 The internal battery can start the cooler howeve
26. noted 1 1 Monitoring Modes The Detective has five radioactivity monitoring modes see also the diagram in Fig 1 e Survey Mode In this home screen mode the Detective displays gamma count rate gamma dose rate meter and neutron dose rate meter where applicable a battery life indicator and an icon indicating the current power source e g internal battery power adapter charger detector dead busy time and available disk storage Micro Detectives may be equipped with an optional moderated neutron detector the Detective 200 is not Other lists of nuclides can be supplied on special order Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Survey Home screen Count rate meters Search Count rate S i Intense i top 10 gamma E Identify strip chart i lines Display j spectrum i 7 Save 7 2 iP SPC and or reser i w N42 84 Figure 1 Detective Monitoring Modes e Identification Mode This mode is used to identify radionuclides from a stationary object of interest Data can be collected for an arbitrarily long period to ensure very low false positive rates Identifications can be displayed by nuclide name ANSI display mode or by classification Classify display mode You can optionally view the spec trum in real time as well as the 10 most intense gamma ray lines The identifi
27. of the month ECAR Shift z x J c vf bf nm J Jt 7 MSIE TUAE Figure 52 Set Up the Auto Figure 53 Enter the Peak Energy Calibration Feature for a Calibration Source To use the auto calibration feature mark the Enable box by tapping it To disable auto calibration simply unmark the box Set the auto calibration interval by tapping the Schedule lists and selecting the desired time of day as well as one of the following intervals Daily Weekly choose the Day of the week Monthly tap in the Day of the month field and use the soft keyboard to enter the day 5 2 1 1 Setup Requirements for Successful Auto Calibration For Auto Calibration to run successfully 52 The Auto Calibration checkbox must be marked enabled The Detective must be in Survey Mode not in another monitoring mode The detector status must be Ready The unit must be properly connected to external power The appropriate source must be in position 931046G 0714 5 ADVANCED SETUP 5 2 1 2 Auto Calibration e During auto calibration the screen displays the Adv 1 27 11 3 19 03 PM time remaining to completion of the calibration Setup Battery Time 191 min as shown in Fig 54 This number is the real time for the calibration spectrum acquisition and is based on the peak count rate Auto calibration will not succeed until the calibration peak Calibration in progress passes the quality test Time remaining 5 minutes e Ifthe D
28. one for the gamma count labeled with a G suffix and one for the neutron count with an N suffix For ANSI N42 files one file with both gamma and neutron count rate with a B suffix is created The filenames are automatically generated Section 1 4 2 and saved according to the spectrum settings Section 5 3 3 To pause a search acquisition tap Pause The Pause button will change to Continue as shown in Fig 26 Tap Continue to resume the search The display will be continuous that is it will not show a gap that spans the paused time Figure 26 The Search Mode Paused To go directly to the Identification Mode tap Identify If you have not already saved the cur rent Search data they will be lost when you change modes To end this search and return to the Survey Mode Fig 17 tap Back The current search data will be lost 3 4 Monitor Mode Use the Monitor Mode Fig 27 to identify radio Monitor GPS not communicating nuclides while moving relative to object s of interest 9 Storage Space 25171 An example application is an ad hoc portal monitor where packages or people pass by the instrument This mode is also useful as a search tool where the instru ment is carried by the user in an effort to locate and identify a radioactive source The Detective collects one spectrum per second and analyzes a rolling window of the eight most recent spectra for radioisotope IDs This makes it particu l
29. overwritten each time the background is updated 1 5 A Note About the Detective 200 User Interface The illustrations and text in this manual reflect the user interface for Detectives that have neutron detectors Note that because the Detective 200 does not have a neutron detector its user interface does not display neutron count rate meters dose alarm controls search controls property pages etc 1 6 The Launcher Interface for Multiple Identifier Applications ORTEC supports our versatile Detective platform with a wide range of nuclide identification applications When only one identifier application is installed on your Detective series instru ment each time the unit is powered on or rebooted it automatically starts up that application If 7 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 subsequent ORTEC applications are added to your instrument our easy to use application Launcher interface runs first making it easy to switch between the ORTEC identifier pro grams and exit to Windows Mobile Figure 2 illustrates the Launcher screen for a Micro Detective with its native Detective program as well as the additional Micro trans SPEC application installed Simply tap the desired appli cation name Note that the Launcher may have multiple pages if many applications are installed tap the scroll paging indicator as needed Detective Micro trans SPEC Figure 2 Th
30. per pulse is 3 x Rise Time 2 x Flattop Width When you are satisfied with the settings Close the Properties dialog and prepare to acquire data Once data acquisition is underway the advanced user might wish to return to the Amplifier 2 tab and click on the Insight section s Start button to adjust the shaping parameters interactively with a live waveform showing the actual pulse shape 79 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 8 3 3 Amplifier PRO Figure 81 shows the Amplifier PRO tab which contains the Low Frequen cy Rejector LFR filter control Turning it off causes shifting and or broadening of peaks in addition to the acquisition of noise in the lowest energy channels We strongly recom mend the LFR be enabled during all data acquisitions Note however that you must turn the LFR off to pole zero the Detective Subsequent measure ments can then be taken with the LFR filter on 8 3 4 ADC This tab Fig 82 contains the Con version Gain Lower Level Discrimi nator and Upper Level Discriminator controls In addition the current real time live time and count rate are monitored at the bottom of the dialog In standalone mode the Detective operates at a fixed Conversion Gain of 8192 channels and the LLD and ULD are fixed at 40 and 8191 respec tively However in MCA Mode the maximum conversion gain is 16384 channels 931046G 0714 Propert
31. red background and extremely high count and dose rates 40 5 The three page Advanced Setup menu covers tasks that are not typically required every work session and that require some knowledge of gamma ray spectro metry and or radiation monitoring The Detective saves all settings and uses them until the next time they are changed Figure 32 shows the first page Tap the Next gt gt and Previous lt lt buttons to move between the three menu screens Tap Back to return to the Survey Mode screen NOTE Youcan set a password on the Settings screen Section 5 2 4 1 to limit access to the second and third pages of the Advanced Setup menu All users can access the first Advanced Setup page so they can view the hardware status perform calibrations and background measure ADVANCED SETUP Adv 5 22 11 6 14 27 PM Setup Battery Time 132 min Turn Cooler OFF Calibrate Background List Nuclides Recall Spectra Tl MU Next gt gt About Figure 32 Advanced Setup First Page ments turn the cooler on off etc as described in the following section 5 1 Advanced Setup Page 1 5 1 1 Status The Status dialog Fig 33 allows you to monitor the hardware diagnostic and data acquisition parameters The default view is a simplified heads up OK ERR readout However you can toggle between the simplified view and the actual readouts Fig 34 by tapping three times in the lower left co
32. step is to check the calibration This procedure checks and adjusts the Detective s electronics so that it correctly identifies the nuclides in the area For an application as important as interdiction of illicit nuclear materials trafficking it is important to know that the nuclide identification is cor rect Routine use of the recalibration feature is a solid means of quality assurance which can be used to support legal proceedings The digital electronics are extremely stable and in most situa tions are unlikely to need recalibration except at long intervals days or weeks However if wide ranges of ambient temperature variation are experienced say a change of 20 C we recom mend checking the calibration more often NOTE Before using the Calibrate feature the calibration source must be selected on the Cal Settings dialog under the Advanced Settings The Detective lets you choose from two predefined calibration sources Cs or K or define one or two of your own sources See Sections 5 2 1 and 5 1 3 A small calibration source can be used in conjunction with the manual calibration check to ensure the unit remains in calibration To perform the manual calibration check e Onthe Survey Mode screen tap Advanced see Fig 11 then Calibrate Position the indicated source in our example a user has defined and selected a Co source in front of the detector window then tap the Start Calibration Now Fig 12 button 1
33. the one shown in Fig 14 If it is larger than 0 3 the cause should be investigated see Section 7 6 The final step is to take a representative background measurement Figure 15 shows the final calibration screen Remove the calibration source tap the Run a Background button then refer to Section 2 10 below 931046G 0714 NOTE 2 GETTING STARTED A new background measurement is required after calibration If you tap Back without accepting the new background only the gamma and neutron count rate meters will function Identify and Monitor Modes will be disabled until another you run and accept a new background For additional information on calibration and calibration setup see Sections 5 2 1 and 5 1 3 Adv Setup Detective Calibration in progress Time remaining 5 minutes 1 27 11 3 19 03 PM Battery Time 191 min Place Co 60 in front of the Micro 2 Abort Calibration Adv Setup Gamma Count Rate 1306 cps ERN E Place Co 60 in front of the Micro Detective 2 Start Calibration Now Centroid 1332 88 keV FWHM 1 87 keV Cal adjustment 0 0396 3 UseImproved Calibration Restore Default 1 27 11 3 24 34 PM Battery Time 196 min Figure 13 Status of Manual Calibration Figure 14 Apply New Calibration Selection Adv Setup 1 27 11 3 24 34 PM Battery Time 196 min Place Co 60 in front of the Micro Detective 2 a Start
34. to mark it To restore access to the spectrum display tap AO the checkbox again to unmark it To prevent spectra from being viewed on the Figure 61 The Settings Screen Detective screen unmark the Allow Display of Spectrum checkbox then set a password in the Advanced Setup dialog Section 5 2 4 1 e Ifthe spectra must not be viewed at any time by anyone we additionally recommend that the field operator not save them NOTE If spectra are saved whether or not the Display Mode is locked a properly configured computer and MAESTRO can still be used to view the saved spectra In such cases the Detective and any memory cards containing spectra must be secured from unauthor ized access according to your site operating procedures 56 931046G 0714 5 ADVANCED SETUP 5 2 4 3 GPS Port The factory setting is COM2 do not change it 5 2 4 4 USB Port This feature allows you to control whether the Detective functions as a standalone identifier or as a full featured MCB with high resolution HPGe detector Data ActiveSync This setting is used for normal standalone Detective operation This is also the setting used to transfer search and identification spectra to a computer via Windows Mobile Device Center Windows 7 or 8 or ActiveSync Windows XP In this mode you do not have access to the MCA hardware functions Control MCA Mode This setting gives you access to the Detective s high performance HPGe detec
35. to External Power and Turning ItOn 15 2 6 2 Turning On the Mechanical Cooler 24 cs 26 ERE RERILORBRXG ERE AEYS 16 Die he User Inte FE 366 esac de iS het p ote teg ee oss end exe teas 17 2T T Instrument Status IndiCators os obse POL EN ee D xa Re 17 2 7 2 Moving Through the Meus ds arb Det p DEP ERR e ERU Rd 17 2 8 Customizing th Detective Settings ssa me hex x xn Rex s 18 2 9 Checking the Calibration au ectosce tta eig C ROC AGE Sena ned Re et Caine Soma Roe ewes 19 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 3 4 5 2 10 Running A New Background After Calibration 0 0 0 0 eee eee ee 22 RADIATION MONITORING 35 anexz bu ek hhe ieee eu wr ao ee eee eae we Fay ds 23 3 1 Survey Count Rate Dose Rate Mode sslsseeeeeeeeeeeee 23 3 2 WOM CANON Mode 9 enc eia a ae bade Sa LOU aU ES Reser aE OER ES 25 3 2 ls Start the Identification coeno Ere nek DENEN Oe ECC EO PER ES a 26 3 2 2 Extending the Countsto Preset 2e ko eov e repere Fed Aem PR UP we 27 SN oT A PC 27 3 2 4 View Found Nuclides List for Classify ID Display Mode 27 3 2 5 Intense View Highest Intensity Spectrum Lines 4 28 322 6 Display Spectrum 4 esee de EN rhon RERO ERES Sa E URDU ee ee 29 3 2 6 1 Display Controls uo tues egeds ceva ferat SORS We abarae wees erate wee ee 29 Scd CALC VIOUS 54 5 hae ae Sate Pewee pu ba
36. wait until the detector warms up For best results we recommend that you not allow the instrument s internal battery to become exhausted and that you read Section 2 4 on the Detective s internal and external power sources When monitoring very high activity sources whether the source is an innocent or threat nuclide if the detector Dead Time exceeds 70 the detector cannot process gamma radiation and generate IDs according to its performance specifications A red indicator in the upper right corner of the screen tells you to MOVE BACK from the source until the 931046G 0714 2 GETTING STARTED 2 6 1 dead time drops below 70 so that the instrument can perform as specified See Fig 9 page 17 When the most recent background reading is no longer valid the Background Invalid message is displayed on the Survey Mode screen The Identify and Monitor buttons become inactive and the system will not post radionuclide IDs until a new background is accepted see Section 2 10 However the gamma and neutron count rate meters on the Survey Search and SNM Mode screens continue to function normally so the unit is still passively monitoring 2 6 Startup and Cooldown Connecting the Detective to External Power and Turning It On Remove the Detective from its shipping carton Survey GPS not communicating Mode Storage Space 25173 Connect the power adapter charger to an ac power Neutron Count Rate 0 cps source and to the De
37. 0714 Intentionally blank 86 9 SPECIFICATIONS Gamma Ray Detector Internal coaxial HPGe detector P type high purity germanium Nomi nal 50 mm diameter x 30 mm deep for the Micro Detective nominal 85 mm diameter x 30 mm deep for the Detective 200 Neutron Detector on Micro Detectives so equipped Single PDT He tube 1 3 cm x 10 1 cm active length 20 atm inside high density polyethylene moderator 3 3 cm x 3 3 cm x 14 cm Internal Compensated Geiger M ller Tube LND 7149 Geiger M ller tube GM tube specifi cations are available on request Gamma Dose Rate Determination Visual overrange indication and continuous audible alarm at dose rates 210000 nS v h The Detective uses two detectors to determine the gamma dose rate over a wide range from 0 05 uS v h to 210000 uSv h a dose rate range of around six decades For low dose rates below 20 uS v h the dose rate is determined from the Ge detector spectrum For dose rates above this value the internal compensated GM tube is used The Detective switches between the two automatically For radiation fields from extended sources e g from a container full of NORM or far field point sources gt 1 ft 0 3 m from the instrument the precise location of the detector in use is not important When point sources are close to the instrument the detector readings might not be in agreement because they are in different places within the instrument and the dose rate is vary ing ra
38. 1 2 Pole Zero Adjustment eos tente eene er unnan 78 5 92 AMpPfier 2 5 o edo pa ruo OUR ACD E QURE ER eos ele E iod dre e RA 79 5 2L Shapins Controls yw scutes eret pep RO Y de REN M ep T 79 583 2 mplinier PRO 6 dos oes dt i Oi nr rb E pap debel dre eR RE 80 SAADE TEE 80 Ode High Voltage ox dovrei i efe gta phe oet tUe TUS esc Spe te ed ec aee t 81 noD DOBLES acta tate are cac dte Sele eons Paton Oe ale renee E NS 82 pow n HC hasten Ep AERE AE TE EA Rae Gen jt E 82 383 0 RO O S cs Lemos ber by eae tet Cag eee og hae eS xd ol et he gcd pia 83 0 2 9 Presets Locros p pace OEE Ge ed ORE die PS Ne par ad RUG bera X a X ed BES 84 9 SPECIFICATIONS ed id Sentai do Ca ac OR Gay e Ce D Rae aed e va ME AE 87 9 1 Electrical and Mechanical sun 55 S tactatay gree nace S DR PE EUR S ORE eaten qox 90 Bo Contic COL 2 ore tse 6 hve Senet Dni Se Glee hee Ges Oros OR d Rw Ripon oR Ewes 91 9 3 Computer Prereg isit s ses ses aides eta cues Bea redes hor oe afe Moda fund 92 9 4 Shipping the Micro Detective or Detective 200 0 0 eee eee 92 9 5 Long Term Shutdown Storage 22e wx vega e REQUE Eae LE 92 10 CHANGING THE INTERNAL BATTERY 0 cece cece re hern 95 INDEX QR MUI EL CMM At acca ag AE 99 Safety Instructions and Symbols This manual contains up to three levels of safety instructions that must be observed in order to avoid personal injury and or damage to equipment or other property These are DANGER Indicates a hazard
39. 2 Pole Zero Adjustment To maintain optimum energy resolution and peak position stability to high counting rates it is important to enter the correct value for the pole zero cancellation Use the default value as the starting point To make a fine adjustment of the Pole Zero setting 1 Use a radioactive source that produces a well defined peak near the upper limits of the energy spectrum At low counting rates note the symmetry of the peak 2 Move the source closer to the detector to achieve much higher counting rates If the peak maintains the symmetry observed at low counting rates no further adjustment of the Pole Zero is needed If high counting rates generate a tail on the high energy side of the peak slightly decrease the pole zero value until the tail disappears If high counting rates generate a tail on the low energy side of the peak slightly increase the pole zero value until the tail disappears 3 Make a final adjustment to balance the symmetry of the peak as closely as possible to the symmetry observed at low counting rates This will result in the optimum pole zero adjustment 78 931046G 0714 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS 8 3 2 Amplifier 2 Figure 80 shows the Amplifier 2 tab Properties for LS MCB 137 which accesses the advanced shap E A S TM ig otage ou atus eports resets ing controls including the InSight Amplifier Ampier2 Amplifier PRO ADC Virtual Oscilloscope
40. 31046G 0714 1 INTRODUCTION Chapter 8 Using the Detective with a computer and ORTEC spectroscopy software Chapter 9 Specifications e Chapter 10 Changing the internal battery 1 4 Spectrum and Search File Storage Transfer and Viewing The Detective can store a nearly unlimited number of Identification Mode spectra in the ORTEC SPC file format ANSI N42 42 format or both Search Mode count rate strip charts can be saved in the ORTEC CHN format The background file is in the CHN format See Section 1 4 2 for more information on file types and filenaming conventions For details on saving and view ing Identification Mode spectra and the associated reports see Section 5 1 6 The files can be stored on user supplied removable Secure Digital SD storage cards or in the computer s My Documents folder we recommend the storage card option The number of spectra stored on an SD card depends on the card s capacity The Detective program automatically creates a Data folder on the card in which spectrum and search files will be stored The home Survey Mode screen has a storage space remaining readout If you try to save to a full SD card simply insert another card with available storage space see also Section 7 1 The background chn file is stored on the computer in the Program Files DetectiveEX folder If it is moved or deleted you must perform a new background measurement before the instrument can be used for radio
41. 6 CHANGING THE INTERNAL BATTERY Battery terminals Front Back Figure 93 Front and Back of Internal Battery 7 Restart the Detective by pressing the on off button then wait for the Detective program to start and fully initialize If you did not turn the cooler off it will restart by itself lf the Detective was connected to external power when you changed the battery simply wait for its status to change to Ready and return it to service Ifthe Detective was not connected to external power the computer must reboot before the Detective program starts Once the program is fully initialized wait another 5 minutes for any alarms to clear Typical alarms may include a warm detector error a detector bias voltage error and or a detector gain stabilizer error If a gain stabilizer error is posted wait another 5 minutes to see if it clears If it does not run a background measurement 8 Return the old battery to ORTEC for recycling 97 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Intentionally blank 98 Administrator Mode advanced setulp use aer A m rhe 41 hiding the spectrum display 56 PassWord srra coven d ve Ub Pa SACRED 56 Alarms dose rate and count rate 59 MOVE BACK 9 ion cae ad Hi CR wee ea 17 RDD carir enaere v iowa enews 40 59 Audio vol me dina dy RES X Ex 59 Background measurements
42. 71 7 6 If You Forgot the Password cs cos nae cous Kanth dara needs baa X RR me PR ceeds 71 Jer Calibration ISSUES mrs Gad ot hak pu hg Quent ESAE ented ad ase ered 71 7 7 1 Calibration Takes Very Long to Complete or Does Not Finish at All 71 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 7 7 2 The Centroid FWHM or Calibration Adjustment Value Has Changed Dramatically Since the Last Calibration 0 0 0 0 eee ee eee ee 71 dono SGP SASSUCS s Sena tka PL e E de Sak E RA OPERE Su Mada see pe Sade 72 7 8 1 Delayed Display of Location Coordinates lllllellleleesn 72 7 8 2 GPS Not Communicating o oie ore EE PES e E sa RC RE dc 712 7 9 Windows Connectivity Problems 2 uev ree ERO EUM DRAN PEEN ERES 72 7 10 Troubleshooting MAESTRO Related Problems 0 0 0 2 eee eee 73 7 10 1 MAESTRO Does Not Connect with the Detective 173 7 11 Other Problems with the Detective 1 62 vv LR ue X EE REANAEERRE ASA EAE EC oe 73 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS 75 8 1 Connecting the Detective to a Computer voe Ree eye healer CORE RR mE 75 8 2 Quantitative Analysis of Detective Spectra in GammaVision and ISOTOPIC 76 8 3 MCB Properties in MAESTRO eese ehh e hh hee T11 8 9 LAMP ienna eel uu a a ee ite tau ety E durs o gustu e 78 Bosbd Ga oY ik eos p pa E a a ER ERE SRI E aea i 78 8 3
43. 9 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 20 While calibration is in progress Fig 13 a Time remaining readout should be dis played This interval will depend on the strength and proximity of your calibration source Adv 5 22 11 6 14 27 PM Setup Battery Time 132 min Turn Cooler OFF Calibrate Background List Nuclides Recall Spectra Nn t MI Next gt gt About Figure 11 On the Advanced Menu Tap the Calibrate Button Adv 1 27 11 3 18 53 PM Setup Battery Time 193 min 1 Place Co 60 in front of the Micro Detective 2 P Start Calibration Now Gamma Count Rate 1327 cps Restore Default Figure 12 Tap the Start Calibra tion Now Button NOTE Ifthe Time remaining readout is not displayed the calibration source is too weak or too far from the detector to complete the calibration or you may be using the wrong source Tap Abort Calibration correct the situation and restart the calibration See also the troubleshooting steps in Section 7 7 page 71 At the end of the calibration period the Use Improved Calibration button will be displayed along with the calibration and peak shape indicators for the new measurement Fig 14 The choice is yours whether to use this new calibration or not To accept it tap Use Improved Calibration Usually the proposed change in calibration is of the order of
44. Browse Option 7 64 If your files are on the SD card select the Storage Card and open the Data folder If your files are stored in the My Documents folder select the root V entry then Documents Identification Mode spectra in the SPC format have a spectrum icon with a green back ground Search Mode files in the CHN format have a spectrum icon with a gray background ANSI N42 files have the default file icon 931046G 0714 6 FILE TRANSFER TO COMPUTER 1 2 3 4 JTG E gt Computer Tripod Data Systems Nomad X Search Tripod Data Systems Nomad p Organize v Er 4 X Favorites Storage Card d 22m BE Desktop SUR 057 MB free of 972 MB RUM 183GB free of 1 83 GB d Downloads Recent Places 53 Libraries Documents 2 Music i Pictures B Videos j Computer L Local Disk C cx Operating System In E Tripod Data System Cs Gia Network 2 items Figure 74 The Detective Computer s Top Level File Structure 6 2 Windows XP Download ActiveSync v4 5 or higher from the Microsoft Download Center This is a free download When download is complete select Run This will automatically start installation Follow the wizard prompts and restart the computer If the Detective is in MCA Mode tap the Data ActiveSync option to return it to standalone identifier mode see Section 5 2 4 4 Connect the Detective s USB port t
45. File View Tools Help Sync dialog will indicate the Detective oo Be B computer is Connected Fig 76 If PRESE Det NEG DRE ActiveSync cannot connect to the unb I Detective see the troubleshooting Synchronized steps in Section 7 9 Information Type Status 6 You can now click on the Explore toolbar button in the ActiveSync dialog to open Windows Explorer and view the new connection and its menu tree Figure 76 Connection Established From the host computer the Detective im i i is displayed as My Windows Mobile Based Device in the Mobile Device folder under My Computer Fig 77 Stored search and identifica tion files will be located in the SD card s Data folder or the My Documents folder depending on the location set on the Spectra dialog see Section 5 3 3 3 These locations are indicated by arrows in Fig 77 66 931046G 0714 B My Windows Mobile Based Device File Edit View Favorites Tools Help Address g Name Databases O ConnMgr My Documents profiles Program Files 5D Card Temp B Windows Size 6 FILE TRANSFER TO COMPUTER DER Ax v Go Type Modified System Folder File Folder File Folder File Folder File Folder File Folder File Folder File Folder 10 object s g Mobile Device Figure 77 Exploring the Detective Computer s Files from the ActiveSync Window 6 3 When File Transfer Is Complete To return the Detective to standalone service simply disconnect it from the
46. Load the CLB file containing the proper efficiency information This can be done either with the program s Recall Calibration command or by specifying the CLB file as the calibration override in the GammaVision analysis options SDF file or the ISOTOPIC configuration 76 931046G 0714 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS e Save the SPC file with or without further analysis NOTE Ifthe CLB file is specified in the GammaVision SDF file or ISOTOPIC configura tion the An1 file generated during analysis will contain the proper calibration information but the original SPC file without the efficiency information will not change To load the efficiency information before acquiring a new spectrum with the Detective attached to a computer Load the CLB file with the Recall Calibration command or by specifying the CLB file as the calibration override in the GammaVision SDF file or ISOTOPIC configuration Acquire a new spectrum and save it in SPC format 8 3 MCB Properties in MAESTRO This section discusses the hardware setup dialogs you will see within MAESTRO when you use the MCB Properties command on the Acquire menu The MCB Properties dialog contains all of the instrument controls including acquisition presets high voltage hardware status indicators and amplifier settings To view the hardware parameters and Identification Mode reports for spectra downloaded from the Detective simpl
47. ORTEC Micro Detective Detective 200 Portable Neutron and Gamma Nuclide Identifiers User s Manual Software Version 3 1 Printed in U S A ORTEC Part No 931046 0714 Manual Revision G Advanced Measurement Technology Inc a k a ORTEC a subsidiary of AMETEK Inc WARRANTY ORTEC warrants that the items will be delivered free from defects in material or workmanship ORTEC makes no other warranties express or implied and specifically NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ORTEC s exclusive liability is limited to repairing or replacing at ORTEC s option items found by ORTEC to be defective in workmanship or materials within one year from the date of delivery ORTEC s liability on any claim of any kind including negligence loss or damages arising out of connected with or from the performance or breach thereof or from the manufacture sale delivery resale repair or use of any item or services covered by this agreement or purchase order shall in no case exceed the price allocable to the item or service furnished or any part thereof that gives rise to the claim In the event ORTEC fails to manufacture or deliver items called for in this agreement or purchase order ORTEC s exclusive liability and buyer s exclusive remedy shall be release of the buyer from the obligation to pay the purchase price In no event shall ORTEC be liable for special or consequential damages Quality Control Before
48. PGe and Neutron Detectors and Geiger M ller Tube all measurements in inches GEIGER M LLER TUBE HPGe DETECTOR Figure 89 Detective 200 Reference Points for the HPGe Detector and Geiger M ller Tube all measurements in inches 88 931046G 0714 9 SPECIFICATIONS Cooler High reliability low power Stirling cooler dual piston design 1 W nominal lift at 100 K Initial cooldown time depends on ambient temperature but at 25 C is typically 12 hours for the Micro Detective and 24 hours for the Detective 200 GPS Internal NMEA compliant WAAS capable Wireless Communication Built in IEEE 802 11b wireless hardware third party software can be used to implement this option Stored Spectrum Memory The Detective can store search and spectrum files on removable SecureDigital cards The number of spectra stored on an individual card depends on the card capacity The instrument is shipped with a 4 GB card System Conversion Gain In the default identifier mode the Detective operates at a fixed con version gain of 8192 channels In MCA Mode the conversion gain can be set from 512 to 16384 channels Shaping Time Constants e Rise time Default Mode 3 4 us fixed MCA Mode 0 8 us to 23 us e Flattop Default Mode 0 8 us width fixed MCA Mode 0 3 us to 2 4 us width Dead Time Correction Extended live time correction according to Gedcke Hale method Accuracy area of reference peak changes lt 3 from 0 to 50000 cps L
49. RO tai oO Deb war esce da tid 30 S d Montor NOU ta aia sins cain t toro Feet nn E ossa Qr are Gy AA ROR RRS GIES 31 20 SNM Search Mode ua exe aeh Chg ea dae FOR x QUE doce wx date dice EEG 32 IDENTIFICATION MESSAGES AND RADIONUCLIDE LIBRARY 35 4 1 Comments on Classify Mode Messages 000 ce eee eee ees 40 4 1 1 Comments on Found Nuclide Screen Messages llus 40 ADVANCED SETUP aeta e p titre OP Sed ru Y 4 5 1 Adyanced Setup Pag 1 x doe annie eie egy ei uad sc oe a apace ree d 41 Dede Ma i I MANENTE PHOT 4 5 2 Tumm cooler OrrOnnse oat pea e E E NE E SED EDS Re S 43 5 1 3 Calibrate Mantal 44 55 5e 2c ctor cee en E teat eee EU hee tate ieee 43 3 1 Sls Start the Calibration Lose ewe ee tae eRRERP eta ee ae eke Ree 43 5 1 3 2 Apply the Improved Calibration 03 44 74nno he eee kates skated 44 5 1 3 3 Perform a Background Measurement 2 000005 45 5 1 3 4 Restore Default 4o v oko R PRESE Go bps A UP C e e n 45 SUDO BEIGE rete a diced oed Ultima ok e asd tpe etai s Cae ml 46 5 14 Background cov ote orn Er ee tole edo mee dared ck Pedes 46 5 1 5 List Nuclides View Analysis Library 0 cece eee eee eee 46 3016 Recall Spectra su a eer eet eens ERS AM E AN ou aie tp pat i 46 5 1 6 1 Viewing Stored Specita orense ome eror Eee b T Ea ER 47 5 1 6 2 Viewing Stored Spectrum Reports llllellleleesn 47 Suis Dr RDO Lupe teme si e ames aah eee efe a
50. USB cable 67 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Intentionally blank 68 7 TROUBLESHOOTING 7 1 Error Saving SPC File Message This message is generated if you are saving spectrum and search files to SD card and 1 the card is removed during a Save operation or the storage medium is defective If you removed the card reinsert it and tap Save again If the card is defective replace it and tap Save If you do not have a replacement card you must stop the current identification session without saving in which case the spectrum will be discarded go to the Spectra dialog Section 5 3 3 3 and tap a valid location If this error occurs when saving files to the computer s My Documents folder contact your ORTEC representative or our Global Service Center 7 2 If the Detective Program Stops The Detective incorporates a computer running the Windows Mobile operating system Occa sionally the operating system will stop responding to external commands The power button is located below the display on the lower right corner of the computer s bezel Press and hold the power button until the computer shuts down and restarts this may take 10 20 seconds the mechanical cooler will continue running This will reset the operating system and automatically relaunch the Detective application 7 3 If You Drop the Detective The Detective has been designed to be a rug
51. View Found Nuclides Figure 23 View Top Lines List The energies are based on the internal nuclide library The rank is based on the confidence value for the peak When a detected energy matches an entry in the library its tentative identity is posted on this screen by peak energy in column 1 and ID confidence factor also called the Q value in column 2 The higher the confidence value the more likely that the peak is a real gamma ray peak and not background noise It should be understood however that a peak could be seen in the top lines list but the corresponding nuclide not reported as found This is because there are many other tests applied before an identity or tentative identity is chosen In general any Confidence value over 25 indicates a good peak To return to the Identification Mode tap Back Tap Save to save the current spectrum and identification results in the selected data storage location and file format s Tap Display to view the current spectrum see Section 3 2 6 28 931046G 0714 3 2 6 Display Spectrum The Display screen Fig 24 plots the gamma ray energy spectrum currently in memory This feature gives the expert spectroscopist more information about the nuclides present The expert can then make more informed decisions about the material under investigation To enter Display Mode tap the Display button See the Display Controls discussion below Tap Save to save this spectrum and identifi
52. arly suited to situations where a completely different set of objects may be presented to the instrument in Figure 27 Monitor Mode Each ID s background is color coded according to its threat status see the ID table in Chapter 4 red for threat nuclides green for innocent and in LCX Mode only yellow for suspects Each ID persists until you tap to acknowledge it this ensures that no ID goes unnoticed Once acknowledged the ID then persists until the source that triggered it is no longer being detected 3l Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Monitor Mode searches cannot be saved To collect data that can be saved and reviewed later tap Identify 3 5 SNM Search Mode The SNM Search Mode screen Fig 28 displays bar graphs showing how closely identifications of Pu U and neutron flux approach user selected detection thresholds The thresholds are set on the SNM Search Mode setup dialog under Advanced Settings Section 5 2 6 Because Ba can be used as a plutonium surrogate advanced users can enable a Ba search for training purposes and for developing a site s concept of operations If the Ba search is dis abled its bar graph is not displayed on the SNM search screen SNM searches cannot be saved To collect data that can be saved and reviewed later tap Identify Figures 28 through 31 depict a search in which Ba is detected At the st
53. art of the search the status message says Continue to search Fig 28 This message is displayed until the detection threshold for any one of the radionuclides or neutrons is crossed As a Ba source nears the confidence bar associated with it begins to lengthen and approach the threshold Fig 29 Continue to search Figure 28 SNM Search Under Way SNM 36 013 3 N 84 14 21 7 W SNM 03 13 2008 8 57 04 PM Mode Battery Time 184 min Mode Battery Time 136 min Continue to search Figure 29 Ba Threshold Almost Exceeded 931046G 0714 3 RADIATION MONITORING As the Detective comes close to the Ba source the identification for the radionuclide exceeds the threshold The confidence bar enters the shaded part of its box and the shading turns red to indicate the radionuclide has been found Fig 30 Figure 31 shows a high probability hit To verify the presence of SNM tap Identify to switch to Identification Mode SAM 03 13 2008 8 18 04 PM SNM 36 013 3 N 84 14 21 7 W Mode Storage Space 1548 Mode Battery Time 180 min U 235 Region U 235 Region Ba 133 Demo Ba 133 Demo Possible Ba 133 Position Detective to maximize reading then press Identify to confirm Possible Ba 133 Position Detective to maximize reading then press Identify to confirm Figure 31 High Confidence That Detected 133Ba Has Been Detected Use Identification Mode to Verify Figure 30 Ba Tentativ
54. being approved for shipment each ORTEC instrument must pass a stringent set of quality control tests designed to expose any flaws in materials or workmanship Permanent records of these tests are maintained for use in warranty repair and as a source of statistical information for design improvements Repair Service If it becomes necessary to return this instrument for repair it is essential that Customer Services be contacted in advance of its return so that a Return Authorization Number can be assigned to the unit Also ORTEC must be informed either in writing by telephone 865 482 4411 or by facsimile transmission 865 483 2133 of the nature of the fault of the instrument being returned and of the model serial and revision Rev on rear panel numbers Failure to do so may cause unnecessary delays in getting the unit repaired The ORTEC standard procedure requires that instruments returned for repair pass the same quality control tests that are used for new production instruments Instruments that are returned should be packed so that they will withstand normal transit handling and must be shipped PREPAID via Air Parcel Post or United Parcel Service to the designated ORTEC repair center The address label and the package should include the Return Authorization Number assigned Instruments being returned that are damaged in transit due to inadequate packing will be repaired at the sender s expense and it will be the sender s responsibility to make
55. button located on the base of the display until the shutdown warning screen counts down and the display goes dark Wait 15 20 seconds then press the On Off button to restart the computer When restart is completed the Detective program will automatically start and the unit will be ready for use For further assistance contact your ORTEC representative or our Global Service Center 7 6 If You Forgot the Password There is no master password Contact your ORTEC representative or our Global Service Center for assistance 7 7 Calibration Issues 7 7 1 Calibration Takes Very Long to Complete or Does Not Finish at All Make sure your calibration source corresponds to the source or peak energy selected on the calibration settings screen Section 5 2 1 If the amount of time remaining see Fig 37 is lengthy use a higher activity calibration source or position the source on the detector endcap If the calibration routine does not complete i e if it continues running beyond a few minutes tap Abort Calibration correct the situation and restart the calibration 7 7 2 The Centroid FWHM or Calibration Adjustment Value Has Changed Dramatically Since the Last Calibration This is a highly unlikely occurrence The Detective is an advanced digital design and highly stable when operating correctly If the energy calibration appears highly variable contact our Global Service Center or your ORTEC representative Routine changes of th
56. cation results and analysis data can be quickly saved in the N42 and or ORTEC SPC file for mats providing backup for the displayed result and later analysis For work in sensitive areas the spectrum display can be disabled e Monitor Mode Monitor Mode is used to identify radionuclides while moving relative to object s of interest In this mode the Detective collects and analyzes a rolling window of the eight most recent 1 second spectra making it particularly suited to situations where a completely different set of objects may be presented to the instrument in that time period An example application is an ad hoc portal monitor where packages or people pass by the instrument This mode is also useful as a search tool where the instru Measurements with portable identifiers cannot take into account the counting geometry and source shielding so the Detective does not determine the quantity of the detected nuclides 2 931046G 0714 1 INTRODUCTION ment is carried by the user in an effort to locate and identify a radioactive source IDs persist until you tap to acknowledge them this ensures none go unnoticed e Search Mode Search Mode makes it easy to find the areas of highest radionuclide activity that is places where Identification Mode should be used The display shows the total gamma ray count rate and total neutron count rate where applicable in each time period of the last 221 time periods in a rolling strip chart
57. cation results to the selected data storage location and file formats Tap Back to return to the previous dialog Because the spectrum display area is limited a modified version of scientific notation is used when labeling the Y axes for numbers greater than or equal to 10 000 The number of trailing zeros 3 RADIATION MONITORING ID Mode Elapsed Time 24 sec e Battery Time 196 min Neutron Count Rate 0 cps AY Dose Rate 0 01 mrem h Marker 640 77keV 7 Cnts e 7 fu Figure 24 Spectrum Display Mode in the number is replaced by E followed by the number of zeros Some examples 10 000 becomes 1E4 12 000 becomes 12E3 The spectrum display has a vertical marker line Its position in the spectrum in keV and the counts in the marker channel are displayed immediately below the spectrum To move the marker to a different location tap the desired position The energy and counts per channel will update correspondingly You can also tap and drag the marker left or right to a new location 3 2 6 1 Display Controls The spectrum display control buttons are just below the display You can use them to show the spectrum in different ways for better interpretation of the spectrum e Full Zoom In the expanded view the Full button restores the display to 8000 chan nels In the full view the Full button changes to Zoom and zooms the display to the last horizontal expansion before
58. ce HPGe MCA controlled by MAESTRO and other ORTEC CONNECTIONS spectro scopy applications Within approximately 3 seconds after entering MCA Mode the Detective screen changes to the display shown in Fig 78 The first time this Detective is connected to a particu lar computer for use as an MCA Windows runs a found new hardware installation sequence If asked for the location of the Detective driver select the automatically locate the driver option answer any remaining prompts and close the wizard Adv 3 11 08 8 13 50 PM Setup Battery Time 215 min Password GPS Port USB Port Data ActiveSync COM3 v O ync Control MCA Mode ur Figure 78 Detective Ready For Use As MCA 75 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Follow all installations for the CONNECTIONS Driver Update Kit and MAESTRO including run ning the MCB Configuration program accompanying MAESTRO to build a Master Instrument List of all ORTEC MCBs accessible to the computer To return the Detective to standalone operation simply tap the Data ActiveSync radio button NOTE MAESTRO and other ORTEC applications have a Lock Unlock Detector command to prevent unauthorized users from changing detector settings starting and stopping data acquisition and clearing the detector memory This locking command functions separ ately from the Detective administrative pass word If the Detecti
59. cement kit See Chapter 10 for instructions on replacing it Note that the battery hatch is the only part of the Detective case that can be opened without voiding the warranty 10 931046G 0714 2 2 4 The Touchscreen The Detective s high resolution color touchscreen makes it easy to view data acquisition and settings Fig 4 as well as change the instrument settings To select a function tap it with your finger or the stylus When an alphanumeric input is needed a soft keyboard is displayed at the bottom of the screen see Fig 50 on page 51 2 2 5 Attaching the Carrying Strap The carrying strap Fig 5 should be installed on the top diagonal corners of the Micro Detective that is looking down on the display panel the strap should be anchored to the left front and right rear corners or vice versa If you wish to change the factory orientation use a 5 32 in hex 2 GETTING STARTED Survey 1 27 11 3 58 40 PM Mode Battery Time 198 min Y Neutron Count Rate 1 cps y y Dose Rate 0 01 mrem h y Count Rate 691 cps Status READY Cs a Figure 4 The User Interface Identify wrench to exchange positions of the strap hanger studs and the regular hex head screws Thread the strap hanger stud through the hanger bracket followed by the two spacers then insert the stud into the Micro Detective and tighten until the hanger bracket resists rotation but still turns do
60. ch Mode these data will be lost 3 2 1 Start the Identification To start an identification tap the Identify button on any screen that displays it NOTE When you start an identification the Search Monitor or SNM data in the spectrum memory are erased before the identification data are collected During data acquisition a simulated green LED flashes at the top left of the screen On units with GPS capability the top right of the screen alternates between the elapsed acquisition time for the current spectrum and the GPS coordinates In addition the neutron count rate and the gamma dose rate continually update At any time you can Pause the count and either Save the spectrum return to the Survey Mode screen or Continue counting You can save at any time during an identification and as many times as you wish The name of each saved spectrum file will include the time at which it was saved If your GPS has not received signals from GPS satellites for gt 30 days e g if it has not been in use or has been used continuously indoors it may take 10 15 minutes for the unit to update and begin displaying location information 26 931046G 0714 3 RADIATION MONITORING If counting to a Real Time Preset the elapsed time readout counts from zero to the preset Fig 21 Once the preset time has elapsed the Pause button changes to Continue At this point you can either Save the spectrum or extend the count to add more data to th
61. chscreen has large soft keys for easy use with bulky gloves and an audible gamma count rate sig nal with adjustable volume The instrument setup can be viewed and changed to ensure correct operation A password can be set to prevent changes to the setup parameters on the second and third pages of Advanced Setup dialog which is accessed by tapping the Advanced button e Battery powered operation The Micro Detective is completely self contained and portable and comes with a power adapter charger It can operate for gt 3 hours on its internal lithium ion battery Patent pending Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 The car accessory connector included allows you to use 12 V power from an auto mobile battery In addition ORTEC offers optional battery belts to extend the remote operation time The Detective 200 can operate for gt 2 hours on its internal lithium ion battery Like the Micro Detective it comes with a power adapter charger and 12 V car accessory connector and can run on an optional battery belt Checking the Detective s calibration is easy no matter where you are The Detective allows you to choose the calibration source that best suits your needs even the K naturally present in concrete or low sodium salt substitute The Detective includes global positioning GPS hardware and where GPS signals can be detected the upper right corner
62. ctra Tap Back when finished viewing spectra As noted elsewhere if you are running this background as the last step of the manual calibration routine the Identify and Monitor Modes will be disabled until the background measurement is completed and accepted 46 5 ADVANCED SETUP 931046G 0714 Adv 1 27 11 3 38 47 PM Adv 1 27 11 4 12 49 PM Setup Battery Time 196 min Setup Battery Time 193 min Gamma Rate 38 440 cps Nuclides Neutron Rate 0 075 cps GMT Rate 0 130 cps Elapsed Time 12 43 min Am 241 shielded Ar 41 As 72 As 74 At 211 Au 198 Ba 133 B Jl In A a Figure 40 Collect Background for Figure 41 View the Radionuclide At Least the Specified Minimum Library Time 5 1 6 1 Viewing Stored Spectra To display a particular spectrum file tap the filename then tap Choose The histogram will be displayed along with the filename as shown in Fig 43 The spectrum display controls are discussed on page 29 To view the associated reports see the next section 5 1 6 2 Viewing Stored Spectrum Reports Identification Mode spectrum files include both the spectrum and information on the radio nuclides found during the identification session When you display a stored spectrum you can view this information by tapping the ID button below the spectrum display This will open the ID Report screen Fig 44 Tap the listbox at the top of the screen to access the list of Found Nucli
63. des Fig 45 Suspect Nuclides for LCX Mode spectra only Fig 46 Top Lines Fig 47 and GPS Fig 48 some of the reports may contain no entries Tap Back to return to Advanced Setup 47 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 48 Adv Location not determined Setup Storage Space 25013 Choose File Data Location My Documents v Filename 2011 02 20 20 10 070 spc 2011 02 19 22 07 500 spc 2011 02 19 22 29 540 spc 2011 02 17 15 48 140 spc 2011 02 17 16 Ol 470 spc 2011 02 17 16 04 580 spc 2011 02 17 16 06 560 spc Figure 42 Spectrum Directory View File 2 20 11 4 07 50 PM Battery Time 178 min ID Report v ID Table Version 8 4 Found Industrial 6 Found Medical 2 Neutron Count Rate 0 0233 cps Total neutron counts 1 Total neutron count time 42 84 s 931046G 0714 View File Location not determined Storage Space 25015 Viewing spectrum file 2011 02 19 21 43 510 spc 10 10 10 i Marker 695 50keV 8 Cnts ES EX EN EN Figure 43 View Spectrum Tap ID to View Reports View File 2 20 11 4 08 00 PM Battery Time 178 min Found Nuclides v Co 60 Co 57 Ce 139 Cd 109 Cs 137 Y 88 Sn 113 Hg 203 Figure 44 ID Report Figure 45 Found Nuclides Report 931046G 0714 186 keV Peak Present View File Location not determined Sto
64. dr ME aE o LU EN pa Lee 50 5 2 Adya ced Set up Page 2er he arc ber ra Ede Re M CHOPPER TUR aude ae 50 5 2 1 Calibration Settings and Auto Calibration 0 0 0 0 eee ee eee 51 5 2 1 1 Setup Requirements for Successful Auto Calibration 22 9 271 2 A t Calibralon oi pei ene at Deeps del e Rd aS e 53 03 2 Background Setting S 4 452 4 S eft EY S E A E a bees wees 53 931046G 0714 TABLE OF CONTENTS 5 2 3 Identify Identification Mode Settings llle 54 5 2 3 Real lime Preset sde es pede ER RAN I ERROR IRE pe et 54 25 2 0 2 ID Display Mode cote toss aes Cote es PIS ERU WEN Sew aq se 54 5 2 3 3 LCX Low Confidence Expert ID Mode 55 5 2 3 4 Color Coded IDs 5 2 ordeo er E A ONERE tnc 55 3 2 ASCIDIA awk EE Ed dl eu edes E E ES 56 IZA be PassWord seek acr ear aestas t EE EE mel atn E ENRE 56 5 2 4 2 Allow Display of Spectrum 2335 0 etn te HERS eden pg 56 3 24 23 OPS POM ci LINDE eee UE RA TEAM UEM ER VY 57 3244 USB PODES eps ac datos Ae ter ay du s pr e ox ee Oe a 57 Data ACHVES VNC cioe eoo RR E e DR RR EA 57 Control MCA Mode 1 iple ERR Go EE Ee Es 57 5 2 5 Search Mode Settings vse cde cess cies nia RE NES OUR CE Gto ar apu ns 57 5 2 6 SNM Mode SEUTIBS is ioi era miae fin komen ded es inl a ret pu Fed Ke 57 5 2 7 Dose Rate Units and Alarms s a eee ee posee i ede de aet daw Oud 59 5 2 8 Adjust Audio Volume Micro Detective only 0 0 00 e
65. e Figure 21 spectrum as described in the next section Elapsed Time 8 of 2000 3 2 2 Extending the Count to Preset To extend the count after the first preset count interval has lapsed that is to collect more data for this measurement just tap the Continue button The extended count will start and the Continue button label will change back to Pause Acquisition will resume and will continue until you stop it by tapping Back or by pausing again The Elapsed Time readout at the top right of the screen will track the total count time NOTE Tapping Pause or Continue does not clear the spectrum Pausing simply suspends data collection When you continue subsequent data are added to the existing spectrum until you tap Back to return to the Survey Mode screen Returning to Survey Mode clears all spectrum and analysis data 3 2 3 Save Tap Save to write the current identification spectrum and results in the selected data storage location and file formats Sections 5 3 3 3 and 5 3 3 4 respectively You may save as many times as you wish during acquisition or pauses The name of each saved spectrum file will include the time at which it was saved The results are saved in the spectrum file s and can be viewed both on the Detective Sec tion 5 1 6 and with ORTEC spectroscopy applications such as MAESTRO An identifying text description can also be entered if the Ask for Sample Description feature is enabled on the Spectra dia
66. e Launcher Screen If the Launcher program does not start automatically you will instead see the Microsoft Windows Mobile desktop In this case tap Start then Launcher 8 2 GETTING STARTED This chapter covers the steps you will need to prepare the Detective for use System components and hardware overview Sections 2 1 through 2 4 Operating cautions Section 2 5 Startup and cooldown Section 2 6 User interface basics Section 2 7 Customizing the Detective software settings Section 2 8 Initial calibration check Section 2 9 and background measurement Section 2 10 2 1 Major System Components The specific components for your instrument will depend on the model and options you pur chased but typically they will include a USB cable the appropriate documentation set an ac power adapter charger and an automobile accessory adaptor for cooling and operating the unit from a 12 V battery Any options will be packaged separately and will include instructions for that option 2 2 The Micro Detective Figure 3 shows the Micro Detective s features 2 2 1 Front Panel e On Off Button Located below the touchscreen on the base of the bezel To reboot the computer press the power button The computer will restart then automatically launch the unit s software application the cooler will stay on throughout e SD Card Slot This is located on the front panel under the protective dust cover To release the cover pr
67. e order of 0 05 are to be expected This might simply be due to counting statistics in the spectrum A change much larger than this say 0 5 bears investigation Apparent changes in the reported FWHM cali bration are most likely to be statistical variations If the gain calibration adjustment value is stable the unit is functioning properly 71 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 e Iflarge changes in the calibration continue to occur contact our Global Service Center or your ORTEC representative 7 8 GPS Issues 7 8 1 Delayed Display of Location Coordinates If your GPS has not received signals from GPS satellites for gt 30 days e g if it has not been in use or has been used continuously indoors it may take 10 15 minutes for the unit to update and begin displaying location information 7 8 2 GPS Not Communicating This message see Fig 31 page 42 1s displayed if the Detective software loses contact with the GPS unit Go to the GPS Port list on the Settings screen Section 5 2 4 3 and make sure the COM2 port is selected If the not communicating message continues to be displayed after you close the Settings screen contact your ORTEC representative or our Global Service Center 7 9 Windows Connectivity Problems Typically if ActiveSync or Windows Mobile Device Center cannot find the Detective it is because the Windows connectivity software was not
68. e the spectrum file is saved e GPS location data The type of Detective series instrument used to collect the data e g Micro Detective Detective 200 Detective EX 100 Detective DX 100 The ANSI N42 file is formatted for an InstrumentType of RadionuclideIdentifier It includes the spectrum calibration sample description and identification results neutron count rate if the unit is so equipped and GPS location log 931046G 0714 1 INTRODUCTION The filename format 1s YYYY MM DD hh mm sss 1 4 2 2 Search Mode Strip Charts Search Mode data are strip charts of count rate vs elapsed time The CHN format is simpler than the SPC format and is described in the File Structure Manual The N42 file includes the sample description and a count rate log for the gamma strip chart the count rate log for the neutron strip chart if the unit is so equipped and GPS location log The filename format is YYYY MM DD HH MM SSStype When saving in the ORTEC CHN format two files are saved for each search one for the gamma count and one for the neutron count type is either G for the gamma ray chart or N for the neutron chart When saving in ANSI N42 format only one file is generated type is B indicating that it contains both the gamma ray chart and for units so equipped the neutron chart 1 4 2 3 The Background File The background file is saved in the Program Files DetectiveEX folder as background chn and is
69. earches coi eur ee ae rr oA eR EX CR SE Pu awe es 6 1 4 2 File Formats and Filenaming Conventions 0 00 eee eee eeee 6 1 4 2 1 Identification Mode Spectra 4 vues e te ee ee ree ees 6 1 4 2 2 search Mode Strip Charts sd uus bes he atat po e rni Pre em Patcr d 1 4 2 3 The Background Blei urus d we ES eere a cbe d aum 7 1 5 A Note About the Detective 200 User Interface 0 00 cee cee ee 7 1 6 The Launcher Interface for Multiple Identifier Applications J 2 GETTING STARTED 25929 adt aa ne ER Rd o RE a RA aed a e ER 9 2 1 Major System Components 5s eres tx S e URN DARREN ERR OU 9 Zoe The Micro Dele Ve cos pese Stak et ye det cte Puto iS E Ge eee fans ar E aie 9 22s T s Front Panel Gases acq et po ete r oi du dqie mere cornered 9 2 29 Rear Panel C Onnee OPS es sxe cia ea SPI REP EN APER eee Beha Sak 10 22 3 Ine Internal Battery oue iudex co 6 ETS Me Pa wee OI HN URN RE RE 10 2 2 4E MME POUClSCECO e retire ER EC RIED ER PRAE ERFES 11 2 2 5 Attaching the Carrying Strap cis ego xa ee wey s pha pu kus ER Sa seeded 11 2 3 The Det ctive 200 ag es acces e ORE E RES RUNS a EUR Irt eta afe 12 2 4 Internal vs External Power oed eh ster ica C ROGER Bot ada ED Pape m tras 13 2 5 Operating Cautions and Notes vua ox etes qoe a Se aye eke edd qoe npe d e ded 13 2 6 Startup and Cooldown uu auc ion tae ou ciuem E GR oda els KH Dee nee Ome 15 2 6 1 Connecting the Detective
70. echargeable nominal 14 4 V lithium ion battery pack Charging circuitry and battery management circuitry internal to the power adapter charger Battery lifetime 3 5 years replacement kit available from ORTEC The compartment is semi sealed and protects against penetration of dirt and moisture See Chapter 10 for instructions on replacing the battery Battery Life When HPGe detector is cold gt 3 hours at 25 C for the Micro Detective and 22 hours at 25 C for the Detective 200 lt 4 hour charge time Battery life can be extended indefinitely by the use of optional external battery belt The unit is expected to be kept running once cold Note that the internal battery charge can start the mechanical cooler but cannot fully cool a warm detector external power is required In addition an exhausted internal battery should be charged for 2 hours before the identifier is cooled using external power If the internal battery is completely exhausted but can still hold a charge see troubleshooting Section 7 4 Note that using an automobile battery to cool the detector could significantly discharge the auto battery Power Usage Greatest during cooldown 100 W While charging battery 5 A nominal Cold with fully charged battery 2 A CE Conforms to CE standards for radiated and conducted emissions susceptibility and low voltage power directives 9 2 Connectors USB e amp Rear panel Universal Serial Bus connector with dust cover for com
71. ection 7 9 63 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 4 5 6 Click on Connect without setting up your device This will prevent the host computer and Detective from automatically synchronizing 1 e exchanging files Do not modify the Program and Services transfer graphics or music to the Detective computer or change the Mobile Device Settings IMPORTANT Remember that the Detective is not to be used for purposes beyond the monitoring tasks described in the user manual and no changes should be made to the operating system settings Doing so could void your warranty Hover over File Management to expand its topics and click on Browse the contents of your device Fig 73 Windows Explorer will open and the Detective s computer will be listed as shown in Fig 74 Stored search and identification files will be located in the My Documents folder or the SD card s Data folder depending on the location set on the Spectra dialog see Section 5 3 3 3 Qj Home e Windows Mobile Device Center SE Windows Mobile Device Center Sa G Home Quick Connect Windows V A Mobile Windows Mobile I Set up your device Sa x Connect without setting up your device wf Connected wf Connected 3 Mobile Device Settings Figure 72 The Detective is Connected to the PC Figure 73 Choose the File Management
72. ely 33 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Intentionally blank 34 4 IDENTIFICATION MESSAGES AND RADIONUCLIDE LIBRARY This chapter provides the list of identifications for the v8 6 nuclide library and their categoriza tion in the ANST and Classify ID Display Modes Section 5 2 3 X Category Identification ANSI Mode Classify Mode 186 keV peak present Suspect Nuclear Uranium 2614 keV peak present Suspect Nuclear Uranium 375 414 peak present Suspect Nuclear Plutonium Ac 225 Innocent Medical Ac 227 Innocent Industrial Ag 110m Innocent Industrial Am 241 Threat Industrial Am 241 shielded Threat Nuclear Plutonium Am 241 unshielded Innocent Industrial Ar 41 Innocent Industrial As 72 Innocent Industrial As 74 Innocent Medical At 211 Innocent Other Au 198 Innocent Industrial Ba 133 Innocent Industrial Ba 140 Innocent Industrial Be 7 Innocent Industrial Beta emitter Innocent Bremsstrahlung Bi 207 Innocent Other Bi 212 Th 232 U 232 daughter Innocent Industrial Bi 214 Ra 226 daughter Innocent NORM Br 76 Innocent Other Br 76 heavily shielded Innocent Other Br 76 shielded Innocent Other Br 77 Innocent Industrial Ca 47 Innocent Industrial Cd 109 Innocent Other Cd 115 Innocent Industrial Ce 139 Innocent Medical Ce 141 Innocent Medical Ce 144 Innocent Industrial Cm 242 Innocent Industrial 35 Micro Detective and Detective 200 Portable N
73. er The icon on the lower right corner of the Survey Mode screen s Status area shows whether the Detective is operating on a fully charged battery a charging battery or external power The three respective icons are shown in Fig 10 NOTE When all power is exhausted the high voltage and cooler shut down and the detector begins to warm The Detective cannot be used again until the unit has cooled enough that the high voltage automatically switches on and the Status indicator changes back to READY 2 5 Operating Cautions and Notes e Remember that there are no user serviceable parts inside the Detective Opening the Detective except the battery hatch to replace the internal battery voids the warranty 13 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 14 The cooler and detector are shock sensitive with a maximum tolerance of 20 g so be careful not to drop the unit A shock in excess of this value will void the warranty The Detective s enclosure is sealed with polymer o rings and gaskets if all seals are in place the instrument can survive brief immersion in water However care should generally be taken to protect it from prolonged or heavy rainfall and from immersion Heat is dissipated from the cooler via the Detective baseplate therefore do not place the unit in mud loose soil or sand standing water dense grass or on thick carpet Wrap or cover the unit to keep it clean
74. er s Manual 931046G 0714 5 2 4 Settings 5 2 4 1 Password The Settings screen Fig 61 allows you to set a password to prevent unintended changes to the Advanced Setup parameters The password is case sensitive alphanumerical can include spaces and can be of any length There is no factory default To set the password tap in the Password field to open the soft keyboard Enter the password and tap Set The soft keyboard will close To put the password into effect tap Back to return to the Survey Mode screen To remove the password tap the end of the password delete all the characters by tapping the backspace soft key then tap Set Tapping the spacebar to overtype the characters does not work i e there is no overtype capability and the space is treated as any other character NOTE There is no master password so be sure to Adv Dead Time 0 0 record your password including upper Setup Storage Space 25095 case and lowercase letters If you lose this password contact your ORTEC representative or our Global Service Center for assistance LY set Allow Display of Spectrum Password 5 2 4 2 Allow Display of Spectrum GPS Port USB Port This allows an administrator to hide the Display Mode Data ActiveSync by locking the spectrum display When the display is Control MCA Mode locked none of the Display buttons will be shown on the dialogs To lock the display tap the checkbox
75. es will be stored choosing the dose rate units to be displayed determining the frequency of auto calibration configuring the SNM search dwell time and quality factor customizing the dose alarm sensitivity and adjusting the scroll rate for the Search Mode strip chart emulation IMPORTANT You can set a password to limit access to the second and third pages of the Advanced menu see Section 5 2 4 1 for instructions Chapter 6 provides instructions on downloading spectrum files to a computer Chapter 8 gives detailed information on connecting the Detective to a computer and using it as a high performance benchtop multichannel buffer MCB with MAESTRO or other ORTEC spectroscopy applications 3 1 Survey Count Rate Dose Rate Mode In Survey Mode Fig 17 the Detective behaves as a passive monitor showing the current gamma count and dose rate neutron count rate for units so equipped instrument status detec tor dead time available disk storage space and battery charge time and date and GPS coordinates The three rate indicators show the count rate or dose as both a value and a bar graph The color of the bar changes with increasing rate The lowest rate is green then yellow then red The y gamma Count Rate bar changes to yellow at 6300 counts per second cps and red at 13300 cps At 20 000 cps the red bar begins flashing These various states are illustrated in 23 Micro Detective and Detective 200 Portable
76. ess and rotate by a quarter turn the two captured bayonet mount screws The SD slot is keyed so the memory card can only be inserted in one orientation Insert the card and close the protective cover NOTE We strongly recommend that the dust cover be fastened in place at all times to protect the card slots from moisture and particulates Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Touchscreen SD card slot J under dust cover Stylus keeper magnetic Rear panel HPGe detector endcap On Off button Figure 3 Micro Detective Features 2 2 2 Rear Panel Connectors e INPUT POWER Supplies external power for operating the Micro Detective and recharging the internal battery e USB port amp amp amp Used to connect the Micro Detective s microprocessor to a com puter to retrieve stored spectra with the Data ActiveSync option and to connect to the Micro Detective s MCA board with the Control MCA Mode option e Headphone jack C For audio dose and count rate warning signals The speaker volume can be adjusted as described in Section 5 2 8 Each connector includes a dust cover Keep them closed when using the instrument outdoors or where moisture or particulates might contaminate the connectors 2 2 3 The Internal Battery When the internal battery no longer holds a charge typically after 3 5 years contact ORTEC for the appropriate battery repla
77. etective does not detect the correct cali bration source it will wait for approximately Gamma Count Rate 1306 cps 2 minutes then posts an error message Tap Back to return to the Survey Mode You can either use the existing calibration or perform a manual cali bration The unit will auto calibrate at the next Restore Defautt Back scheduled interval Figure 54 Auto Calibration in Progress To interrupt auto calibration tap the Abort but ton then Back to return to Survey Mode When you return the Detective to the auto calibration function calibration will immediately restart from the beginning The unit will continue trying to calibrate until the calibration peak passes the quality test If you disconnect the instrument from the external power source during auto calibration the routine will attempt to run to completion Tap the Abort button to interrupt auto cali bration then Back to return to Survey Mode When the unit is reconnected to external power auto calibration will start at the next scheduled interval See also the calibration troubleshooting discussion in Section 7 7 page 71 5 2 2 Background Settings Use this screen to pre configure the minimum acceptable background radiation measurement time for the Background command Section 5 1 4 The instrument requires periodic measure ment of a site s background radiation to reduce false alarms on K and other naturally occurring
78. ets tab Properties for LS MCB 137 The presets can only be set when the Detective is not acquiring data dur ing acquisition the preset field back grounds are gray indicating that they RealTimefs are inactive You can use any or all of the presets at one time To disable a preset enter a value of zero If you ROl Peak cnts disable all of the presets data acqui sition will one until manually dates aio stopped Overflow Amplifier Ampliier2 AmplifieerPRO ADC High Voltage About Status Reports Presets Live Time s When more than one preset is enabled set to a non zero value Figure 87 Presets Tab the first condition met during the acquisition causes the MCB to stop This can be useful when you are analyzing samples of widely varying activity and do not know the general activity before counting For example the Live Time preset can be set so that sufficient counts can be obtained for proper calculation of the activity in the sample with the least activity But if the sample contains a large amount of this or another nuclide the dead time could be high resulting in a long counting time for the sample If you set the ROI Peak preset in addition to the Live Time preset the low level samples will be counted to the desired fixed live time while the very active samples will be counted for the ROI peak count In this circumstance the ROI Peak preset can be viewed as a safety valve The values of all
79. ged instrument and should survive reasonable levels of mechanical abuse It has been drop tested to destruction in development and is known to have a high degree of survivability to normal shock and vibration If the instrument is dropped Disconnect from any external power source disconnect any USB connection and press and hold the On Off button for approximately 20 seconds Wait 5 seconds then turn the unit back on This should reset any mechanical relays that might have been deactivated by the drop Inspect the exterior for evidence of mechanical damage or distortion e Listen to the cooler If you hear any unusual noises rattling or pinging emanating from the cooler contact your ORTEC representative or our Global Service Center 69 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Monitor the unit for the next few hours to ensure that it remains Ready indicating that the cooler and bias voltage are functioning properly calibrates successfully and correctly identifies the specified calibration source If on recalibration a large adjustment is pro posed 20 346 or more this could indicate a problem If the unit fails in one or more of these respects or if one or more hardware diagnostic settings Section 5 1 1 indicate a hardware failure contact your ORTEC representative or our Global Service Center for further assistance Remember that there are no user serviceab
80. ground acquisition Acquisition continues until you tap either Save or Cancel which returns you to the Advanced menu If the measurement is canceled before the minimum time has elapsed the software does not accept i e save and use the new background spectrum If necessary you can obtain a valid background later however the background must be performed before the unit is ready for field use See the instructions in Section 5 2 2 When you return to the Survey Mode screen the status will now indicate Ready Adv 1 27 11 3 38 47 PM Setup Battery Time 196 min Gamma Rate 38 440 cps Neutron Rate 0 075 cps GMT Rate 0 130 cps Elapsed Time 12 43 min Figure 16 Collect Background for At Least the Specified Minimum Time xxx The Detective is now ready to use 3 RADIATION MONITORING Once the Detective displays the Ready status the calibration has been checked and the back ground has been measured the instrument is ready for use This chapter tells you how to use the Survey Identification Search Monitor and SNM Modes However we also recommend the following reading Chapter 4 lists the messages the Detective displays when it identifies radionuclides Chapter 5 discusses the functions on the Advanced menu These administrator level commands allow you to set up and adjust a number of detector functions such as turning on the mechanical cooler selecting the location where spectrum fil
81. he Advanced button to display the first Advanced Setup menu page see Fig 32 page 41 and tap Turn Cooler ON Within a few seconds the cooler will activate You will most likely be able to hear and or feel the Micro Detective s cooler Typically the cooler is somewhat noisy for the first few minutes of operation then settles into a quiet hum You may not be able to hear or feel the Detective 200 s cooler The status indicator will read Status Cooling e If you wish to view the detector and hardware status tap Advanced Status Section 5 1 1 Until the detector has cooled and the HV has automatically turned on Detector Temp Cold Tip Temp and HV Volt will read ERR then they will switch to OK A warm Micro Detective typically requires 12 hours to cool to operating temperature the Detective 200 typically 24 hours When the detector reaches operating temperature the bias voltage will automatically turn on and the status indicator on the Survey Mode screen will read Status Background is invalid As noted earlier the internal battery will not charge until the detector has reached operating temperature After that the battery will typically reaches full charge in 3 4 hours NOTE Once the Detective is cooled you can turn the cooler off for a brief period e g 10 to 20 minutes without significantly warming the detector As soon as the cooler is restarted assuming the instrument has a valid calibration and background the
82. he gamma and neutron count rate meters on the Survey Search and SNM Mode screens continue to function normally Tap Back to return to the Advanced Setup dialog Adv 1 27 11 3 24 34 PM Adv 1 27 11 3 24 34 PM Setup Battery Time 196 min Setup Battery Time 196 min Place Co 60 in front of the Micro Detective 2 Start Calibration Now Place Co 60 in front of the Micro Detective 2 Start Calibration Now Centroid 1332 88 keV FWHM 1 87 keV Cal adjustment 0 03 3 Use Improved Calibration Gamma Count Rate 47 cps 4 Run a Background Restore Default Restore Default Figure 38 Apply The Calibration Figure 39 Run A New Background 5 1 3 4 Restore Default If you have changed the calibration now or at any time in the past you can restore the factory calibration settings by tapping on the Restore Default button The factory values are always available Note that this feature is typically used for troubleshooting purposes The current back ground file is destroyed so you must run a new background before the Identify and Monitor Modes will function 45 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 5 1 3 5 Back If you do not want to apply the new calibration tap Back to return to the Advanced Setup dialog However if you have run this background as the final step of calibration remember that you must run a new
83. he issue contact your ORTEC representative or our Global Service Center In the meantime if your spectrum files are stored in the instrument s My Documents folder you may wish to exit the Detective program use the computer s File Explorer program to copy the spectra to an SD card then mount the SD card in the computer and transfer the files that way 7 10 Troubleshooting MAESTRO Related Problems 7 10 1 MAESTRO Does Not Connect with the Detective If properly installed and functioning MAESTRO software or other CONNECTIONS programs cannot find and communicate with the Detective when it is connected via the USB port and being used as an MCA e Make sure the USB cable is properly connected to both the Detective and computer e Make sure USB hubs are correctly connected and functioning e Make sure the Detective is turned on the USB port setting is in MCA Mode on the Settings screen Check the Master Instrument List on the computer to ensure that the Detective EX is on the list If it is not listed manually run the MCB Configuration program from the Windows Start menu See the MAESTRO User s Manual for detailed instructions on this operation 7 11 Other Problems with the Detective Should the Detective exhibit other unusual behavior confirm that the Regional Settings in the Windows Mobile operating system are set correctly and restore them if necessary The Detec tive is designed to function with Windows Mobile set to the Eng
84. her purpose could void your warranty In addition the Detective contains no user serviceable parts Except for the battery hatch on the left side panel which can be opened when the battery requires replacement breaking the seal on the case voids your warranty The Detective should be opened only by ORTEC authorized service personnel If you have any questions about the use or maintenance of this instrument please contact your ORTEC representative or our Global Service Center first IMPORTANT The Detective is designed to function with the Regional Settings in Microsoft Windows Mobile M set to the English United States region and all of its default settings as discussed in Section 7 11 Using other than the factory default settings can cause operational problems iii iv Intentionally blank TABLE OF CONTENTS WARRANTY erasoa besan FERT ii ADDITIONAL WARRANTY STATEMENT ssseeeee hn iii Safety Instructions and Symbols sot e n I eR yen Ce RO ER Rs ix Cleans IMSMUCHONS oed o ar en Far nta itane diae benedi er ioa ne aret ix INTRODUCTION 2 cb rann a e a a eke Gott am E te No put taeda 1 IL Montone Modes respati eser PU RUE Ca ANA PLEX ae og REIN E EISE 1 1 2 Hardware Features noira or rI cui ia whe ea see E a bet ee e E ed 3 1 3 How This Manual Is Oreanized oeo ud uen eae ae aa owe E EEE AE EE EPA 4 1 4 Spectrum and Search File Storage Transfer and Viewing Lu 5 1 4 1 Saving Spectra and S
85. high and the unit fails to cool The remedy is reasonably straightforward if inconvenient a pump and bake of the instrument is required at an ORTEC service center Fortunately you can easily avoid this problem We strongly recommend that instruments used only occasionally be turned on once a month fully cooled to Ready status and allowed to run for at least 48 hours Doing this starts the ion pump and activates the internal getters ensuring that the vacuum is maintained in good condition As well as maintaining the vacuum this procedure keeps the system battery topped up and also provides peace of mind that the system will cool when required 93 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Intentionally blank 94 10 CHANGING THE INTERNAL BATTERY The typical service life of the Detective s 14 4 V lithium ion battery is 3 5 years When the internal battery no longer retains a charge it must be replaced with the appropriate ORTEC battery replacement kit This is a straightforward operation that takes just a few minutes so the detector does not significantly warm up during the procedure When connected to external power the detector will be cooled to operating temperature first then the new battery will charge typically reaching full charge within 3 4 hours For more information contact your ORTEC representative or our Global Service Center 1 If external power
86. ies for LS MCB 137 High Voltage About Status Reports Presets Amplifier PRO ADC Amplifier Amplifier 2 V Low Frequency Rejecter Figure 81 Amplifier PRO Tab Properties for LS MCB 137 High Voltage About Status Reports Presets Amplifier Amplifier2 Amplifier PRO Conversion Gain 16384 x Lower Level Disc 180 H Upper Level Disc 116382 H Real Time Live Time 32 08 31 46 Count Rate 556 Figure 82 ADC Tab The Conversion Gain sets the maximum channel number in the spectrum If set to 16384 the energy scale is divided into 16384 channels This parameter is entered in powers of 2 e g 8192 4096 2048 1024 512 The up down arrow buttons step through the valid settings The Lower Level Discriminator sets the level of the lowest amplitude pulse that will be stored PPatent pending 80 931046G 0714 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS This level establishes a lower level cutoff by channel number for ADC conversions Because of the mechanical cooler we recommend a minimum setting of 40 in addition to leaving the LFR on at all times The Upper Level Discriminator sets the level of the highest amplitude pulse that will be stored This level establishes an upper level cutoff by channel number for storage 8 3 5 High Voltage Figure 83 shows the High Voltage Properties for LS MCB 137 tab which allows you to turn the bias l fand d h Amplifier Amplifie
87. inearity Integral Nonlinearity 40 025406 over top 99 5 of spectrum measured with a mixed source Fe at 5 9 keV to Y at 1836 keV e Differential Nonlinearity lt 1 measured with a BNC pulser and ramp generator Overload Recovery At maximum gain recovers to within 2 of rated output from x1000 overload in 2 5 non overloaded pulse widths measured using our InSight Virtual Oscillo scope Note that the computer also has a CF type II CompactFlash slot However the dust cover which must be in place to prevent contaminating the card slots blocks full insertion of the CF card Ron Jenkins R W Gould and Dale Gedcke Quantitative X Ray Spectrometry New York Marcel Dekker Inc 1981 pp 266 267 89 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Pulse Pileup Rejector Automatically set threshold Pulse pair resolution typically 500 ns Low Frequency Rejector LFR Filter The digital signal processor incorporates ORTEC s exclusive LFR filter designed to reduce microphonic and low frequency periodic noise from germanium detector output signals thereby producing significant improvement in spectrum resolution The LFR is specifically beneficial in systems cooled by mechanical coolers which are known to often contribute microphonic noise to the spectrum thereby degrading spectral resolution The LFR is also capable of reducing any periodic noise signal resulting fr
88. ing indicators are live i e they continuously update to reflect current hardware conditions For the first few seconds after you open this screen the nine live indicators typically read Waiting after which they acquire their actual current values or status messages e g OK Error Waiting OFF On startup and until the detector has cooled and the HV has automatically turned on Detector Temp Cold Tip Temp and Bias Voltage read Error Once cooldown is complete and the HV automatically turns on these indicators change to OK When the cooler is switched off the Cold Tip Temp and Cooler Drive indicators read OFF The OK indicator means the parameter is within the allowed limits The Error indicator means the parameter is outside the limits and must be corrected before the Detective can be used If the Waiting indicator persists beyond a few seconds or if you receive an Error reading for any of these parameters after the nominal cooldown time has elapsed contact your ORTEC representative or our Global Service Center When all parameters are within allowed limits the Survey Mode screen displays the Ready status message 42 931046G 0714 5 ADVANCED SETUP 5 1 2 Turn Cooler Off On When the cooler is ON the button reads Turn Cooler OFF To turn the cooler off tap this button then confirm see BB Do you really want o tum Fig 35 The button title will change to Turn Cooler ON yy the cooler off Tap it to restart the cooler
89. ing the Detective To do this tap Advanced in the Survey Mode dialog then Turn Cooler OFF The unit can be shipped as soon as the cooler is turned off There is no need to wait until the detector warms up 9 5 Long Term Shutdown Storage CAUTION This instrument should be cooled and brought to operational status Status Ready for at least 48 hours every month Failure to do this may result in degraded performance or cooling system failure This instrument uses a Stirling cycle refrigerator and all metal sealed cryostat designed for long operational life The vacuum integrity inside the cryostat is maintained by getters which sca venge traces of residual material when cold and by an ion pump that operates when the instru ment is powered up These two techniques maintain the system vacuum in peak condition during normal use A good vacuum yields rapid cooldown and ensures operation at the high end of the instrument s operating temperature range Over time in any cryostat system residual contaminants can be released from the materials inside the evacuated cryostat by a process called outgassing It has become apparent that in This is not to be confused with a vacuum leak although both result in a degradation of the vacuum 92 931046G 0714 9 SPECIFICATIONS extended storage the vacuum in our mechanically cooled identifiers may degrade to the point that on trying to restart the gas load inside the cryostat is too
90. installed first before the unit was connec ted to the computer If the Windows connectivity software has not been installed when you attach the Detective to the computer for the first time the new hardware bubbles in the lower right corner of the screen will indicate that device driver installation failed e Confirm the USB cable is good If connecting via a USB hub ensure that it is correctly connected and functioning If this does not resolve the issue go to the next step In Control Panel open the Device Manager and check for an Unknown Device entry that disappears when you disconnect the Detective from the computer If such an entry exists reconnect the Detective right click on the Unknown Device select Uninstall and confirm that you wish to uninstall the instrument Disconnect the Detective from the computer e Download and install or uninstall and reinstall the ActiveSync or Windows Mobile Device Center software making sure you have downloaded the correct version restart the computer and start the connectivity program e Restart the Detective by pressing and holding the On Off button for 5 seconds until the screen goes dark and the instrument reboots When the Detective program has fully 72 931046G 0714 7 TROUBLESHOOTING reinitialized reconnect to the computer You should see one or more new hardware bubble messages indicating the Detective was successfully detected e If these steps do not resolve t
91. is available connect the Detective to the power source 2 Shut down the computer by pressing and holding the on off button for 1 3 seconds to display the power menu then tapping the Shutdown option 3 Figure 90 shows the quick release battery hatch The two release latches are located on the top edge Slide the latches up and open the hatch as shown in Fig 91 4 For older units with bolt on hatches use the supplied 3 32 inch hex head wrench stored on the left side of the hatch as shown in Fig 92 to loosen the hatch s eight 8 captured screws and remove the hatch to expose the battery Figure 90 Quick Access Battery Hatch Closed 5 The end of the battery closest to the HPGe detector endcap has a pull tab Gently pull it outward as if opening a book cover or door until the battery slips off the connector termi nals at the lower rear of the compartment Figure 93 shows the pull tab on the front side of the battery and the connector terminals on the lower back edge 6 Guide the new battery onto the connector terminals and press it into place then close the hatch and slide the latches closed For older units replace the bolt on hatch and do not overtighten the screws 95 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 Figure 91 Quick Access Latches Up and Hatch Open Figure 92 Battery Hatch With Hex Head Wrench in Holder 96
92. ith no computer required However when you connect it to a computer running recent ORTEC CONNECTIONS spectro scopy applications such as MAESTRO or GammaVision you can use the it as a high perform ance HPGe spectrometer digital MCA Note that only limited hardware adjustments are allowed The Detective prevents changes to the hardware settings in MAESTRO that might affect the unit s performance as an identifier For example you cannot change amplifier gain conversion gain and other similar settings Using CONNECTIONS driver v6 09 06 or later will allow you to view the stored spectrum reports described in Section 8 3 8 The MAESTRO User s Manual contains complete instructions on software installation network protocol setup and configuration of the MCBs attached to your computer When installing MAESTRO choose the USB Based Instruments selection to install the correct driver for the Detective When you disconnect from the computer and exit its MCA Mode all previous normal operation settings including the calibration are immediately restored and the Detective is ready for normal use as a standalone identifier 8 1 Connecting the Detective to a Computer From the Advanced Setup menu tap Settings then tap the Control MCA Mode radio button This sets the Detective s USB port so the instrument s MCA can be connected to a host computer The other Detective features are disabled The Detective can then be used as a high performan
93. ive s My Documents folder Windows 7 Download and install Windows Mobile Device Center as described in Section 6 1 then copy files via Windows Explorer Windows XP Download and install Microsoft ActiveSync driver as described in Section 6 2 then copy files via Windows Explorer IMPORTANT Before connecting the Detective to a computer for the first time install Active Sync or Windows Mobile Device Center first Otherwise the Detective may not be able to communicate properly with the computer for troubleshooting see Section 7 9 6 1 Windows 7 1 Download and install the free Windows Mobile Device Center v6 1 or higher from the Microsoft Download Center Follow the wizard prompts restart the computer then start the Windows Mobile Device Center program 2 If the Detective is in MCA Mode tap the Data ActiveSync option to return it to standalone identifier mode see Section 5 2 4 4 3 Connect the Detective s USB port to the computer If this is the first time the Detective has been connected to this computer Windows will display a series of new hardware messages indicating a mobile device e g the Detective computer has been detected and its driver installed Windows Mobile Device Center will then take several seconds to communicate with the Detective and indicate the its integrated computer is Connected Fig 72 If Windows Mobile Device Center cannot connect to the Detective see the troubleshooting steps in S
94. le parts inside the Detective and opening the case will void the warranty T 4 If the Detective Will Not Turn On Connect the Detective to an external power source it should automatically boot up turn the cooler on and start the Detective software application The unit can start the cooler using internal battery power but must be connected to an external power source to fully cool a warm detector If the internal batteries have become exhausted but can still hold a charge see the next section If the battery does not hold a charge ensure that it is properly installed If it is properly installed but still does not hold a charge it must be replaced according to the instructions in Chapter 10 7 4 1 Starting from an Exhausted Battery If the internal battery is completely exhausted Connect the Detective to external power The cooler will start automatically If the detec tor has warmed up it will be cooled to operating temperature before the battery begins recharging If the battery is completely discharged it will typically reach full charge in 3 4 hours after the detector has cooled If the cooler does not automatically restart go to the Advanced Setup menu and tap Turn Cooler On If the problem persists contact your ORTEC representative or our Global Service Center for assistance 70 931046G 0714 7 TROUBLESHOOTING 7 5 If the Display is Lost or Posts a Display Disabled Message Press and hold the On Off
95. libration adjustment Cal Adjust The calibration adjustment is the difference between the spectrum position of the calibration source s peak in the new calibration and the position of the same peak in the current calibration expressed in energy as a percentage of the actual peak energy 5 1 3 2 Apply the Improved Calibration When the calibration measurement is complete and the Use Improved Calibration button is displayed choose whether or not to use this new calibration Usually the proposed change in calibration is quite small and sometimes it is even zero If it is larger than 0 3 the cause should be investigated To use the new calibration tap Use Improved Calibration Tf the calibration fails an error message will be displayed For more detailed calibration troubleshooting see Section 7 6 44 931046G 0714 5 ADVANCED SETUP 5 1 3 3 Perform a Background Measurement If you accept the improved calibration the manual calibration routine deletes the existing back ground file Therefore the final step of the calibration process is to re measure the background as indicated in Fig 39 Remove the calibration source tap the Run a Background button then refer to the instructions in Section 5 1 4 NOTE When the previous background is no longer valid the Background Invalid message is displayed on the Survey Mode screen The Identify and Monitor buttons become inactive and the system will not post radionuclide IDs However t
96. lish United States region and its default values for decimal symbol digit grouping symbol and time and date formats as described below Using other than the factory default settings can cause operational problems To check these settings e On the third page of the Advanced Setup menu tap Exit then confirm that you wish to end the Detective program Section 5 3 2 73 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 On the Windows desktop tap the Start square in the upper left corner of the screen then tap Settings In the Settings dialog tap the System tab then select Regional Settings On the Region tab select English United States from the listbox On the Number tab choose the period for the Decimal symbol and the comma for the Digit grouping symbol On the Time tab select h mm ss tt as the Time style and the full colon as the Time separator On the Date tab use M d yy as the Short date the forward slash as the Date separator and the Long date format dddd MMMM dd yyyy Tap the upper right OK circle then the upper right X circle to return to the Windows desktop Restart the Detective as described in Section 7 2 For further assistance contact your ORTEC representative or our Global Service Center 74 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS The Detective is intended for independent standalone operation w
97. log Fig 68 page 60 To end without creating a spectrum file tap Back This immediately returns you to the Survey Mode 3 2 4 View Found Nuclides List for Classify ID Display Mode Because the Classify ID Display Mode lists categories instead of specific radioisotope names the Detective provides a screen that lists the Found Nuclides and Suspect Nuclides in LCX Mode To view the found nuclides simply tap any of the ID messages on the ID Mode screen The first tap will open the Found Nuclides report see Fig 22 Each ID will have a red yellow or green background corresponding to its threat level as described in Chapter 4 To access the Suspect Nuclides report in LCX Mode tap an ID message on the Found screen The report 27 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 screens let you Save the current spectrum and identification results to disk and Display the current spectrum Tap Back to return to the main Identification Mode screen 3 2 5 Intense View Highest Intensity Spectrum Lines Tap Intense to view the list of most intense gamma ray lines in the spectrum The most intense lines list is a continuously updating list of the 10 best peaks currently detected Fig 23 ID Mode Elapsed Time 131 sec ID Mode Elapsed Time 9 sec Battery Time 178 min e Battery Time 6 min Found mM Intense Energyle confidence Figure 22
98. munication with computer for file transfer with the Data ActiveSync setting and for use as an MCA with the Control MCA Mode setting Headphones Micro Detective only Rear panel female connector with dust cover accepts standard male headphone jack Headphone volume controllable from the touchscreen Note that the audible high dose rate alarm sounds whether or not headphones are connected to the unit This alarm is not routed through the headphones and its volume is independent of the headphone volume setting 91 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 INPUT POWER e Micro Detective Rear panel external power input with dust cover 12 17 V dc 60 W or from battery or ac power adapter charger Detective 200 Rear panel external power input with dust cover 12 17 V dc 30 W or from battery or ac power adapter charger 9 3 Computer Prerequisites In addition to completely independent standalone operation both Detective units can also be operated as a benchtop MCA in conjunction with ORTEC CONNECTIONS software such as MAESTRO by connecting them to the USB port of any computer running Microsoft Windows 8 64 or 32 bit Windows 7 Professional or Windows XP Professional SP3 9 4 Shipping the Micro Detective or Detective 200 To avoid damaging the cooler and where applicable to comply with transportation regulations be certain to turn the cooler off before shipp
99. n the password text box to open the soft keyboard Enter the password and tap OK If you entered the correct password which is case sensitive and treats spaces as characters the second Advanced Setup page will be displayed Fig 51 For more information on the Password screen including recovery from a lost password see Section 5 2 4 1 If the password was incorrect the Password invalid message will be displayed You may try to enter the password again or tap Back to return to the previous menu page If no password is set the Detective will go directly to the second Advanced Setup menu screen 50 931046G 0714 5 ADVANCED SETUP Adv Location not determined Adv GPS not communicating Setup Storage Space 25017 Setup Storage Space 25100 Q Bkg Settings Identify Enter Password Dose Alarms xj2 sj afsfej7 s 9 Tabja jw ef c tf v uf iod ed LEIJ lt lt Previous Next gt gt CAP a sal ffo hli kt ut it Shift 2 x e v b n m ff DET J deel Figure 50 Enter the Password Figure 51 Advanced Setup Second Page 5 2 1 Calibration Settings and Auto Calibration Cal Settings Fig 52 allows you to turn the auto calibration check on and off decide how often to auto calibrate and either choose a factory defined calibration source Cs or K or define up to two of your own calibration sources with the Setup feature The source selected here also determines the source used
100. nnocent Industrial Ru 103 Innocent Industrial Ru 106 Rh 106 Innocent Medical Ru 97 Innocent Industrial Sb 124 Innocent Industrial Sb 124 shielded Innocent Industrial Sb 125 Innocent Industrial Sb 127 Innocent Industrial Sc 46 Innocent Medical Se 75 Innocent Medical Sm 153 Innocent Medical Sm 153 shielded Innocent Medical Sn 113 Innocent Other Sr 82 Rb 82 Innocent Medical Sr 85 Kr 85 Innocent Industrial Sr 89 Innocent Medical Ta 182 Innocent Other Tc 96 Innocent Industrial 38 931046G 0714 Identification Tc 99m Te 132 Th 229 Th 230 Th 232 T1 200 T1 201 T1 202 T1 204 Tm 170 Tm 171 U 232 U 233 U 235 U 238 Unknown Peak Unknown Beta emitter V 48 W 187 W 188 Re 188 Xe 127 Xe 131m Xe 133 Xe 133m Xe 135 Y 88 Y 91 Yb 169 Zn 62 Zn 65 Zr 95 4 IDENTIFICATION MESSAGES AND RADIONUCLIDE LIBRARY Category ANSI Mode Classify Mode Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Threat Threat Threat Threat Threat Threat Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Innocent Medical Industrial NORM Th NORM Th NORM Th Other Medical Other Medical Medical Industrial Nuclear Uranium Nuclear Uranium Nuclear Uranium Nuclear Uranium Other Other Medical Industrial Industrial Industrial Other Medical Medical Other Other Industrial Medical Medical
101. nuclide identification If you store the spectrum files on SD cards they can be transferred directly to your computer with an SD card reader and Windows Explorer Alternatively files stored on SD card or in the computer s My Documents folder can be downloaded via the USB port to any computer running under Windows 8 or 64 or 32 bit Windows 7 via the Windows Mobile Device Center or XP Professional SP3 via ActiveSync See Chapter 6 for detailed instructions IMPORTANT Before connecting the Detective to a computer for the first time install ActiveSync or Windows Mobile Device Center first Otherwise the Detective may not be able to communicate properly with the computer Be sure to read Chapter 6 Our MAESTRO MCA Emulator Software A65 BW sold separately can be used to view the search and identification spectrum files from the Micro Detective or Detective 200 Note that the computer also has a CF type II CompactFlash slot However the dust cover which must be in place to prevent contaminating the card slots blocks full insertion of the CF card Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 MAESTRO can also be used to operate the identifier as a multichannel buffer MCB with high resolution HPGe detector and store the resulting spectra to disk as ORTEC spectrum files For more information on these operations see Chapter 8 1 4 1 Saving Spectra and Searches The curren
102. o the computer If this is the first time the Detective has been connected to this computer Windows will display a series of Found New Hardware messages indicating a mobile device has been detected The Synchronization Setup Wizard will start Follow the wizard prompts for a standard partnership On the Synchronization Options screen unmark ALL checkboxes scrolling down as needed to ensure all items have been deselected Fig 75 This will prevent the host computer and Detective from automatically exchanging files 65 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 IMPORTANT Remember that the Detective is not to be used for purposes beyond the monitoring tasks described in the user manual and no changes should be made to the operating system settings Doing so could void your warranty KS Synchronization Setup Wizard Synchronization Options Your Pocket PC is already set up to synchronize with another computer Items you select will be synchronized with all computers Information Type 25 Contacts Calendar A E mail 3 Tasks m Notes O 9 Favorites O amp Files 1 9 Media Select an information type above and click Settings to change synchronization options for that type Figure 75 Unmark All Synchronization Options 5 Continue with installation as directed Microsoft ActiveSync At the end of the wizard the Active
103. ode ANSI vs Classify enter an optional real time count preset and configure this mode s other display and analysis features Section 3 2 page 25 discusses Identify Mode in detail and provides guidance on the settings Dose rate units and alarm thresholds Section 5 2 7 page 59 discusses the default gamma and neutron count rate alarm thresholds you may set lower thresholds if you wish You can also set the displayed gamma dose rate units to mrem hr or p Sv hr Password restrict Advanced settings and or the spectrum display optional The Settings screen Section 5 2 4 1 page 56 lets you password lock the second and third Advanced menu screens to minimize unintended settings changes It also lets you block 931046G 0714 2 GETTING STARTED users without password access from viewing Identify Mode spectra and stored SPC spectra Optional Auto Calibration This feature lets you schedule automatic calibration of an instrument that is connected to external power and in proximity to an appropriate calibra tion source See Section 5 2 1 page 51 e Search Mode setup The horizontal axis in this mode can be adjusted See the Search Mode discussion in Section 3 3 SNM Mode setup Adjust the dwell time and SNM nuclide detection thresholds for this mode See the discussion in Section 3 5 2 9 Checking the Calibration Once the Detective has cooled and the Background is invalid status is displayed the next setup
104. of chan nels so the peaks appear narrower The center channel of the new display will be the marker position or channel 0 is the leftmost corner of the display or channel 8192 is the rightmost corner of the display Lin Log The Lin button changes the vertical display to linear mode and automatic vertical limits The Lin button changes to Log in the linear mode Tap Log to change the vertical scale to log mode Pause Continue If the Detective is acquiring data you can pause the data collection and resume it later Tap Pause to stop collection The button will change to Continue in the pause mode Tap Continue to resume the data collection 3 3 Search Mode y Dose Rate 0 01 mrem h lu 82b 2 Figure 25 Strip Chart Emulation With Autoscaled Y Axes the gamma ray data are scaled from 0 to 1000 30 From the Survey Mode screen tap Search The search will continue until you stop it but only the most current count rate values the newest 221 are displayed and can be saved To save the displayed search results tap Save If the Ask for Sample Description option is enabled on the Spectra setup screen see Fig 68 page 60 a soft keyboard will open so you can enter a description for this data acquisition tap Set to complete the save If saving in ORTEC CHN format two count rate strip chart files are saved for each 931046G 0714 3 RADIATION MONITORING search
105. of the screen includes the current latitude and longi tude as shown in Fig 8 on page 17 The GPS coordinates are captured and stored at the start of each identification acquisition and saved as part of SPC or N42 spectrum files They are available as one of the reports discussed in Section 5 1 6 2 The Detective is equipped with IEEE 802 11b wireless connectivity Third party software can be used to implement wireless communications see our technical note P N 932735 Before using the Detective it must be set up and cooled and the calibration checked according to the steps in Chapter 2 1 3 How This Manual Is Organized This release of the Detective software combines the operator and administrator functions into one manual Chapters 2 and 3 cover topics germane to everyday radiation monitoring tasks The remaining chapters are aimed more at administrator level users and expert spectroscopists Operator oriented chapters Chapter 1 System features spectrum storage file formats and filename conventions Chapter 2 Unpacking startup operating limits initial configuration and user inter face overview Chapter 3 Using the Detective to monitor and identify radiation sources Chapter 4 Radionuclide library Administrator oriented chapters Chapter 5 Administrator level setup features Chapter 6 Transferring survey files to a computer Chapter 7 Troubleshooting and error messages 9
106. og Fig 71 displaying the Data Setup Storage Space 49560 Location listbox and the list of spectra in the current Choose File location Select the desired data location then scroll Data Location up and down through the list of spectra Files in SPC T format are listed first in descending alphabetical order Filename followed by N42 files in descending alphabetical order ida oo oe as shown in the figure To delete a spectrum tap the 2011 07 12 14 09 320 spc name and then tap Choose You will be asked to either 2011 07 06 09 15 140 n42 confirm or cancel the deletion Tap Back when finished PETETA deleting spectra Pa PRA ar IMPORTANT There is no undo for this action Figure 71 Delete Spectrum Files 62 6 FILE TRANSFER TO COMPUTER The Detective stores Identification Mode spectra in the ORTEC SPC and ANSI N42 file formats and Search Mode spectra in the simpler CHN format ORTEC files downloaded to a computer can be viewed and analyzed with CONNECTIONS programs such as MAESTRO GammaVision and ISOTOPIC The file transfer method depends on your computer operating system and where your spectrum files are stored on the Detective Spectra stored in the SD card s Data folder The simplest method is to move the card to a computer with a memory card reader and Windows Explorer Otherwise transfer files using ActiveSync or the Windows Mobile Device Center as described below Spectra stored in the Detect
107. om surrounding electronics and equipment or ground loops Presets Multiple presets can be set within MAESTRO for any or all of the following e Real Time Stops data collection when the real time reaches this value in increments of 1 s e LiveTime Stops data collection when the live time reaches this value in increments of 1 s e ROI Integral Integral count stops data collection when the sum of all ROI channels reaches this value e ROIPeak Peak count stops data acquisition when any ROI channel reaches this value maximum value of 2 counts 4 x10 e Data Overflow Terminates acquisition when data in any channel exceeds 2 1 2 x10 counts 9 1 Electrical and Mechanical Dimensions Maximum overall dimensions including handle Ge detector endcap neutron detector and shock absorbers e Micro Detective 37 4 cm L x 16 6 cm W x 27 9 cm H 14 7 in x 5 8 in x 11 in Detective 200 42 7 cm L x 24 1 cm W x 38 7 cm H 16 8 in x 9 5 in x 15 2 in Weight e Micro Detective 6 9 kg 15 2 Ib Detective 200 21 3 kg 47 lb Patent pending 90 931046G 0714 9 SPECIFICATIONS Maximum Shock Tolerance 20 g An accelerometer inside the instrument tracks the maximum shock to which the Micro Detective or Detective 200 has been subjected and a shock in excess of 20 g will void the warranty Ambient Operating Environment 10 C to 40 C at a relative humidity lt 90 at 35 C non condensing Internal Battery R
108. orage location 2554 SER ace bd 61 file transfer to PG ua ose oh ee eh aos 63 filename formats M345 bbe SA we ee backs 61 hiding the spectrum display 56 identification SPC and N42 files 6 27 quantitative analysis s vestib ee eee bens 76 search CHN files eo REP PES 30 Stored saved SDectas oe ri Sd emen 5 ansterdo DU cs eese eed oslo ake ead ort 57 viewing stored spectra and reports 46 zoom marker scaling 29 S rvey Mod s 34 exceed se A ER E bes 1 passive monitoring 04 23 Troubleshooting n n heir DEA e 69 Windows connectivity troubleshooting lt gt joy 2 rena GO Rt 72 Windows 7 Mobile Device Center 63 INDEX XP ActiveSync v eoe e I be pe 65 Wireless communication IEEE 802 11 89 101 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Intentionally blank 102
109. pidly with position It will be different at these two detector locations NOTE The dose rate function in the Detective should not be considered as adequate for accu rate dosimetry purposes Its primary purpose is to protect the user of the Detective from high radiation fields If you must test the dose rate measurement capability with a point source especially at close range it is important to know the reference points of the instrument detectors since test proce dures such as ANSI or IAEA prescribe use of point sources at specified distances from the reference point of the instrument Figure 88 shows the reference points for the Micro Detective For the HPGe detector the reference point is the geometric center of the HPGe detector endcap disk For the GM and neutron detectors the reference point is shown in Fig 88 and is marked on the case of the instrument Figure 89 shows the reference points for the HPGe detector and GM tube note that they are not marked on the case PSubject to change without notice 87 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 GEIGER M LLER TUBE 4 37 HPGe DETECTOR rd WI Xe a 2 90 1 20 3 87 NEUTRON DETECTOR Figure 88 Micro Detective Reference Points for the H
110. presets for the currently selected MCB are shown on the Status Sidebar These values do not change as new values are entered on the Presets tab the changes take place only when you Close the Properties dialog Enter the Real Time and Live Time presets in units of seconds and fractions of a second These values are stored internally with a resolution of 20 milliseconds ms since the MCB clock incre ments by 20 ms Real time means elapsed time or clock time Live time refers to the amount of time that the MCB is available to accept another pulse 1 e is not busy and is equal to the real time minus the dead time the time the MCB is not available Enter the ROI Peak count preset value in counts With this preset condition the MCB stops counting when any ROI channel reaches this value unless there are no ROIs marked in the MCB in which case that MCB continues counting until the count is manually stopped 84 931046G 0714 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS Enter the ROI Integral preset value in counts With this preset condition the MCB stops count ing when the sum of all counts in all channels for this MCB marked with an ROI reaches this value This has no function if no ROIs are marked in the MCB Marking the Overflow checkbox terminates acquisition when data in any channel exceeds 2 1 over 2x10 counts 85 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G
111. r it cannot completely cool the detector from room temperature external power is required The transition from internal to external power is automatic and does not interfere with data collection When recharging an exhausted internal battery keep in mind that the battery does not begin charging until after the detector is cooled down to operating temperature cooldown nominally takes 12 hours for the Micro Detective and 24 hours for the Detective 200 At that point fully recharging the battery takes 3 4 hours The power adapter provides external power to simultaneously start and operate the Detective as well as charge the internal battery Other external power supplied by external battery belt or 12 V automobile battery can start cool and operate the Detective as well as charge the internal battery When connected to an external battery the Detective relies on external power until the external voltage drops below 9 V It then switches to the internal battery The instrument makes the transition smoothly and there is no effect on the energy resolution If you begin with both batteries fully charged the sum of the two battery capacities will be achieved If the external battery has its own charge indicator this can be used to determine when the changeover will occur The Detective battery monitor indicates the available capacity in the internal battery and when the switchover occurs this indicator runs down in the usual mann
112. r 2 AmplifierPRO ADC voltage off and on and monitor the High Voltage About Status Reports Presets Actual bias You cannot adjust the bias voltage nor can you change the Tergat Ji AATU en Shutdown mode which is fixed as Actual 2337 Volts Shutdown SMART SMART Polarity C 060 Figure 83 High Voltage Tab This is a reference to the Detective s SMART 1 detector technology For more information on SMART 1 see the ORTEC catalog or visit www ortec online com 81 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 8 3 6 About This tab Fig 84 displays hardware Properties for LS MCB 137 ane Hrtwate IDrormauon abeant Rue Amplifier Ampliler2 AmplfieePRO ADC Detective as well as the data Acqui High Voltage Abou Status Repots Presets sition Start Time In addition the LS MCB 137 Access field shows whether the MCB is currently locked with a password by MAESTRO Read Write indi cates the MCB is unlocked and Read E Acquisition Start Time Access Only means it is Mn See Re 05 11 18 Monday April 07 2008 Read Wiite ee Pare mi DIEM sat Firmware Revision Serial Number Acquisition Mode the end of Section 8 1 DETH 005 P22406B PHA Use the Firmware Revision field to determine the instrument type and Figure 84 About Tab firmware version This parameter is formatted DE7X nnn where Xis H for the Micro Detective or Jfor the Detecti
113. radioisotopes from building materials such as concrete The background file is saved on the computer in Program Files DetectiveEX It is stored as an ORTEC CHN spectrum file named background chn and is overwritten each time the background is updated Ideally a new back ground measurement should be made whenever the Detective is moved to a new site In addi tion a new background is required as the final step of calibration 53 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual The minimum acceptable data collection time for the background measurement is set on the Bkg Settings screen shown in Fig 55 NOTE For optimum counting statistics we strongly recommend a minimum 30 minute background acquisition the longer the better However the background settings screen also lets you set a minimum interval of 1 5 or 15 minutes 5 2 3 Identify Identification Mode Settings This dialog Fig 56 lets you set a counting preset choose to display radionuclides by category e g Industrial NORM Medical etc or by radioisotope name enable disable the expert LCX identification mode and turn color coded IDs on off 5 2 3 1 Real Time Preset To set a preset acquisition time for Identification Mode tap in the field to open the soft keyboard enter a count time from 1 second to 9999999 seconds and tap Set In preset mode the Pause Continue button allows you to extend the count For more informa
114. rage Space 25015 Suspect Nuclides v Figure 46 Suspect Nuclide Report for LCX Mode spectra only 5 ADVANCED SETUP View File Location not determined Storage Space 25015 e 122 06 37 2830 165 857 32 0116 88 04 26 5124 1173 2 25 4170 661 6 25 3610 662 45 25 0094 1332 5 23 5276 123 07121 8856 391 68 19 4495 121 6 18 4351 Figure 47 Top Spectral Lines View File 2 20 11 12 17 01 AM Battery Time 180 min es Latitude 36 0 13 0 N Longitude 84 14 21 9 W Altitude 298M Satellites 7 Dilution of Precision 2 Figure 48 GPS Report 49 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 5 1 7 About This dialog Fig 49 shows the instrument type presence or absence of neutron detector firmware and application software version numbers instru ment serial number and nuclide library version The Firmware Version prefix is DETH for the Micro Detective and DETJ for the Detective 200 Tap Back to return to the Advanced Setup menu 931046G 0714 Adv 5 22 11 6 15 03 PM Setup Battery Time 130 min Detective 200 No Neutron Detector 2012 Advanced Measurement Technology App Version 3 1 11 27229 Firmware Version DETJ 007 Serial Number D 200 2 ID Table Version 8 6 Figure 49 The About Dialog 5 2 Advanced Setup Page 2 If a password has been set the screen shown in Fig 50 will be displayed Tap i
115. rce Upper line Lower line Dead Time 79 79 o 36 0 13 3 N 84 14 21 7 W Battery Time 215 min Move Back 3 11 08 8 13 50 PM Storage Space 25176 E 56 99 ge gt P Figure 9 Too Close nid E A to High Activity Figure 8 Alternating Status Indicator Displays Source e Instrument Status Area The center of the Survey Mode screen provides brief indicator s of the unit s readiness for data acquisition The Status is either READY Fig 17 or Cooling In addition warnings such as the high gamma dose rate message are posted in this part of the screen Power Source Indicator The icon in the p lower right corner of the Status area shows i whether the Detective is operating on a fully Figure 10 Battery Charged Battery charged battery a charging battery or exter Charging Battery Discharged nal power with a fully discharged battery The running on external power three respective icons are shown in Fig 10 2 7 2 Moving Through the Menus To move through the dialogs tap the soft buttons shown on the display The functions available are shown on the buttons If a function you want is not shown it is not available from this dialog In some cases the function has been disabled in the Advanced Setup 17 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 To select a function on a dialog tap the button To return to the preceding dialog tap Back For example tapping
116. rner of the screen The Dead Time is related to the current gamma count rate and indicates the percentage of time the MCB is busy i e not available to accept another pulse NOTE When the Dead Time exceeds 70 because you are near a very high activity source whether the source is an innocent or threat nuclide the Detective is not able to process gamma radiation according to its performance requirements A red indicator in the upper right corner of the screen tells you to MOVE BACK from the source until the dead time drops below 70 so that the unit can perform as specified See Fig 9 page 17 and its associated text This release of the Detective software does not use the Live Time and Real Time fields Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Adv GPS not communicating Adv 1 27 11 4 04 37 PM Setup Storage Space 25168 Setup Battery Time 196 min Live Time 0 15 06 Live Time 0 15 14 Real Time 0 15 37 Real Time 0 15 46 Dead Time 3 49 o Dead Time 6 9 Bias Voltage OK Bias Voltage 2610 12V OK 12V 12 00 12V OK 12V 12 00 3 3V OK 3 3V 3 30 Detector Temp OK Detector Temp 116 00 Body Temp OK Body Temp 35 00 Cold Tip Temp OK Cold Tip Temp 114 00 Cooler Drive OK Cooler Drive 5 75 Ion Pump OK Ion Pump 3299 0 0 Gain Stabilizer 3 80 Gain Stabilizer 3 70 Cooler Runtime Figure 33 Status Dialog Figure 34 Detailed Status Dialog e The remain
117. roved in LCX mode the false alarm rate will increase to a level unusable for many applications Be aware that the instrument will issue approximately two false suspect threat alarms every hour while in LCX mode Therefore we recommend LCX mode only for experienced spectroscopists To enable LCX Mode mark the checkbox and click on Back A blue simulated LED 99 will be displayed in the upper left of all screens beside the screen title Figs 57 and 58 This shows you at a glance which radiation monitoring mode is currently selected Survey ID Mode Mode Figure 57 Figure 58 Figures 59 and 60 compare how suspect identifications in LCX mode are displayed in the Clas sify and ANSI ID Display Modes both screens reflect the same set of found and suspect sub stances Note that in LCX mode the Color coded IDs option is always on Found Plutonium 1 Am 241 shielded Found Industrial 2 Suspected Uranium 1 Suspected Nuclear Uranium 2 Figure 59 Suspect IDs in Classify Figure 60 Suspect IDs in ANSI Display Mode Display Mode 5 2 3 4 Color Coded IDs When this option is checkmarked on ANSI Mode nuclide IDs are displayed on a color coded background indicating their threat suspect innocent status refer to Figs 19 27 and 60 As noted in the preceding section this option is always on in LCX mode 55 Micro Detective and Detective 200 Portable Nuclide Identifiers Us
118. second page s Next gt gt button 5 3 1 Remote This screen is used by other ORTEC applications such as the Detective Mobile system 5 3 2 Exit The Exit button is used to close the Detective soft ware application and go to the computer operating system This is not normally used but could be needed from time to time A confirmation dialog is displayed before the program exits To return to the Detective program without exiting tap Cancel To restart the Detective application tap Start then locate and tap the Detective program shortcut The application executable file is located in the My Device Program Files DetectiveEX folder 5 3 3 Spectra The Spectra command opens the screen shown in Fig 68 which lets you choose sample description options the file storage location and the file save formats In addition you can delete spectrum files The top right of the screen shows the number of spectra that can be stored in the current storage location refer to Fig 8 File types and filenaming conventions are given in Section 1 4 2 To view stored SPC spectra and their associated reports use the Recall Spectra command Section 5 1 6 Stored spectra can be downloaded to a computer according to the instructions in Chapter 6 60 931046G 0714 Adv GPS not communicating Setup Storage Space 25169 Remote lt lt Previous i Figure 67 Advanced Setup Third Page Adv 06 03 2010 3 34 32 PM
119. t Identification Mode spectrum or Search Mode strip chart is stored in the unit s spectrum memory If you do not save this spectrum or search by tapping the Save button it will be lost when you exit the screen The Spectra dialog Section 5 3 3 lets you select the sample description options the file storage location and the file save format s for the spectrum and strip chart files It also lets you delete spectrum files one at a time 1 4 2 File Formats and Filenaming Conventions The ORTEC file format option saves identification spectra and search strip charts in the ORTEC SPC and CHN formats respectively The ANSI format option saves in ANSI N42 42 format which is compatible with the ANSI N42 42 2006 standard identification spectra and search strip charts are formatted for an InstrumentType of RadionuclideIdentifier and PersonalRadiationDetector respectively The Both ORTEC and ANSI option saves both file types for each measurement 1 4 2 1 Identification Mode Spectra These can be saved on the ID Mode and spectrum Display screens The SPC file contains spectrum calibration sample description and analysis results as speci fied in the ORTEC Software File Structure Manual for DOS and Windows Systems P N 753800 hereinafter called the File Structure Manual It also includes the following information For units with neutron detectors total neutron counts for each acquisition and the neutron count rate at the tim
120. tective s rear panel INPUT POWER connector Alternatively you can use the 12 V dc auto accessory adapter If using a vehicle y Count Rate 49 cps battery as a power source note that cooling the detector to operating temperature can significantly discharge the vehicle battery r y Dose Rate 0 00 mrem h Status Cooler Off Press the Detective computer s On Off button ry which is below and right of the touchscreen The search Monitor computer will boot up this can take 1 minute or more then the Detective program will start up at sw the Survey Mode home screen Note that when the program starts it will take several seconds to initialize and become responsive to button presses Until the unit is fully initialized the storage capacity readout and other indicators will not display accurate values Figure 7 The Display at Startup If the Detective program does not start automatically you will instead see the Microsoft Windows Mobile desktop In this case start the application by going to the upper left of the screen and tapping Start then Detective It will initialize at the Survey Mode screen Note the Status indicator on the display On startup it will read Status Cooler Off as shown in Fig 7 15 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 2 6 2 Turning On the Mechanical Cooler To turn the cooler on e Tap t
121. that delivers unmatched identification and detection for the needs of nuclear security Both instruments identify and classify radionuclides according to the requirements of ANSI N42 34 and other standards The radionuclide library for this release of the Micro Detective and Detective 200 is detailed in Chapter 4 e Micro Detective At 15 pounds the most portable member of the Detective instrument family can make an accurate and fast determination without the need for expert human intervention Nuclide identifications are based on the gamma ray peaks in the spectrum and on other aspects of the total spectrum Detective 200 This latest entry in the Detective family combines the software abilities of the Micro Detective with an HPGe crystal that is 2 9 times larger in area At 47 pounds two people are required to lift it Use the Detective 200 where ruggedness and sensitivity are more important than light weight for instance incident response including emergency portal monitoring public event surveys for illicit radioactive materials and configurations such as the ORTEC Detective Mobile Radiation Search System which can be deployed on aircraft road vehicles and naval vessels NOTE These instruments differ only with respect to their hardware e g the size and weight of the enclosure the HPGe crystal and mechanical cooler Therefore in the remainder of the manual the term Detective refers to both instruments except where
122. that could result in death or serious bodily harm if the safety instruction is not observed WARNING Indicates a hazard that could result in bodily harm if the safety instruction is not observed CAUTION Indicates a hazard that could result in property damage if the safety instruction is not observed In addition the following symbols may appear on the product N DANGER High Voltage N ATTENTION Refer to Manual Please read all safety instructions carefully and make sure you understand them fully before attempting to use this product Cleaning Instructions To clean the instrument exterior e Disconnect the instrument from the power source e Remove loose dust on the outside of the instrument with a lint free cloth e Remove remaining dirt with a lint free cloth dampened in a general purpose detergent and water solution Do not use abrasive cleaners e Allow the instrument to dry completely before reconnecting it to the power source ix 1 INTRODUCTION The ORTEC Micro Detective portable nuclide identifier and its larger super sensitive family member the Detective 200 transportable identifier both use a high purity germanium HPGe detector for identification using gamma ray emissions The HPGe detector is cooled by a minia ture high reliability mechanical cooler no liquid nitrogen is required The user interface is a high resolution color touch screen The result is a lightweight and rugged instrument
123. tion Mode identification SPC and N42 files 6 27 monitoring for radionuclides 25 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual InSight Mode 42s c oid uy Er BENG 79 Launcher PrOBIAII ua S SC ERU E SCR 7 8 LCX low confidence expert Mode 55 MAESTRO s eou a ne E EEDS 5 63 MCB Properties setup 77 monitor detector state of health 82 PICKS RR ahhh a ee glare leas 84 troubleshooting 5 idet EROS NE 73 NICA MOde s iude e oS ER TS 37 75 Menus NAVIGAUON a5 id espesor CEP E woes 17 Nlicro DeteettVe 234 eo a tty cheb ERIS SONUS 9 amplifier settings sad or AES 79 80 battery replacement 1 25 etis S UR 10 cattving SIE usa dieses tS ERIS bas 11 COMPONEMS sins xad do er a eneas EK ES CRUS 9 CONMECIOTS 5 5 aot eee Get ccd Ets 10 15 exhausted battery startup from 70 features illustrated iu os emer ERIS oes 10 front panel 235 5x ets bise Cr ERR tty US 9 GPS fo eich Ss ta he dob da e send 57 high voltage setup us 34e teo ER te 81 identification reports 4464 5 Les RR ex 83 Monitor hardware status 82 ON OFF DULLOIL 4 x a od emer ER SS s 9 operating cautions cider ER ES od 13 presets MM See el eee alert ae 84 shock4oleranee 1x55 2x takan ERIS CES 14 software and firmware versions 50 stat s sereen one RU DEOS Ot eal es 42 temperature and humidity specifications 14 use as conventional MCA
124. tion and an example see Section 3 2 2 5 2 3 2 ID Display Mode Choose whether to display identifications by radio isotope name ANSI or by category Classify for instance Industrial Medical NORM Th Figures 19 and 20 on page 25 compare how the same detected radionuclides are displayed in the two modes See also Chapter 4 which lists all Identification Mode 951046G 0714 Adv 1 27 11 3 26 12 PM Setup Battery Time 196 min Select the minimum time a background must run before it can be saved 1 minute Q 5 minutes Q 15 minutes e 30 minutes Note To achieve optimal measurement performance it is recommended that background measurements be acquired for a minimum of 30 minutes Figure 55 Set the Minimum Background Acquisition Time Adv Location not determined Setup Storage Space 49560 Real Time Preset 1 to 9999999 seconds inclusive or blank for no preset ID Display Mode Q Classify ANSI C LCX mode Color coded IDs Figure 56 Identification Mode Setup messages their threat suspect innocent status and Classify mode category 54 931046G 0714 5 ADVANCED SETUP 5 2 3 3 LCX Low Confidence Expert ID Mode The LCX identification mode displays suspected threat alarms and identifications at an approxi mately 30 lower confidence level than the normal mode This results in more hits on suspected threat nuclides Although detection is arguably imp
125. tor and MCA for use with MAESTRO and other CONNECTIONS applications as described in Chapter 8 In this mode all normal Detective functions are disabled When you select this option the screen appears as shown in Fig 78 on page 75 5 2 5 Search Mode Settings This dialog Fig 62 allows you to set the data Collec Adv 1 27 11 4 06 58 PM tion Time for Search Mode Search Mode tracks the Setup Battery Time 193 min total counts vs a specified period of time and presents Search Mode Collection Time the results in a strip chart emulation The total counts D in each time period are represented on the vertical scale and the time period always occupies one pixel width es ME on the display that is changing the dwell time does aeons not change the width of the lines on the strip chart Tap to select a dwell setting As soon as you choose a new setting it will go into effect 5 2 6 SNM Mode Settings Use this dialog Fig 63 to set the search acquisition Dwell Time for the SNM Search Mode Section 3 5 and the detection thresholds for Pu 239 U 235 and Figure 62 Search Time per Neutron radiation Horizontal Unit Selection 57 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 951046G 0714 Advanced users can also choose to enable and configure a detection threshold for the pluto nium surrogate Ba 133 for training and site setup purposes see the discussion in Section 3 5
126. uclide Identifiers User s Manual 931046G 0714 NS Category Identification 3 ANSI Mode Classify Mode 36 Cm 243 Innocent Industrial Cm 244 Innocent Industrial Co 55 Innocent Industrial Co 56 Innocent Other Co 56 shielded Innocent Other Co 57 Innocent Industrial Co 57 shielded Innocent Industrial Co 58 Innocent Medical Co 60 Innocent Industrial Cr 51 Innocent Other Cs 131 Innocent Medical Cs 134 Innocent Industrial Cs 137 Innocent Industrial Cu 64 Innocent Other Cu 67 Ga 67 Innocent Medical Enriched Uranium Threat Nuclear Uranium Eu 152 Innocent Other Eu 154 Innocent Other Eu 155 Innocent Other Eu 156 Innocent Other F 18 Innocent Medical Fe 59 Innocent Other Ga 64 Innocent Other Ga 64 shielded Innocent Other Ga 67 Innocent Medical Ga 67 shielded Innocent Medical Gd 153 Innocent Other Gd 159 Innocent Other Ge 68 Ga 68 Innocent Medical HEU Threat Nuclear Uranium Hf 181 Innocent Industrial Hg 203 Innocent Industrial Ho 166 Innocent Other Ho 166m Innocent Industrial Ho 166m shielded Innocent Industrial I 123 Innocent Medical 931046G 0714 Identification I 123 shielded 1 124 1 125 1 126 I 126 shielded 1 131 I 131 shielded 1 132 1 133 1 134 I 135 In 111 Ir 192 Ir 192 shielded Ir 194 shielded K 40 Kr 87 Kr 88 Kr 88 shielded La 138 La 140 Lu 172 Lu 176 Lu 177 Lu 177m Mn 52 Mn 54 Mn 56 Mo 99 Na 22 Na 24 Nb 92m Nb 94 Nb 95 Nb 96 Nb 96 shielded
127. unit typically returns to Ready status within a few seconds The cooler can be restarted at any time without harming the detector crystal regardless of whether the detector is warm partially cooled or cooled to operating temperature While the Detective cools we recommend that you familiarize yourself with the user interface and configure the instrument s software settings Until you perform the initial calibration and background Sections 2 9 and 2 10 the Identify and Monitor modes are disabled however the gamma and neutron count rate meters function as passive monitors 16 931046G 0714 2 GETTING STARTED 2 7 The User Interface 2 7 1 Instrument Status Indicators e Date Time GPS Location Dead Time Battery Status and Storage Space The top line in the upper right corner alternates between the date time latitude longitude and detector dead time The lower line switches between from the battery status charging vs time to full discharge and the number of spectra that can be stored in the currently selected storage location See Fig 8 e When close to hot gamma ray sources the HPGe detector can become so busy processing radiation pulses that its analysis algorithm does not function as designed and specified To avoid this problem when the detector dead busy time exceeds 7096 a red Move Back message is displayed in the upper right corner of the screen Fig 9 and persists until you move away from the hot sou
128. ve 200 and nnnis the firmware version In the accompanying illustration DETH 005 indicates a Micro Detective running firmware v5 You can also use the About tab to view this information for SPC format spectra downloaded from the Detective 8 3 7 Status Figure 85 shows the Status tab Ten Properties for LS MCB 137 parameters are continuously moni di it Satist Amplifier Ampliier2 Amplifier PRO ADC tore in real time Satis actory status High Voltage About Status Reports Presets is reported as OK or a numerical value A failure is reported as ERR State Of Healthiiias or a descriptive message Use the list M Gamma Dose Rate 0 05 uSv h Ge boxes to select any six parameters Detector Temperature OK to be displayed simultaneously on e Batey Voltage 15 55 Volts the Status tab You can change the 8 Battery Time Remaining 204 Min selected parameters at any time v Cooler Body Temperature OK The monitored parameters are Detector State of Health Figure 85 Status Tab reported as OK or ERR e Gamma Dose Rate reported in uS v h and indicating whether this reading was made with the detector Ge for low dose rates or the Geiger M ller tube GM for high dose 82 931046G 0714 8 USING THE DETECTIVE WITH ORTEC SPECTRUM ANALYSIS PROGRAMS rates See Gamma Dose Rate Determination page 87 for further discussion of the two dose rate meters e Detector Temperature reported as
129. ve is password locked in MAESTRO you can still use it in the field without knowing the password How ever the next time you use it in MCA Mode with MAESTRO it will still be locked 8 2 Quantitative Analysis of Detective Spectra in GammaVision and ISOTOPIC The Detective can be used to collect data for quantitative analysis either as a standalone field instrument or a benchtop MCB connected to a computer In both usage modes the data can be stored as SPC format spectrum files The SPC files can then be quantitatively analyzed on a computer using GammaVision or ISOTOPIC Note however that the Detective is not designed to store efficiency information in the SPC files it creates Therefore for quantitative determinations special attention is needed to prepare the calibration CLB file so that GammaVision or ISOTOPIC will add the efficiency information during processing To prepare this calibration file load a Detective calibration spectrum into GammaVision or ISO TOPIC Use the software application s Calibration Wizard to obtain the additional efficiency calibration keeping the existing energy calibration After the efficiency calibration is computed save the complete set of calibrations as a CLB file To add the efficiency information to an existing SPC file typically from a standalone Detective e Transfer the SPC file from the Detective to the computer see Chapter 6 e Recall the SPC file in GammaVision or ISOTOPIC
130. y move from tab to tab Click on Close when finished When setting up a data acquisition note that as you enter characters in the data entry fields the characters will be underlined until you move to another field or until 5 seconds have lapsed since a character was last entered During the time the entry is underlined no other program can modify this value NOTES The changes you make on most property tabs take place immediately There is no cancel or undo option for this dialog In MAESTRO the Download Spectra and View ZDT Corrected commands on the Acquire menu and the Smooth and Strip commands on the Calculate menu are disabled for this instrument 77 Micro Detective and Detective 200 Portable Nuclide Identifiers User s Manual 931046G 0714 8 3 1 Amplifier Figure 79 shows the Amplifier tab Properties for LS MCB 137 which displays the Coarse and Fine High Voltage About Status Reports Presets Gain and Pole Zero controls Amplifier Amplfier2 AmplfierPRO ADC Gain 1 06 Pole Z 8 3 1 1 Gain i nr H Set the amplifier coarse gain by selecting from the Coarse listbox Fine 0 5278 then adjust the Fine gain with the Coarse SEE horizontal slider bar or the edit box in the range of 0 45 to 1 00 The resulting effective gain is shown at the top of the Gain section The two controls used together cover the entire range of amplification from 0 45 to 32 Figure 79 Amplifier Tab 8 3 1
131. y replacement 2o n 10 Components eesse cai e o an So e OR AG 9 CODHOCIOIS uere pem e RR 10 12 15 exhausted battery startup from 70 features illustrated 0 12 front Panel voee bed Rho Gas vee 9 GES cs seen ea hae A NR NU US 57 high voltage setup seus 81 identification reports 04 83 Monitor hardware status 82 On Off button c lt n ce eho mene Gener dues 9 operating cautions 006 13 puc Pm 84 shock tolerance swt d Ren 14 software and firmware versions 50 S AMISSCICEN oie o es aha meee aden a 42 temperature and humidity specifications 14 use as conventional MCA 73 weight nose heavy cautions 12 Display Mod aee ec ee Rs 29 hiding the spectrum display 56 Dose and count rate limits 24 59 Dose rate detector reference points soos ea em agencies Pasa 88 Bt cC 60 File transfer to PC 1 o dawson ee ee 63 Gamma count rate meter 0 23 Gamma dose rate ec Aged owe eRe 24 dose rate units a soe ew ERES 59 rate meter display sum xS 23 setup and defaults lilius 59 GPS global positioning 4 GPS report 5 Den heated oh oes o und 49 latitude longitude indicator 23 SPeciiCalON 24 5 0 e ese Oden denier VAS 89 troubleshooting 20 000 12 Hardware status 0 00 c ee eee eee 41 Identifica

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