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LUDLUM MODEL 70

SPECTROMETRIC PERSONAL RADIATION

DETECTOR/IDENTIFIER

May 2021

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Summary of Contents for 70

Page 1: ...LUDLUM MODEL 70 SPECTROMETRIC PERSONAL RADIATION DETECTOR IDENTIFIER May 2021 ...

Page 2: ...Model 70 Spectrometric Personal Radiation Detector Identifier SYSTEM MANUAL May 2021 ...

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Page 4: ...anty of merchantability or fitness which extend beyond the description of the face there of If the product does not perform as warranted herein purchaser s sole remedy shall be repair or replacement at the option of Ludlum Measurements In no event will Ludlum Measurements be liable for damages lost revenue lost wages or any other incidental or consequential damages arising from the purchase use or...

Page 5: ...TEM FEATURES 2 3 QUICK START 5 4 DETAILED OPERATION GUIDE 6 4 1 CONTROL BUTTONS 6 4 2 DISPLAY CONTRAST 7 4 3 EXTERNAL AUDIO 7 4 4 SEARCH DOSE Screen 1 7 4 5 IDENTIFY Screen 2 9 4 6 SETTINGS Screen 3 12 5 0 SPECIFICATIONS 16 APPENDIX A GalaXrayWiz SOFTWARE Graphic User Interface 18 APPENDIX B NUCLIDE LIBRARIES 27 APPENDIX C MANUAL CHANGES 28 ...

Page 6: ...Spectrometric Personal Radiation Detector SPRD Radioisotope Identifier RIID ...

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Page 8: ... for leaks Search of waste sites for radioactive material Employee exposure rate and dose monitoring Radioactive source monitoring Government inspection for material compliance Identification of unknown radioactive material Regulatory control of radioactive material Classification of radioactive material for a wide variety of users Detection of illicit trafficking of nuclear materials Monitoring o...

Page 9: ...Vibration mode alarms will be activated if the dose rate exceeds the defined threshold 2 Identify Mode Nuclide Identification In this mode the Model 70 accumulates spectral data from a sample and analyzes the spectrum in terms of emitted energy and net count contribution The nuclides responsible for producing the spectrum are identified by comparison to a nuclide library and presented in tabular f...

Page 10: ...tector optional Operational Buttons The Model 70 has three operating control buttons The buttons are all enclosed in one easy to clean plastic membrane All system functions are controlled by these buttons that permit easy instrument handling The buttons are specially arranged for use and to toggle between the menus and operational options with three actions START ENTER SAVE and CANCEL SET The butt...

Page 11: ... operating The second a red green LED serves as an addition to the screen to indicate a warning or an alarm condition Batteries An internal lithium ion rechargeable battery is shipped fully charged Battery Charger In the Model 70 the battery charger is external To get the battery fully charged requires 4 to 5 hours about 5 hours System Support Software Graphic User Interface GUI Support software G...

Page 12: ...ystem operation a more complete description is available in Section 4 Button Operations the three buttons on the instrument face are the only controls for the unit Basic actions are START CANCEL SET and ENTER SAVE Some operations require a short activation where SHORT less than 0 5 seconds or LONG 3 seconds Power ON OFF Press down the ENTER SAVE button for at least three seconds and the unit will ...

Page 13: ...ed on the screen so the user can observe the spectrum as time progresses At the end of accumulation period Nuclide Identification is displayed on the screen The accumulated spectrum is then automatically stored with system name composed of the date and time the spectrum was collected All spectrums are stored for later analysis when output to a PC To switch between the Search Dose screen and the Id...

Page 14: ... the unit is a special connector external audio or earphone jack shown on page 4 Users with the optional external earphone can plug it into this socket When this is done the internal audio is silenced and the audio tones are only audible through the earphone This silencing of the unit s audio is especially useful in covert scanning or when the operator does not wish to alarm anyone with sudden aud...

Page 15: ...y watch the current dose rate and the cumulative dose from Screen 1 without recording The neutron detection is shown as N C which is neutron counts in a one minute running average Saving Dose The instrument can save up to 24 hours of dose rate records To begin recording the dose time profile from Screen 1 the user can press the START Up arrow button The dose rate time profile is recorded into memo...

Page 16: ... Acq Settings Press Start to start over the dose recording until pre set time or next interruption Press Spectra Acq to get to Nuclide ID Screen 2 Press Settings to change the instrument settings To get back to original Screen 1 Search Dose the user has to get to Screen 2 Nuclide ID and then by pressing ENTER SAVE the instrument will get back to Screen 1 3 The user can save as many dose recordings...

Page 17: ... spectrum will be recorded for the pre set time as selected in the settings screen Alternatively the user may select Continuous ID select conti in the instrument Acquisition menu 2 If the user desires acquisition can be stopped at any time with the results of nuclide ID by pressing the CANCEL SET button Otherwise the nuclide ID will be displayed on completion of the spectrum acquisition time 3 Aft...

Page 18: ...s database the message of Unknown will be displayed Setting Spectrum Nuclide ID Screen If in the parameter Settings window of the Spectrum option is set to default Display ON the accumulated gamma spectrum will appear on the screen only upon a completed spectrum acquisition If the Spectrum option is set to Display Continuous the gamma spectrum accumulation progress will be displayed continuously o...

Page 19: ...E button 3 The user can save as many spectrums as the instrument memory allows by consequently pressing START and ENTER SAVE The instrument can save up to one thousand of 1024 channel spectra However it is not recommended to keep a large number of spectra in memory since it will substantially increase the downloading time onto a PC 4 6 SETTINGS Screen 3 The settings screen is used so the users can...

Page 20: ...ions available for the specific parameter press ENTER SAVE once the selected parameter has been highlighted A list of optional values for the parameter in question is displayed as shown in the figure above 3 The user can navigate through the list of values by pressing the up or down arrows until the desired value has been highlighted 4 When the desired value has been highlighted press ENTER SAVE t...

Page 21: ...or Rem hr Acquisition user can set acquisition time for spectrum and dose rate profile Spectrum Accumulation Time Conti continuous 10s 30s 60s 100s 300s 1000s 1hr 2hr The dose record time can be set from 10 seconds to 24 hours according to the following parameters 10s 30s 60s 100s 300s 1000s 1 hr 2 hr 8 hr 12 hr 24 hr Spectra Spectrum Display ON Continuous Peak ID Threshold 2 0 3 0 4 0 5 0 6 0 7 0...

Page 22: ...OFF the instrument will project NO alarms on display This mode allows the user to investigate the radiation field without interruptions LCD regulates the brightness from 1 to 10 with default 7 Backlight Off Time 30 s 60s 120s and Never Battery showing battery voltage full battery 4 2 V and battery temperature Date Time current date and time This can be changed from PC GUI GalaxrayWiz Memory user c...

Page 23: ...xed to Channel 1023 all pulses above this level are cosmic and are accumulated and displayed in Channel 1024 ADC Offset Internally adjustable Nuclide ID Over Range Dose Rate 0 5 mSv hr DOSIMETER Energy Range 30 keV to 3 0 MeV set by the spectrometer Measuring Units Sv rem cps Gamma Dose Rate within 30 accuracy per ANSI N42 48 from 0 05 µSv h to 3 mSv h 5 µR hr to 300 mR hr Output Memory or PC CLOC...

Page 24: ... cable Audio Jack Connector audio jack PHYSICAL Dimensions L 165 mm 6 5 in W 81 mm 3 2 in H 25 mm 1 in Weight 0 25 kg 0 55 lb with battery ENVIRONMENTAL Operating Temperature Range 10 to 50 o C 14 to 122 F Storage Temperature Range 20 to 60 o C 4 to 140 F Protection Weatherproof dust and water sealed no immersing Non condensing Relative Humidity Less than 90 at 40 o C 104 F Vibration 0 5 G maximum...

Page 25: ...Flash card into the PC Select Run and Browse then navigate to the GALAXRAY Software GalaXrayWiz release version xxx disks directory where xxx is the version number Select the file setup exe and click OK Select desired install location default C GalaXrayWiz Click FINISH After some screen activity the screen should show Successful Installation Once the GalaXrayWiz Application program appears right c...

Page 26: ...r then has to click on Connect as shown in the following screenshot and the pop up window will ask the user to select an appropriate port In case of several ports the user has to select the port with the largest number and click OK Upon establishing a connection Disconnect will be highlighted By clicking on Disconnect the user can cancel the connection between the unit and the PC If a connection i...

Page 27: ... spectrum will be displayed on the screen and associated information on the right side of GUI Example nuclide ID if it was identified screen cursor position in terms of channels or energy X value and content of this channel as counts Y value In addition the maximum count over the entire spectrum is in one channel Maximum and the total sum of counts in entire spectrum Total sum with spectrum accumu...

Page 28: ...s to place the cursor on the beginning channel and then press the green arrow Start on the menu bar Pull the cursor over the desired area and at the final channel press the squared button End The ROI area gets painted as shown in the following screenshot The user can change the color by clicking on color square located in the left Properties column Select color from the palette To remove ROI the u...

Page 29: ...Model 70 System Manual Ludlum Measurements Inc 22 May 2021 Radiation dose rate profile chart ...

Page 30: ...energy axis select logarithmic count scale and change the zoom The user may also disable or enable windows associated with Workpace file list Properties window and Status bar In Settings the user can Save and Recall the unit parameters and set or get the unit time clock To use it the unit has to be connected to the PC ...

Page 31: ...ction above 3 In the Communication PC GUI menu click on Configure Wi Fi and the window of Wi Fi settings will pop up as is shown in the screenshot below 4 The user has to provide the name of the Wi Fi network SSDI and set security type It is usually WPA2 most secure however it might be an open network with no security like in hotels and other public places 5 Provide network password If all network...

Page 32: ... Ludlum Measurements Inc 25 May 2021 Now the user has to unplug the unit from the USB connector and click on Connect Wi Fi The window containing the unit IP address will appear and the user has to click on OK in this window ...

Page 33: ...nnection will take several seconds with a progress window as shown below Upon completing the Wi Fi connection the message Wi Fi connection was successful will be on the GUI screen Now the user can transfer spectral and dose data through Wi Fi in the same way as with a USB cable ...

Page 34: ...e default directory with the name Galaxray By clicking on file folder name located at the top left GUI corner the user can download the previously stored data APPENDIX B NUCLIDE LIBRARIES Library Names Standard List of Nuclides Uranium 233 Uranium 235 Uranium 238 Plutonium 239 Neptunium 237 Thorium 232 Radium 226 Potassium 40 Americium 241 Barium 133 Cesium 134 Cesium 137 Cobalt 60 Cobalt 57 Europ...

Page 35: ...Model 70 System Manual Ludlum Measurements Inc 28 May 2021 APPENDIX C MANUAL CHANGES May 2021 Initial release version ...

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