portableGamma radioactive waste activity meter

Brief introduction

In terms of radioactivityAt the waste measurement site, many portable devices were usedelectricityRefrigerated high-purity germanium spectrometer.Expensive price, high failure rate,startslow，Not suitable for long-term on-site use.Gemili-L-7575（As shown in the picture1）Yes, it isSpecially designed for substitutionmeasureγRadioactive waste activityofPortable electrically cooled high-purity germanium spectrometer(取决于上下文，如"but"designedtallperformance、high sensitivity、Highly reliable, high-precision portablespectrometerSpectrometerconfigurationinclude:3inchLaBr3DetectorUpper computer, upper computer software, backend synchronous laptop computer, collimatorHMISoftware and backend energy spectrum measurementgiveAnalysis software and passive efficiency calibration software.Gemili-L-7575ofmajor functionas follows：

• spectrometerSeparate from the backend synchronous measurement laptop, throughComes withWIFIcommunicationThe maximum distance can reach15rice；
• HMIAdopting a large touch screen, it features waterfall chart source finding, dose rate measurement, andnuclideIdentification function，As shown in the picture2、3；
• backendgamma ray spectrometrygiveanalysisBesides softwarehavegiveUpper computer softwarecompleteIn addition to the same functions, it also includes energy spectrum analysis software and passive efficiency calibration software. Energy spectrum analysis software has heavy peaksanalysisfunction（As shown in the picture4）The passive efficiency calibration software hasCADModeling function（As shown in the picture5），Rapid measurement of radioactive activity;
• directMeasurement point source function;
• automaticGenerate measurement result report function.

IIapplication area

radioactivityWaste activity measurement.

IIIperformance index

1、detector

• 3inchLaBr3Detector;
• Multiple channels:4096road；
• Automatic StabilitySpectrum;
• Maximum Count Rate10ten thousandCPS；
• Linear energy: From30keVarrive3MeVmistakeLinear less than1%；

2, upper computer andUpper computer software

• 5.5cunEye catching screen；
• Android operationSystem;
• Waterfall diagramSource tracing of dose rate curve;
• nuclide identificationHigh sensitivity nuclide identification algorithm, when using artificial radioactive nuclidesofDose rate contribution exceeds the baseline dose rate10%At that time, in5secondRate recognition of nuclides;
• Comes withWIFI，HMIgiveThe farthest distance for synchronizing a laptop is greater than15rice；

3、Synchronize laptop and software

• main streamNotebook computer,windowsoperateSystem;
• Having andThe upper computer software has completely identical software functions;
• Having energy spectrumAnalysis function, capable of parsing20weightPeak;
• Passive efficiencyScale software, usingGammaCalibpassiveEfficiency scale software;
• Measure arbitrarilyShape source radioactivity；
• need notEfficiency scale calculation, directly measuring point source activity.

4Collimator

giveDetector shape adaptationofLead collimator, inner lining0.5mmcopper；

4、 Characteristics

• multipletAnalysis actually improves the energy resolution of the detector;
• accurateActivity measurement;
• Waterfall map sourcing;

picture3 Nuclide identification interface diagram 2 Waterfall diagram and dose rate curve interface

picture4 Stable spectrum parameter setting interface

picture5-point source radioactive activity direct measurement interface

picture6　GammaCalibPassive efficiency calibration software interface

picture7-fold peak analysis interface