Transcription of GAMMA SPECTROSCOPY - OVERVIEW
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GAMMA SPECTROSCOPY - OVERVIEW
GAMMA SPECTROSCOPY -OVERVIEWTh Idifiif GE i i1 The Identification of GAMMA Emitting Radionuclides6/1/2011 ContentsGeneralDirect GAMMA Spec Analysis of RadionuclidesNon- GAMMA Emitting RadionuclidesNon- GAMMA Emitting Radionuclides Secular EquilibriumNon- GAMMA Emitting Radionuclides Scaling FactorSpectroscopy vs. SpectrometryAdvantages of GAMMA SpecDisadvantages of GAMMA Spec2gpComponents of a GAMMA SPECTROSCOPY SystemThe Most Basic ComponentsDetector TypesTwo Functions of the DetectorMultichannel AnalyzerTwo Functions of the MCAM ajor Components of the MCAA mplifierAnalog to Digital ConvertorContentsPulse Height AnalysisGeneralThe SpectrumGeneralThe Big PictureReal SpectraResolution3 Energy CalibrationGeneralPeak CentroidEnergy Calibration CurveIdentifying Unknown GAMMA Emitting NuclidesGeneralGamma LibraryUse of ComputerCommon ProblemsContentsAppendixDead TimeGain ShiftsUpper and Lower level DiscriminatorsSingle Channel Analyzer4 General5 Radionuclides must emit GAMMA rays to be analyzed directly by GAMMA SPECTROSCOPY GAMMA rays are like fingerprints: they have specific energies that can be used to identify the radioactive GeneralDirect GAMMA Spec Analysis of Radionuclides 6gymaterial.
Jun 01, 2011 · Multichannel Analyzer • The MCA contains most of the system’s electronics. • All of the MCA components (and possibly the detector as well) might be housed in a single stand-alone unit. In some cases, this might be a portable hand-held device. 25 • In the laboratory, the memory, display and analysis
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