GAMMA SPECTROSCOPY - OVERVIEW
GAMMA SPECTROSCOPY -OVERVIEWTh Idifiif GE i i1The Identification of GAMMA Emitting Radionuclides6/1/2011ContentsGeneralDire ct 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 MCAMajor Components of the MCAAmplifierAnalog to Digital ConvertorContentsPulse Height AnalysisGeneralThe SpectrumGeneralThe Big PictureReal SpectraResolution3Energy CalibrationGeneralPeak CentroidEnergy Calibration CurveIdentifying Unknown GAMMA Emitting NuclidesGeneralGamma LibraryUse of ComputerCommon ProblemsContentsAppendixDead TimeGain ShiftsUpper and Lower level DiscriminatorsSingle Channel Analyzer4General5 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 · Two “Functions” of the Detector 1. A pulse is produced for each gamma ray interacting in the detector. A pulse is a short-term change in the voltage. 22 2. The greater the energy deposited in the detector, the larger the pulse.
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