Radiation DetectorsGAMMA SPECTROSCOPYGAMMA SPECTROSCOPYGamma spectroscopy is a radiochemistry measurement method whichdetermines the energy and count rate of gamma rays emitted byradioactive substances.EO 2.8 DESCRIBE the operation of a gamma spectrometer toinclude:a. Type of detector usedb. Multichannel analyzer operationGamma spectroscopy is a radiochemistry measurement method that determines the energy andcount rate of gamma rays emitted by radioactive substances. Gamma spectroscopy is anextremely important measurement. A detailed analysis of the gamma ray energy spectrum is usedto determine the identity and quantity of gamma emitters present in a material.The equipment used in gamma spectroscopy includes a detector, a pulse sorter (multichannelanalyzer), and associated amplifiers and data readout devices. The detector is normally a sodiumiodide (NaI) scintillation counter. Figure 27 shows a block diagram of a gamma spectrometer.Figure 27 Gamma Spectrometer Block DiagramRev. 0 Page 49 IC-06
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