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2001•Journal of Physics D Applied PhysicsOpen access

A physically founded model of the efficiency curve in gamma-ray spectrometry

T. Vidmar, M. Korun, A. Likar, M. Lipoglavšek

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Abstract

A semi-empirical formula for the full energy peak efficiency of high-purity germanium (HPGe) detectors in the range from 4 to 3000 keV is presented. The formula is based on physically sound premises and features a very low number of free parameters, all of which are physically founded and exhibit physically viable values. The model furnishes very good fits and was successfully tested against a number of experimental efficiency curves measured with point sources on n- and p-type HPGe detectors.

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A semi-empirical formula for the full energy peak efficiency of high-purity germanium (HPGe) detectors in the range from 4 to 3000 keV is presented. The formula is based on physically sound premises and features a very low number of free parameters, all of which are physically founded and exhibit physically viable values. The model furnishes very good fits and was successfully tested against a number of experimental efficiency curves measured with point sources on n- and p-type HPGe detectors.

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Available abstract

A semi-empirical formula for the full energy peak efficiency of high-purity germanium (HPGe) detectors in the range from 4 to 3000 keV is presented. The formula is based on physically sound premises and features a very low number of free parameters, all of which are physically founded and exhibit physically viable values. The model furnishes very good fits and was successfully tested against a number of experimental efficiency curves measured with point sources on n- and p-type HPGe detectors.

Key concepts: Gamma ray spectrometry, Semiconductor detector, Germanium, Detector, Range (aeronautics), Physics, Computational physics, Mass spectrometry

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