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J Radiat Prot > Volume 30(3); 2005 > Article
Journal of Radiation Protection 2005;30(3):107-0.
고효율 HPGe 검출기의 동시합성효과 보정 연구
이모성;
Study on the cascade summing correction for high efficiency HPGe detector
Lee, M.S.;
ABSTRACT
Cascade summing occurs when two gamma-rays emitted in the decay of a single nucleus both deposit energy in a detector. The effect may cause systematic errors that can reach levels of more than ten percent for some radionuclides. A method for estimation of the effect of these coincidences was developed. It is based on direct computation of the effect by means of peak to total ratio measured for the place around the detector. It has been shown that the P/T ratio for the given energy in the working space around the detector may not be a constant value and must use its mean value. Some results from a peak to total calibration study in the presence of scattering materials are also given.
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