MONTE-CARLO SIMULATION VERSUS SEMIEMPIRICAL CALCULATION OF AUTOABSORPTION FACTORS FOR SEMICONDUCTOR DETECTOR CALIBRATION IN COMPLEX GEOMETRIES

被引：27

作者：

SIMA, O

机构：

[1] Department of Physics, University of Bucharest, Bucharest, Magurele, R-76900

来源：

PROGRESS IN NUCLEAR ENERGY | 1990年 / 24卷 / 1-3期

关键词：

D O I：

10.1016/0149-1970(90)90052-7

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Monte Carlo calculations of detection efficiency for gamma ray spectrometry using Marinelli geometry are reported. An algorithm based on the moments of the photon path length through the sample is implemented and autoabsorption factors in function of linear attenuation coefficient are computed in this way. The energy dependence of these factors is investigated. Their variation with detector parameters is presented. The results are compared with semiempirical estimations and an analytical formula for the equivalent thickness of the sample is reported.

引用

页码：327 / 336

页数：10

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