Semi-empirical method for self-absorption correction of photons with energies as low as 10 keV in environmental samples

被引：18

作者：

Hernández, F ^{[1
]}

El-Daoushy, F ^{[1
]}

机构：

[1] Uppsala Univ, Dept Phys, S-75221 Uppsala, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 484卷 / 1-3期

关键词：

self-absorption; Monte Carlo; HPGe detectors; composition; environmental samples;

D O I：

10.1016/S0168-9002(01)01996-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A semi-empirical method that allows the correction of photon self-absorption in gamma spectrometry of environmental matrices is presented. Both. photon transmittance and photopeak efficiency are calculated for energies above 10 keV for any given composition with the help of a Monte Carlo simulation especially developed for this purpose, The simulation is validated for various sample-detector geometries. Problems related to sample composition are discussed with a special focus on the lowest range of energy (13-80 keV). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：625 / 641

页数：17

共 31 条

[1] VALIDATION OF A METHOD FOR COMPUTER CALCULATION OF GERMANIUM DETECTOR EFFICIENCIES [J].