Summing coincidence correction for γ-ray measurements using the HPGe detector with a low background shielding system

被引：18

作者：

He, L. -C. ^{[1
]}

Diao, L. -J. ^{[2
]}

Sun, B. -H. ^{[1
]}

Zhu, L. -H. ^{[1
]}

Zhao, J. -W. ^{[1
]}

Wang, K. ^{[1
]}

机构：

[1] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[2] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2018年 / 880卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

HPGe detector; Low background shielding system; Summing coincidence; GEANT4; MONTE-CARLO-SIMULATION; SPECTROMETRY; GEANT4;

D O I：

10.1016/j.nima.2017.09.043

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A Monte Carlo method based on the GEANT4 toolkit has been developed to correct the full-energy peak (FEP) efficiencies of a high purity germanium (HPGe) detector equipped with a low background shielding system, and moreover evaluated using summing peaks in a numerical way. It is found that the FEP efficiencies of Co-60, Ba-133 and Eu-152 can be improved up to 18% by taking the calculated true summing coincidence factors (TSCFs) correction into account. Counts of summing coincidence gamma peaks in the spectrum of Eu-152 can be well reproduced using the corrected efficiency curve within an accuracy of 3%. (c) 2017 Elsevier B.V. All rights reserved.

引用

页码：22 / 27

页数：6

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