Gamma-ray efficiency of a HPGe detector as a function of energy and geometry

被引：17
作者：
Challan, Mohsen B. [1 ,2 ]
机构：
[1] AEA, Nucl Res Ctr, Dept Nucl Phys, Cairo 13759, Egypt
[2] Majmaah Univ, Fac Educ Zulfi, Dept Phys, Al Zulfi 159422588, Saudi Arabia
来源：
APPLIED RADIATION AND ISOTOPES | 2013年 / 82卷
关键词：
HPGe detector; Efficiency; Gamma-ray sources; Spectrometry; VIRTUAL POINT-DETECTOR; SPECTRUM ANALYSIS; PEAK EFFICIENCY; CALIBRATION; DEPENDENCE;
D O I：
10.1016/j.apradiso.2013.07.010
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The concept of double points detector model approach (DPDM) is developed as a procedure to find the full energy peak efficiency of the coaxial 120 cm(3) closed hyperpure germanium (HPGe) detectors. Usually in the experimental nuclear physics work, which involves using HPGe detector for gamma-ray spectrometry, the full energy peak efficiency function must represent adequately the HPGe detector response. In the current work the gamma-ray energy in the range from 60 key to 1332 keV and gamma-ray intensity changes by changing source to detector distance from 10 mm to 800 mm. The detector was characterized using a number of point-like standard sources. The calculated efficiencies obtained by (DPDM) are in good agreement with experimental data. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：166 / 169
页数：4
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