Study on Crystal Size and Detection Efficiency of HPGe Detector

MU Wan-jun; LI Mei; ZHONG Zheng-kun

doi:10.11804/NuclPhysRev.30.01.058

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MU Wan-jun, LI Mei, ZHONG Zheng-kun. Study on Crystal Size and Detection Efficiency of HPGe Detector[J]. Nuclear Physics Review, 2013, 30(1): 58-62. doi: 10.11804/NuclPhysRev.30.01.058

Citation:

MU Wan-jun, LI Mei, ZHONG Zheng-kun. Study on Crystal Size and Detection Efficiency of HPGe Detector[J]. Nuclear Physics Review, 2013, 30(1): 58-62. doi: 10.11804/NuclPhysRev.30.01.058

Study on Crystal Size and Detection Efficiency of HPGe Detector

doi: 10.11804/NuclPhysRev.30.01.058

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Abstract

The accurate shape of HPGe detector is needed in order to calculate its detection efficiency with Monte Carlo methods. In our calculation, the influence of the HPGe crystal size on efficiency has been investigated; the final crystal sizes were determined by comparison with experiments and were validated by the experimental efficiency obtained at several source-to-detector positions. The results show that when the crystal dimensions determined are used to calculate the detection efficiency in the energy range 122s1 332 keV, the relative deviations between simulated and most experimental results were within 5%. In addition, the relationship between detection efficiency and axial distance to detector was established.
- Monte Carlo method,
- HPGe detector,
- detection efficiency
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Crystal Size and Detection Efficiency of HPGe Detector

doi: 10.11804/NuclPhysRev.30.01.058

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Key words:

Abstract: The accurate shape of HPGe detector is needed in order to calculate its detection efficiency with Monte Carlo methods. In our calculation, the influence of the HPGe crystal size on efficiency has been investigated; the final crystal sizes were determined by comparison with experiments and were validated by the experimental efficiency obtained at several source-to-detector positions. The results show that when the crystal dimensions determined are used to calculate the detection efficiency in the energy range 122s1 332 keV, the relative deviations between simulated and most experimental results were within 5%. In addition, the relationship between detection efficiency and axial distance to detector was established.

MU Wan-jun, LI Mei, ZHONG Zheng-kun. Study on Crystal Size and Detection Efficiency of HPGe Detector[J]. Nuclear Physics Review, 2013, 30(1): 58-62. doi: 10.11804/NuclPhysRev.30.01.058

Citation:

MU Wan-jun, LI Mei, ZHONG Zheng-kun. Study on Crystal Size and Detection Efficiency of HPGe Detector[J]. Nuclear Physics Review, 2013, 30(1): 58-62. doi: 10.11804/NuclPhysRev.30.01.058