高纯锗探测器探测效率的MCNP模拟

J4 ›› 2010, Vol. 48 ›› Issue (05): 843-846.

高纯锗探测器探测效率的MCNP模拟

张建芳¹, 赵广义¹, 王玉德^1, 王明勇², 马玉刚¹, 张慧¹

1. 吉林大学物理学院, 长春 130012|2. 鞍山师范学院物理系, 辽宁鞍山 114005

收稿日期:2009-11-16 出版日期:2010-09-26 发布日期:2010-09-21
通讯作者: 赵广义 E-mail:zhaogy@jlu.edu.cn

MCNP Simulation of High-Purity Germanium Detector Efficiency

ZHANG Jian fang^1, ZHAO Guang yi¹, WANG Yu de¹, WANG Ming yong², MA Yu gang¹, ZHANG Hui¹

1. College of Physics, Jilin University, Changchun 130012, China;2. Department of Physics, Anshan Normal College, Anshan 114005, Liaoning Province, China

Received:2009-11-16 Online:2010-09-26 Published:2010-09-21
Contact: ZHAO Guang yi E-mail:zhaogy@jlu.edu.cn

摘要/Abstract

摘要：

利用同轴型高纯锗(HPGe)探测器测量¹⁵²Eu和¹³³Ba在15 cm处的探测效率, 调节探测器死层厚度和冷指尺寸, 利用Monte Carlo方法对同轴型HPGe探测器的全能峰效率进行模拟计算, 并将计算效率与实验效率进行比较. 结果表明, 当HPGe探测器的死层厚度为0.22 cm, 冷指半径和长度分别为0.301 cm和1.00 cm时, 模拟效率与实验效率相符. 

关键词: 高纯锗探测器, 全能峰探测效率, Monte Carlo方法, 死层厚度, 冷指尺寸

Abstract:

The experimental detection efficiency of ¹⁵²Eu and ¹³³Ba at 15 cm was measured via coaxial high-purity germanium (HPGe) detector. Then the coaxial HPGe detector peak efficiency was simulated via Monte Carlo method, to adjust detector dead layer thickness and cold\|finger size. The results show that when the HPGe detector dead layer thickness is 0.22 cm, the thickness and length of cold\|finger size are 0.301 cm and 1 cm, the simulated efficiency is consistent with the experimental efficiency.

Key words: high-purity germanium detector, peak detection efficiency, Monte Carlo method, dead layer thickness, cold-finger size

中图分类号:

O434.1

张建芳, 赵广义, 王玉德, 王明勇, 马玉刚, 张慧. 高纯锗探测器探测效率的MCNP模拟[J]. J4, 2010, 48(05): 843-846.

ZHANG Jian-Fang, DIAO An-Xi, WANG Yu-De, WANG Meng-Yong, MA Yu-Gang, ZHANG Hui-. MCNP Simulation of High-Purity Germanium Detector Efficiency[J]. J4, 2010, 48(05): 843-846.

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