γ能谱Compton抑制的MCNP模拟

吉林大学学报(理学版) ›› 2019, Vol. 57 ›› Issue (04): 947-.

γ能谱Compton抑制的MCNP模拟

刘珉强¹, 杜川华¹, 马玉刚²

1. 中国工程物理研究院电子工程研究所, 四川绵阳 621000； 2. 吉林大学物理学院, 长春 130012

收稿日期:2018-04-17 出版日期:2019-07-26 发布日期:2019-07-11
通讯作者: 马玉刚 E-mail:myg@jlu.edu.cn

MCNP Simulation of Compton Suppression in γ Energy Spectrum

LIU Minqiang¹, DU Chuanhua¹, MA Yugang²

1. Institute of Electrical Engineering, China Academy of Engineering Physics, Mianyang 621000, Sichuan Province, China； 2. College of Physics, Jilin University, Changchun 130012, China

Received:2018-04-17 Online:2019-07-26 Published:2019-07-11
Contact: MA Yugang E-mail:myg@jlu.edu.cn

摘要/Abstract

摘要： 用Monte Carlo程序(MCNP)模拟主探头外包NaI(Tl)晶体构成阱型反Compton谱仪的输出谱. 通过调整FU卡参数, 实现对外探测器中脉冲高度的筛选, 给出反Compton抑制谱和Compton电子谱, 验证MCNP的FU卡在反符合测量中的使用方法, 并分析外探测器厚度对反Compton谱的影响.

关键词: Monte Carlo模拟, Compton抑制, 外探测器厚度

Abstract: Monte Carlo program was used to simulate the output spectrum of a welltype antiCompton spectrometer with the main probe wrapped with NaI(Tl) crystal. We gave the antiCompton suppression spectrum and Compton electron spectrum by adjusting the parameters of the FU card to screen the pulse height of the external detector. The usage method of FU card
of MCNP in anticoincidence measurement was verified, and the effect of the thickness of external detector on antiCompton spectrum was analyzed.

Key words: Monte Carlo simulation, Compton suppression, thickness of external detector

中图分类号:

O571.33

刘珉强, 杜川华, 马玉刚. γ能谱Compton抑制的MCNP模拟[J]. 吉林大学学报(理学版), 2019, 57(04): 947-.

LIU Minqiang, DU Chuanhua, MA Yugang. MCNP Simulation of Compton Suppression in γ Energy Spectrum[J]. Journal of Jilin University Science Edition, 2019, 57(04): 947-.

[1]	刘珉强, 朱小锋, 杜川华. 新型3D合金屏蔽效能的MCNP模拟[J]. 吉林大学学报(理学版), 2020, 58(4): 988-991.
[2]	朱岳, 赵广义, 汪宏年. 质子对碲锌镉辐照损伤的SRIM模拟[J]. 吉林大学学报(理学版), 2018, 56(4): 973-978.
[3]	张群利，韩兆让，赵吉丽，王莉，刘凤岐. 高分子链动态行为的Monte Carlo模拟[J]. J4, 2006, 44(01): 113-117.