NaI(Tl)探测γ能谱的MCNP模拟

NaI(Tl)探测γ能谱的MCNP模拟

马玉刚, 周银行, 赵广义, 马纯辉, 杨比鸣

吉林大学物理学院, 长春 130021

收稿日期:2006-06-22 修回日期:1900-01-01 出版日期:2007-05-26 发布日期:2007-05-26
通讯作者: 马玉刚

MCNP Simulation of γ Spectra of NaI(Tl) Detector

MA Yu gang, ZHOU Yin hang, ZHAO Guang yi, MA Chun hui, YANG Bi ming

College of Physics, Jilin University, Changchun 130021, China

Received:2006-06-22 Revised:1900-01-01 Online:2007-05-26 Published:2007-05-26
Contact: MA Yu gang

摘要/Abstract

摘要： 利用光子和电子联合输运MCNP程序的电子脉冲计数类型的能峰展宽模拟计算NaI(Tl)探测器的γ能谱, 与实验结果符合较好. 利用能峰展宽参数计算不同能量γ射线的峰总比, 结果与实验值相符, 验证该计算方法可用于NaI(Tl)探测γ能谱的模拟. 对不同能区γ射线的能谱进行模拟, 并分析了能谱的形成过程. 

关键词: NaI(Tl)晶体, MCNP, 能峰展宽, γ射线, 峰总比

Abstract: The Monte Carlo method for Photon-Electron’s transport was used to calculate the γ spectra of NaI(Tl) detector by peak broadening of electronic pulse height tally. Then the peak-to-total ratios in the NaI(Tl)detector to various γ-ray were calculated, and the results are fit in well with the experiment data. Finallythe simulated γ spectra of different energy are explained.

Key words: NaI(Tl) crystal, MCNP, peak broadening, γ-ray, peak-to-total ratio

中图分类号:

O571

马玉刚, 周银行, 赵广义, 马纯辉, 杨比鸣. NaI(Tl)探测γ能谱的MCNP模拟[J]. J4, 2007, 45(03): 451-454.

MA Yu gang, ZHOU Yin hang, ZHAO Guang yi, MA Chun hui, YANG Bi ming. MCNP Simulation of γ Spectra of NaI(Tl) Detector[J]. J4, 2007, 45(03): 451-454.

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