Monte Carlo simulation of energy and flux distributions of bremsstrahlung photons through scintillators

WEI Mengfu ZHANG Lianping WEI Yanbo QI Honglian WU Lunqiang

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Monte Carlo simulation of energy and flux distributions of bremsstrahlung photons through scintillators

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- Monte Carlo simulation of energy and flux distributions of bremsstrahlung photons through scintillators
- NUCLEAR TECHNIQUES Issue 7, (2004)
- 作者机构：
  
  1. 中国工程物理研究院
  2. 中国工程物理研究院,绵阳,621900
- 作者简介：
- 基金信息：
  
  中国工程物理研究院基金资项目(2000z0302)
- DOI：
  CLC： TL812
- Published：01 July 2004
- 稿件说明：
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[1]韦孟伏,张连平,魏彦波,齐红莲,吴伦强.Monte Carlo模拟韧致辐射光子穿透闪烁体的能量和通量分布[J].核技术,2004(07):551-556.

WEI Mengfu ZHANG Lianping WEI Yanbo QI Honglian WU Lunqiang. Monte Carlo simulation of energy and flux distributions of bremsstrahlung photons through scintillators[J]. Nuclear techniques, 2004, (7): 551-556.
[1]韦孟伏,张连平,魏彦波,齐红莲,吴伦强.Monte Carlo模拟韧致辐射光子穿透闪烁体的能量和通量分布[J].核技术,2004(07):551-556. DOI：

WEI Mengfu ZHANG Lianping WEI Yanbo QI Honglian WU Lunqiang. Monte Carlo simulation of energy and flux distributions of bremsstrahlung photons through scintillators[J]. Nuclear techniques, 2004, (7): 551-556. DOI：

摘要

在工业CT设计中

为了选择闪烁体的种类和几何尺寸

需要知道韧致辐射光子穿透闪烁体的能量和通量分布。根据Monte Carlo模拟光子输运过程的理论

模拟了2MeV、9MeV韧致辐射光子在NaI、CsI、CdWO4闪烁体内的输运过程

讨论了这类光子穿透闪烁体后光斑展宽问题和能量及通量的分布。研究表明

该方法可准确直观地定量分析韧致辐射光子在闪烁体内任意位置的能量和通量分布规律。

Abstract

In the design of industrial CT

the knowledge of energy and flux distributions for bremsstrahlung photons through crystals is necessary to select scintillator’s type and dimension. Based on the principle of Monte Carlo simulation of photon transport

the transport processes of 2 MeV and 9 MeV bremsstrahlung in Nal

Csl and CdWO4 scintillators have been simulated. Light spots and energy and flux distributions of bremsstrahlung have been presented.The results show that the method can accurately and visually determine both on energy and flux distributions of bremsstrahlung photons in any position in the scintillator.

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