M-C simulation of Phoswich detector for measuring β-rays in radioactive aerosol

SUN Fali1; 2 XIA Xiaobin1 ZHANG Zhihong1; 2 Lü Xiaowen1; 2 1

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M-C simulation of Phoswich detector for measuring β-rays in radioactive aerosol

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- M-C simulation of Phoswich detector for measuring β-rays in radioactive aerosol
- NUCLEAR TECHNIQUES Vol. 34, Issue 8, (2011)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL812
- Published：01 August 2011
- 稿件说明：
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[1]孙发力,夏晓彬,张志宏,吕晓雯.用于测量放射性气溶胶β射线的Phoswich探测器的蒙特卡罗模拟[J].核技术,2011,34(08):594-598.

SUN Fali1, 2 XIA Xiaobin1 ZHANG Zhihong1, 2 Lü Xiaowen1, et al. M-C simulation of Phoswich detector for measuring β-rays in radioactive aerosol[J]. Nuclear techniques, 2011, 34(8): 594-598.
[1]孙发力,夏晓彬,张志宏,吕晓雯.用于测量放射性气溶胶β射线的Phoswich探测器的蒙特卡罗模拟[J].核技术,2011,34(08):594-598. DOI：

SUN Fali1, 2 XIA Xiaobin1 ZHANG Zhihong1, 2 Lü Xiaowen1, et al. M-C simulation of Phoswich detector for measuring β-rays in radioactive aerosol[J]. Nuclear techniques, 2011, 34(8): 594-598. DOI：

摘要

描述了用于β放射性气溶胶放射性活度测量的Phoswich探测器的蒙特卡罗模拟。Phoswich探测器由塑料闪烁体和BGO无机闪烁体组成

应用Geant4蒙特卡罗程序

对不同入射粒子在塑料闪烁体和BGO内的能量沉积与衰减特性进行了数值模拟计算

去除α射线和γ光子的影响后

得到能用于放射性气溶胶的β放射性活度测量的Phoswich探测器主要部件的结构和尺寸。

Abstract

In this study

Monte Carlo simulation was performed on a Poshwich detector for measuring radioactivity of β particles in radioactive aerosol.The detector model consists of plastic scintillator and BGO crystal

with aluminum foil in the front to stop α particles and considerations to prevent the γ-rays from affecting the β-ray detection.Code Geant4 was used to calculate the energy deposition in the scintillators and their attenuation coefficient

The size and the structure of the detector ware determined based on the simulation.

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