Secondary particle simulation analysis of high-energy <sup>56</sup>Fe ion inject various shielding material

Mingzhu XUN; Chengfa HE; Wu LU; Qi GUO; Jing SUN; Mohan LIU; Junzhe ZENG; Xin WANG

doi:10.11889/j.0253-3219.2016.hjs.39.060201

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Secondary particle simulation analysis of high-energy ⁵⁶Fe ion inject various shielding material

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS | 更新时间：2021-05-24

- Secondary particle simulation analysis of high-energy ⁵⁶Fe ion inject various shielding material
- NUCLEAR TECHNIQUES Vol. 39, Issue 6, Article number: 060201(2016)
- 作者机构：
  
  1.新疆大学物理科学与技术学院乌鲁木齐 830046
  2.中国科学院新疆理化技术研究所乌鲁木齐 830011
  3.新疆电子信息材料与器件重点实验室乌鲁木齐 830011
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China
- DOI：10.11889/j.0253-3219.2016.hjs.39.060201
  CLC： TL99
- Received：20 February 2016，
  
  Revised：05 April 2016，
  
  Published：10 June 2016
- 稿件说明：
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Mingzhu XUN, Chengfa HE, Wu LU, et al. Secondary particle simulation analysis of high-energy ⁵⁶Fe ion inject various shielding material[J]. Nuclear techniques, 2016, 39(6): 060201
DOI：

Mingzhu XUN, Chengfa HE, Wu LU, et al. Secondary particle simulation analysis of high-energy ⁵⁶Fe ion inject various shielding material[J]. Nuclear techniques, 2016, 39(6): 060201 DOI： 10.11889/j.0253-3219.2016.hjs.39.060201.

摘要

空间辐射环境下的高能重离子入射屏蔽材料会产生大量次级粒子

为研究屏蔽材料产生的次级粒子对太空舱内辐射环境的影响

本文使用基于蒙特卡罗方法的Geant4软件模拟空间高能

Fe离子入射铝、碳、聚乙烯、水4种屏蔽材料

分析透射屏蔽体的初级粒子及由屏蔽材料产生的次级电子、次级中子、次级质子和次级γ的能谱以及水吸收体中的能量沉积和深度剂量分布。分析产生的次级重粒子类型和能量

比较4种屏蔽材料对高能Fe离子的屏蔽性能。结果表明

聚乙烯材料对高能重离子的屏蔽性能最好

但同时产生的次级重粒子的能量最大

约为铝材料产生次级重粒子能量的4倍。屏蔽体产生所有次级粒子中

次级质子和原子序数为22-26的次级重粒子贡献最大。

Abstract

Background

The heavy ion in the galaxy cosmos rays with extremely high energy can be fatal to the astronaut and electronic device in the spacecraft.

Purpose

This study aims to analyze the secondary particles produced by high energy heavy ion inject shielding materials of spacecraft.

Methods

Based on the Monte-Carlo method simulation software Geant4

1-V

#183;u

-156

Fe ion incident four kinds of shielding material aluminum

aluminum carbon

polyethylene and water with 1.35-g

#183;cm

-2

mass thickness have been studied. The energy deposition in the absorber and deep-dose distribution produced by the transmitted primary particles and secondary electrons

secondary neutrons

secondary protons and secondary gamma have been analyzed. All produced secondary heavy particles and energies from four kinds of shielding materials after injected high-energy 1-V

#183;u

-156

Fe ion have been investigated

and the shielding performance was analyzed and compared.

Results

Polyethylene material absorbs the most energy

thus preservebest shielding performance whilst majority of secondary particlesand energies are produced. The energy of secondary heavy ion is quadruple of that producedby aluminum material.

Conclusion

Amongall the secondary particles

secondary protons and secondary heavy ionswithatom number between 22 and 26 make the maximal contributions.

关键词

Keywords

references

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Secondary particle simulation analysis of high-energy 56Fe ion inject various shielding material

DOI：10.11889/j.0253-3219.2016.hjs.39.060201

摘要

Abstract

关键词

Keywords

references

Secondary particle simulation analysis of high-energy ⁵⁶Fe ion inject various shielding material