不同材料中子反射与屏蔽效应研究

丁雄; 孙新利; 李振; 朱芫江; 黄武瑞

doi:10.11889/j.0253-3219.2017.hjs.40.030201

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不同材料中子反射与屏蔽效应研究

低能加速器技术、射线技术及应用 | 更新时间：2021-05-19

- 不同材料中子反射与屏蔽效应研究
- Simulation of neutron reflecting and shielding property of various materials
- 核技术 2017年40卷第3期文章编号：030201
- 作者机构：
  
  1.火箭军工程大学核工程系西安 710025
  2.海军装备研究院北京 100161
- 作者简介：
  
  [ "丁雄, 男, 1993年出生, 2015年毕业于火箭军工程大学, 现为硕士研究生, 研究领域为核辐射与屏蔽效应", "DING Xiong, male, born in 1993, graduated from Rocket Force University of Engineering in 2015, master student, focusing on nuclear radiation and shielding effect" ]
  孙新利, E-mail:s_xinl@sina.com SUN Xinli, E-mail:s_xinl@sina.com
- 基金信息：
  
  国家自然科学基金(51401237)
- DOI：10.11889/j.0253-3219.2017.hjs.40.030201
  中图分类号： TL77
- 收稿日期：2016-11-15，
  
  修回日期：2016-12-22，
  
  纸质出版日期：2017-03-10
- 稿件说明：
移动端阅览
丁雄, 孙新利, 李振, 等. 不同材料中子反射与屏蔽效应研究[J]. 核技术, 2017,40(3):030201

Xiong DING, Xinli SUN, Zhen LI, et al. Simulation of neutron reflecting and shielding property of various materials[J]. Nuclear techniques, 2017, 40(3): 030201
丁雄, 孙新利, 李振, 等. 不同材料中子反射与屏蔽效应研究[J]. 核技术, 2017,40(3):030201 DOI： 10.11889/j.0253-3219.2017.hjs.40.030201.

Xiong DING, Xinli SUN, Zhen LI, et al. Simulation of neutron reflecting and shielding property of various materials[J]. Nuclear techniques, 2017, 40(3): 030201 DOI： 10.11889/j.0253-3219.2017.hjs.40.030201.

摘要

利用Monte Carlo粒子输运计算程序SuperMC对厚度1-5 cm的多种材料进行中子反射和屏蔽性能分析计算。这些材料包括金属材料铍、铅、铜、含硼钢以及

238

U和非金属材料聚乙烯、氢化锂、混凝土，中子能段选取10

-5

eV-20 MeV。结果显示，中子反射能力和屏蔽性能都会随着材料厚度而增加，但增加的幅度逐渐减小。铍和聚乙烯在中子反射和屏蔽方面性能优越，而常用来屏蔽γ射线的铅在这两方面性能都是8种材料中最差的。

238

U只在材料厚度很小时性能卓著，随着材料厚度增加，其性能便远不如大部分材料。考虑到聚乙烯的力学性能较差，在屏蔽材料的选择上有很大的限制，所以在8种材料中，铍的综合性能相对较好。

Abstract

Background

Neutron reflectivity has a great impact on the transformation of nuclear energy

so the neutron reflection performance should be considered in the neutron shielding material.

Purpose

The aim is to analyze the neutron reflection and shielding properties of several materials.

Methods

The Monte Carlo particle transportation program named SuperMC is used for calculating neutron reflecting and shielding properties of various materials with thickness of 1-5 cm. These materials include metal materials (Be

boron steel and

238

U) and non-metal materials (Polyethylene (PE)

LiH and concrete).

Results & Conclusion

The neutron reflecting and shielding properties will increase as the thickness of the materials increases

but the increasing amplitude gradually decreases. The reflecting and shielding properties of Be and PE are superior to the other six materials. Besides

the reflecting and shielding properties of Pb are the worst of eight materials

though Pb is often used as the gamma-ray shielding material. In addition

only in the condition that the material thickness is relatively small and

238

U have an outstanding performance. However

with the increase in the thickness of the material

its performance will be far worse than most other materials. Considering the mechanical properties of materials

the comprehensive properties of Be are relatively better in eight materials.

关键词

Keywords

references

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