Shielding design of free electron laser’s main wall based on the line-source sampling physical model

XU Yuhai; XIA Xiaobin; WANG Guanghong; XU Jiaqiang

doi:10.11889/j.0253-3219.2014.hjs.37.060101

您当前的位置：

首页 >

文章列表页 >

Shielding design of free electron laser’s main wall based on the line-source sampling physical model

更新时间：2021-03-03

- Shielding design of free electron laser’s main wall based on the line-source sampling physical model
  封面论文
- NUCLEAR TECHNIQUES Vol. 37, Issue 6, Article number: 060101(2014)
- 作者机构：
  
  中国科学院上海应用物理研究所张江园区,上海,201204
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2014.hjs.37.060101
  CLC：
- Published：04 June 2014
- 稿件说明：
移动端阅览
XU Yuhai, XIA Xiaobin, WANG Guanghong, et al. Shielding design of free electron laser’s main wall based on the line-source sampling physical model[J]. Nuclear techniques, 2014, 37(6): 060101
DOI：

XU Yuhai, XIA Xiaobin, WANG Guanghong, et al. Shielding design of free electron laser’s main wall based on the line-source sampling physical model[J]. Nuclear techniques, 2014, 37(6): 060101 DOI： 10.11889/j.0253-3219.2014.hjs.37.060101.

摘要

在建的大连自由电子激光(Dalian Coherent Light Source

DCLS)是我国第一个开工建设的四代光源，也将是全球唯一可调波极紫外自由电子激光器。本文采用蒙特卡罗程序FLUKA，建立了电子束流线源均匀模型（均匀电子固定角度发射），对DCLS注入器段的主体墙厚度做了屏蔽设计，计算中引入方差减小技巧，以降低计算结果的统计误差；并将基于束流线源模型的蒙特卡罗计算结果与基于经验公式的Shiled11软件的计算结果做了比较。结果表明，基于束流线源模型的蒙特卡罗计算结果与基于经验公式的Shiled11软件的计算结果吻合较好；主体墙外的剂量主要是由中子贡献，95%以上的中子剂量是由巨共振中子贡献。因此，基于电子束流线源模型的蒙特卡罗方法适用于电子直线加速器的主体墙的横向屏蔽设计。

Abstract

Background: Dalian Coherent Light Source (DCLS) which is under construction is the first fourth-generation light source in China

and the only free electron laser with adjustable ultraviolet waves in the world. Purpose and Methods: By adopting the FLUKA code

a cylinder-tunnel geometric model and a line-source sampling physical model are constructed to calculate the thickness of shielding walls in the section of injector. The difference is discussed by comprehensive comparison of calculation results based on FLUKA and SHIELD11. Results: The results based on the FLUKA coincide with that based on SHILED11. The dose out of shielding walls is mainly comprised by the dose of neutron

and the dose of Giant-Resonance accounts for more than 95% of neutron dose. Conclusion: Line-source sampling physical model constructed based on Monte Carlo method can be used in shielding design of electron accelerator’s main walls.Cited

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：881246 Visits Today：773

⁰