Radiation analysis and simulation of the CFETR neutral beam system prototype with hydrogen beam

Chundong HU; Mengting LI; Yahong XIE; Yuqing CHEN

doi:10.11889/j.0253-3219.2018.hjs.41.090603

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Radiation analysis and simulation of the CFETR neutral beam system prototype with hydrogen beam

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2021-05-19

- Radiation analysis and simulation of the CFETR neutral beam system prototype with hydrogen beam
- NUCLEAR TECHNIQUES Vol. 41, Issue 9, Article number: 090603(2018)
- 作者机构：
  
  1.中国科学院等离子体物理研究所合肥 230031
  2.中国科学技术大学合肥 230026
- 作者简介：
- 基金信息：
  
  the National Key R&D Program of China;National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China
- DOI：10.11889/j.0253-3219.2018.hjs.41.090603
  CLC： TL69
- Received：02 March 2018，
  
  Revised：04 May 2018，
  
  Published：2018-09
- 稿件说明：
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Chundong HU, Mengting LI, Yahong XIE, et al. Radiation analysis and simulation of the CFETR neutral beam system prototype with hydrogen beam[J]. Nuclear techniques, 2018, 41(9): 090603
DOI：

Chundong HU, Mengting LI, Yahong XIE, et al. Radiation analysis and simulation of the CFETR neutral beam system prototype with hydrogen beam[J]. Nuclear techniques, 2018, 41(9): 090603 DOI： 10.11889/j.0253-3219.2018.hjs.41.090603.

摘要

中国聚变工程实验堆（China Fusion Engineering Test Reactor，CFETR）负离子源中性束系统验证样机正在积极设计筹建中，样机建成后在运行过程中会产生辐射。在设计阶段，仔细分析辐射源的类型、强度和空间分布，为辐射屏蔽设计提供输入数据，从而确保工作人员的辐射安全非常重要。本文通过对样机进行物理和几何建模，然后利用MCNP（Monte Carlo N Particle Transport Code）程序模拟计算200 keV充氢运行的负离子源中性束系统验证样机各关键点的辐射剂量。研究结果为CFETR中性束系统验证样机辐射屏蔽设计提供参考。

Abstract

Background

China fusion engineering test reactor (CFETR) neutral beam injector (NBI) prototype is being actively designed and built. The radiation will be generated during the operation of the prototype. In order to ensure the safety of staff

it is very important to analyze the radiation and types and design the radiation shielding at the design stage.

Purpose

To study the radiation dose of the CFETR neutral beam test facility with hydrogen beam energy of 200 keV.

Methods

According to the established model of physics parameter and geometry

the radiation dose of the key points of the negative ion based neutral beam injector system with the beam energy of 200 keV was simulated by Monte Carlo N particle transport code (MCNP).

Results

The vacuum wall has some self-shielding effects

but it does not decrease the dose to the dose limits setting by the International Atomic Energy Agency (IAEA).

Conclusion

This result can provide important reference for the design of radiation shielding for CFETR neutral beam system.

关键词

Keywords

references

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