用蒙特卡罗法研究聚变中子在第一壁引起的辐照损伤

计算物理 ›› 1991, Vol. 8 ›› Issue (4): 395-406.

用蒙特卡罗法研究聚变中子在第一壁引起的辐照损伤

高兴华¹, 霍裕昆², 邵其鋆², 潘正瑛², 陈建新², 吴士明²

1. 中国科学院等离子体物理研究所, 合肥 230031;
2. 复旦大学物理二系, 上海 200433

收稿日期:1990-12-01 修回日期:1991-07-17 出版日期:1991-12-25 发布日期:1991-12-25
基金资助:
国家高技术863支持项目

MONTE-CARLO STUDIES OF RADIATION DAMAGE IN THE FIRST WALL CAUSED BY FUSION NEUTRON

Gao Xinghua¹, Huo Yukun², Pan Zhengying², Shao Qiyun², Chen Janxin², Wu Sheming²

1. Institute of Plasma Physics, Hefei;
2. Nuclear Science Department, Fudan University, Shanghai

Received:1990-12-01 Revised:1991-07-17 Online:1991-12-25 Published:1991-12-25

摘要/Abstract

摘要： 本文用蒙特卡罗法建立了适用于静态复成份非晶态靶的中子输运程序NTGM和辐照损伤程序NRDGM,用以研究第一壁的辐照损伤。计算了EHR第一壁(316ss)的PKA能谱在30eV到1MeV之间,在平均壁负荷为1MW/m²时,平均原子位移率dpa为20.6dpa/a,平均氦产生率为247.18appm/a,平均氢产生率为721.15appm/a。用此结果与EHP结果比较得出,在相同壁负荷下,混合堆的辐照损伤比纯聚变堆严重。计算中使用的截面数据来自MC(87)n数据库。

关键词: 辐照损伤, PKA能谱, 原子位移率, 氦和氢的产生率

Abstract: A Monte-Carlo Neutron Transport Program and Neutron Radiation Damage Program are presented for studying radiation damage in the First Wall. The programs are used to static multi-component amorphous target. With the average wall load 1MW/m², the following calculating results for EHR first wall (type 316 stainlees steel)have been performed using designed neutron spectrums at EHR first wall: the PKA energy spectrums (30eV to 1MeV), average displacement per atom rate (20.6dpa/a), average helium and hydrogen production rates (247.18appm/a and 721.15appm/a). It is shows that Hybrid Reactor's radiation damage more serious than pure Fusion Reactor's by comparison of above results and EHP's calculated results in the same wall load. The cross-section data from MC (87) n library is used in this calculation.

Key words: radiation damage, PKA energy spectrums, displacement per atom rate, helium and hydrogen production rates

高兴华, 霍裕昆, 邵其鋆, 潘正瑛, 陈建新, 吴士明. 用蒙特卡罗法研究聚变中子在第一壁引起的辐照损伤[J]. 计算物理, 1991, 8(4): 395-406.

Gao Xinghua, Huo Yukun, Pan Zhengying, Shao Qiyun, Chen Janxin, Wu Sheming. MONTE-CARLO STUDIES OF RADIATION DAMAGE IN THE FIRST WALL CAUSED BY FUSION NEUTRON[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1991, 8(4): 395-406.

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