Application of global variance reduction method to calculate a high-resolution fast neutron flux distribution for TMSR-SF1
文献类型：期刊论文
| 作者 | Yang, P; Dai, Y; Zou, Y; Yan, R; Zhou, B; Yu, SH; Ma, YW |
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2019 |
| 卷号 | 30期号:8页码:- |
| 关键词 | PHOTONEUTRONS |
| ISSN号 | 1001-8042 |
| DOI | 10.1007/s41365-019-0650-y |
| 文献子类 | 期刊论文 |
| 英文摘要 | The solid fuel thorium molten salt reactor (TMSR-SF1) is a 10-MWth fluoride-cooled pebble bed reactor. As a new reactor concept, one of the major limiting factors to reactor lifetime is radiation-induced material damage. The fast neutron flux (E>0.1MeV) can be used to assess possible radiation damage. Hence, a method for calculating high-resolution fast neutron flux distribution of the full-scale TMSR-SF1 reactor is required. In this study, a two-step subsection approach based on MCNP5 involving a global variance reduction method, referred to as forward-weighted consistent adjoint-driven importance sampling, was implemented to provide fast neutron flux distribution throughout the TMSR-SF1 facility. In addition, instead of using the general source specification cards, the user-provided SOURCE subroutine in MCNP5 source code was employed to implement a source biasing technique specialized for TMSR-SF1. In contrast to the one-step analog approach, the two-step subsection approach eliminates zero-scored mesh tally cells and obtains tally results with extremely uniform and low relative uncertainties. Furthermore, the maximum fast neutron fluxes of the main components in TMSR-SF1 are provided, which can be used for radiation damage assessment of the structural materials. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31966]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yang, P,Dai, Y,Zou, Y,et al. Application of global variance reduction method to calculate a high-resolution fast neutron flux distribution for TMSR-SF1[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(8):-. |
| APA | Yang, P.,Dai, Y.,Zou, Y.,Yan, R.,Zhou, B.,...&Ma, YW.(2019).Application of global variance reduction method to calculate a high-resolution fast neutron flux distribution for TMSR-SF1.NUCLEAR SCIENCE AND TECHNIQUES,30(8),-. |
| MLA | Yang, P,et al."Application of global variance reduction method to calculate a high-resolution fast neutron flux distribution for TMSR-SF1".NUCLEAR SCIENCE AND TECHNIQUES 30.8(2019):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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