A novel method for rapid calculation of moderated neutron spectrum and its application in deep penetration
文献类型：期刊论文
| 作者 | Cao, Chenglong1,3; Cao, Pei1,3; Gan, Quan2 |
| 刊名 | ANNALS OF NUCLEAR ENERGY
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 168 |
| 关键词 | Moderated neutron spectrum Deep penetration Multi-dimensional response matrix Matrix operation TRIGA |
| ISSN号 | 0306-4549 |
| DOI | 10.1016/j.anucene.2021.108895 |
| 通讯作者 | Gan, Quan(quan.gan@fds.org.cn) |
| 英文摘要 | The moderated neutron spectrum has an essential influence on the neutronics experimental studies and the neutron transport simulation method (such as Monte Carlo method) is one of the important methods for the calculation of it. The Monte Carlo method is characterized by its high accuracy, however, it will bring high time-consuming problems, and it is difficult to converge in the case of deep penetration. In this research, a novel method for rapid calculation of moderated neutron spectrum was developed. It used the Monte Carlo method to decompose typical shielding materials into a library according to a fixed thickness and calculated the multi-dimensional response matrix corresponding to the shielding module. With adjustment of its thickness, the moderated neutron spectrum was able to be calculated through matrix operation. The proposed method was verified under the moderator composed of shielding mod-ules of different numbers, thickness and materials by comparing with the results of the Monte Carlo algo-rithm. The results stated the moderated neutron spectrum calculated by this method and Monte Carlo algorithm reached the order of 1.000E-06 on the MSE. Furthermore, the proposed method was verified with a simplified thermal reactor TRIGA in the case of deep penetration. The results showed that the moderated neutron spectrum in the convergent energy range of the two methods also performed well, and in the non-convergent energy range, the proposed method could give a heuristic neutron spectrum.(c) 2021 Elsevier Ltd. All rights reserved. |
| WOS关键词 | CARLO VARIANCE REDUCTION |
| 资助项目 | Young Elite Scientists Sponsorship Program by CAST[2017QNRC001] ; Informatization Project of Chinese Academy of Sciences[XXH13506-104] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000793273600007 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Young Elite Scientists Sponsorship Program by CAST ; Informatization Project of Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/130761]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Gan, Quan |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Nucl Energy Safety Technol, Hefei 230031, Anhui, Peoples R China 2.Int Acad Neutron Sci, Qingdao 266199, Shandong, Peoples R China 3.Univ Sci & Technol China, Hefei 230027, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Chenglong,Cao, Pei,Gan, Quan. A novel method for rapid calculation of moderated neutron spectrum and its application in deep penetration[J]. ANNALS OF NUCLEAR ENERGY,2022,168. |
| APA | Cao, Chenglong,Cao, Pei,&Gan, Quan.(2022).A novel method for rapid calculation of moderated neutron spectrum and its application in deep penetration.ANNALS OF NUCLEAR ENERGY,168. |
| MLA | Cao, Chenglong,et al."A novel method for rapid calculation of moderated neutron spectrum and its application in deep penetration".ANNALS OF NUCLEAR ENERGY 168(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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