Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Investigation of thermal neutron scattering data for BeF2 and LiF crystals | |
Mei, Longwei ; Cai, Xiangzhou; Jiang, Dazhen; Chen, Jingen; Guo, Wei; Xiong, Wengang
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| 2013 | |
| Source Publication | JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
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| ISSN | 0022-3131 |
| Volume | 50Issue:4Pages:CONCATENATE(Sheet1!I180,-Sheet1!J180) |
| Abstract | The influences of thermal neutron scattering data for BeF2 and LiF crystals on molten salt reactor physics are investigated in this work. Based on the structure parameters of BeF2 and LiF, the coherent scattering for both crystals is added to NJOY source code. The ENDF6 format thermal neutron scattering sub-libraries for both crystals are evaluated with their phonon spectra using LEAPR; the ACE format data are produced by NJOY subsequently. Finally, the effect of thermal neutron scattering of BeF2 and LiF crystals on k eff and spectrum are investigated. The result shows that thermal neutron scattering for bound state of BeF2 and LiF influence k eff and spectrum obviously. The elastic scattering cross section for bound state of crystals is smaller than free atom; it makes k eff decrease (1%2%) and spectra be hardened. The higher temperature the bound state has, the smaller coherent elastic scattering cross section it gets; therefore, k eff decreases with temperature. It is suggested that the thermal neutron data of LiF and BeF2 should be taken into account for molten salt reactor. |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000316718600010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13793 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Mei, Longwei,Cai, Xiangzhou,Jiang, Dazhen,et al. Investigation of thermal neutron scattering data for BeF2 and LiF crystals[J]. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY,2013,50(4):CONCATENATE(Sheet1!I180,-Sheet1!J180). |
| APA | Mei, Longwei,Cai, Xiangzhou,Jiang, Dazhen,Chen, Jingen,Guo, Wei,&Xiong, Wengang.(2013).Investigation of thermal neutron scattering data for BeF2 and LiF crystals.JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY,50(4),CONCATENATE(Sheet1!I180,-Sheet1!J180). |
| MLA | Mei, Longwei,et al."Investigation of thermal neutron scattering data for BeF2 and LiF crystals".JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY 50.4(2013):CONCATENATE(Sheet1!I180,-Sheet1!J180). |
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