Investigation of thermal neutron scattering data for BeF2 and LiF crystals

CAS OpenIR > 中科院上海应用物理研究所2011-2019年

	Investigation of thermal neutron scattering data for BeF2 and LiF crystals
	Mei, Longwei; Cai, Xiangzhou; Jiang, Dazhen; Chen, Jingen; Guo, Wei; Xiong, Wengang
	2013
Source Publication	JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
ISSN	0022-3131
Volume	50 Issue:4 Pages: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	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
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2011-2019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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