Preliminary physics study of the Lead-Bismuth Eutectic spallation target for China Initiative Accelerator-Driven System

doi:10.1007/s41365-016-0114-6

	Preliminary physics study of the Lead-Bismuth Eutectic spallation target for China Initiative Accelerator-Driven System
	Zhang, Lu 1,2; Yang, Yong-Wei 1; Gao, Yu-Cui 1
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2016-10-01
卷号	27 页码:10
关键词	LBE spallation target Target behavior in subcritical reactor Neutron flux Energy deposition Radiation damage Po-210 accumulated quantities
ISSN号	1001-8042
DOI	10.1007/s41365-016-0114-6
英文摘要	The Lead-Bismuth Eutectic (LBE) spallation target has been considered as one of the two alternatives for the spallation target for China Initiative Accelerator-Driven System. This paper reports the preliminary study on physical feasibility of a U-type LBE target with window. The simulation results based on Monte Carlo transport code MCNPX indicate that the spallation neutron yield is about 2.5 per proton. The maximum spallation neutron flux is observed at about 3 cm below the lowest part of the window. When the LBE target is coupled with the reactor, the reactor neutrons from the fission reaction increased the neutron field significantly. The energy deposition of high-energy protons is the main heat source; the spallation neutrons and reactor neutrons contribute only a small fraction. The maximum energy deposition in the LBE is about 590 W/cm(3) and that in the target window is about 319 W/cm(3). To estimate the lifetime of the target window, we have calculated the radiation damages. The maximum displacement production rate in the target window is about 10 dpa/FPY. The hydrogen and helium production rates generated during normal operation were also evaluated. By analyzing the residual nucleus in the target during the steady operation, we estimated the accumulated quantities of the extreme radioactivity toxicant Po-210 in the LBE target loop. The results would be helpful for the evaluation of the target behavior and will be beneficial to the optimization of the target design work of the experimental facilities.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA03030102]
WOS关键词	RADIATION-DAMAGE ; CROSS-SECTIONS ; TECHNOLOGY ; GENERATION
WOS研究方向	Nuclear Science & Technology ; Physics
语种	英语
出版者	SPRINGER SINGAPORE PTE LTD
WOS记录号	WOS:000388510700017
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43750]
专题	中国科学院近代物理研究所
通讯作者	Yang, Yong-Wei
作者单位	1.Chinese Acad Sci, Dept Spallat Target, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Lu,Yang, Yong-Wei,Gao, Yu-Cui. Preliminary physics study of the Lead-Bismuth Eutectic spallation target for China Initiative Accelerator-Driven System[J]. NUCLEAR SCIENCE AND TECHNIQUES,2016,27:10.
APA	Zhang, Lu,Yang, Yong-Wei,&Gao, Yu-Cui.(2016).Preliminary physics study of the Lead-Bismuth Eutectic spallation target for China Initiative Accelerator-Driven System.NUCLEAR SCIENCE AND TECHNIQUES,27,10.
MLA	Zhang, Lu,et al."Preliminary physics study of the Lead-Bismuth Eutectic spallation target for China Initiative Accelerator-Driven System".NUCLEAR SCIENCE AND TECHNIQUES 27(2016):10.