Design and simulations of the neutron dump for the back -streaming white neutron beam at CSNS

doi:10.1016/j.radphyschem.2016.06.023

	Design and simulations of the neutron dump for the back -streaming white neutron beam at CSNS
	Jing HT(敬罕涛); Zhang, LY; Wang, XQ; Tang, JY; Jing, HT; Tang JY(唐靖宇)
刊名	RADIATION PHYSICS AND CHEMISTRY
	2016
卷号	127 页码:133-139
关键词	Spallation neutron source Back-streaming neutron Neutron dump Background Monte Carlo
DOI	10.1016/j.radphyschem.2016.06.023
通讯作者	敬罕涛
英文摘要	For nuclear data measurements with a white neutron source, to control the background at the detector is a key issue. The neutron dump which locates at the end of the white neutron beam line at CSNS has a very important impact to the neutron and gamma backgrounds in the endstation. A sophisticated neutron dump was designed to reduce the backgrounds to the level of about 10(-8) relative to the neutron flux. In this paper, the method to suppress both neutron and gamma backgrounds near a white-spectrum neutron dump is introduced. The optimized geometry structure and materials of the dump are described, and the neutron and gamma space distributions have been calculated by using the FLUKA. code for different operation settings which are defined by beam spots of Phi 30 mm, Phi 60 mm and 90 mm x 90 mm, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Chemistry; Nuclear Science & Technology; Physics
语种	英语
WOS记录号	WOS:000381835500021
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260184]
专题	高能物理研究所_东莞分部
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Jing HT,Zhang, LY,Wang, XQ,et al. Design and simulations of the neutron dump for the back -streaming white neutron beam at CSNS[J]. RADIATION PHYSICS AND CHEMISTRY,2016,127:133-139.
APA	敬罕涛,Zhang, LY,Wang, XQ,Tang, JY,Jing, HT,&唐靖宇.(2016).Design and simulations of the neutron dump for the back -streaming white neutron beam at CSNS.RADIATION PHYSICS AND CHEMISTRY,127,133-139.
MLA	敬罕涛,et al."Design and simulations of the neutron dump for the back -streaming white neutron beam at CSNS".RADIATION PHYSICS AND CHEMISTRY 127(2016):133-139.