Design of back-streaming white neutron beam line at CSNS

doi:10.1016/j.apradiso.2017.11.013

	Design of back-streaming white neutron beam line at CSNS
	Ning CJ(宁常军); Ruan, XC; Li Q(李强); Tang JY(唐靖宇); Jing HT(敬罕涛); Zhang LY(张利英); Wang, XQ; He, YC; Wang, PC; Tan, ZX
刊名	APPLIED RADIATION AND ISOTOPES
	2018
卷号	132 页码:212-221
关键词	Back-streaming white neutrons Time-of-flight (TOP) method Neutron characteristics Neutron beam collimation Neutron and gamma background
ISSN号	0969-8043
DOI	10.1016/j.apradiso.2017.11.013
文献子类	Article
英文摘要	A white neutron beam line using back-streaming neutrons from the spallation target is under construction at China Spallation Neutron Source (CSNS). Different spectrometers, to be installed in the so-called Back-n beam line for nuclear data measurements, are also being developed in phases. The physical design of the beam line is carried out with the help of a complicated collimation system and a sophisticated neutron dump, taking the overview of the neutron beam characteristics into account. This includes energy spectrum, flux and time structure, the optimizations of neutron beam spots and in-hall background. The wide neutron energy range of 1 eV-100 MeV is excellent for supporting different applications, especially nuclear data measurements. At Endstation#2, which is about 80 m away from the target, the main properties of the beam line include neutron flux of 106 n/cm(2)/s, time resolution of a few per mille over nearly the entire energy range, and in-hall background of about 0.01/cm(2)/s for both neutron and gamma. With its first commission in late 2017, Back-n will not only be the first high-performance white neutron source in China, but also one of the best white neutron sources in the world.
WOS研究方向	Chemistry ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging
语种	英语
WOS记录号	WOS:000423642800034
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285595]
专题	高能物理研究所_东莞分部高能物理研究所_加速器中心高能物理研究所_粒子天体物理中心中国科学院高能物理研究所_中国散裂中子源
通讯作者	Jing HT(敬罕涛)
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	Ning CJ,Ruan, XC,Li Q,et al. Design of back-streaming white neutron beam line at CSNS[J]. APPLIED RADIATION AND ISOTOPES,2018,132:212-221.
APA	宁常军.,Ruan, XC.,李强.,唐靖宇.,敬罕涛.,...&于永积.(2018).Design of back-streaming white neutron beam line at CSNS.APPLIED RADIATION AND ISOTOPES,132,212-221.
MLA	宁常军,et al."Design of back-streaming white neutron beam line at CSNS".APPLIED RADIATION AND ISOTOPES 132(2018):212-221.