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Studies of back-streaming white neutrons at CSNS
Jing HT(敬罕涛); Tang JY(唐靖宇); Jing, HT; Tang, JY; Tang, HQ; Xia, HH; Liang, TJ; Zhou, ZY; Zhong, QP; Ruan, XC
2010
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
卷号621期号:1-3页码:#REF!
通讯作者Tang, JY (reprint author), CAS, Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型Article
摘要Back-streaming neutrons through the incoming proton channel at the spallation target station of China Spallation Neutron Source (CSNS) are harmful to the proton beam line and should be dealt with carefully. On the other hand, those back-streaming neutrons may be useful for other applications. This paper presents preliminary studies on the characteristics of the neutrons, which have a very wide energy spectrum (white neutrons) and are very suitable for nuclear data measurements. The corresponding yields and time structures of the neutrons in the energy range of 1 eV to 1 MeV from a tungsten target for a proton beam of 1.6 GeV in energy and 63 mu A in average current have been simulated. From the simulation results, one can obtain an uncollimated neutron flux of around 2.0 x 10(5) n/cm(2)/pulse within the given energy range at 80 m away from the target, which accounts for about 53% of the total neutrons. The time resolution of 0.3-0.9%, which is important for the time-of-flight method, is obtained for both the parasite operation mode with two proton bunches and the dedicated operation mode with a single proton bunch. (C) 2010 Elsevier B.V. All rights reserved.
关键词Spallation neutron source Back-streaming neutrons Neutron yield Pulse width Nuclear data measurement
学科领域Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2010.06.097
收录类别SCI
WOS类目Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
WOS记录号WOS:000281109100012
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226080
专题加速器中心
中国科学院高能物理研究所_中国散裂中子源
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Jing HT,Tang JY,Jing, HT,et al. Studies of back-streaming white neutrons at CSNS[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2010,621(1-3):#REF!.
APA 敬罕涛.,唐靖宇.,Jing, HT.,Tang, JY.,Tang, HQ.,...&Ruan, XC.(2010).Studies of back-streaming white neutrons at CSNS.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,621(1-3),#REF!.
MLA 敬罕涛,et al."Studies of back-streaming white neutrons at CSNS".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 621.1-3(2010):#REF!.
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