Back-n white neutron source at CSNS and its applications

Jing-Yu Tang; Qi AN; Jiang-Bo Bai; Jie Bao; Yu Bao; Ping Cao; Hao-Lei Chen; Qi-Ping Chen; Yong-Hao Chen; Zhen Chen; Zeng-Qi Cui; Rui-Rui Fan; Chang-Qing Feng; Ke-Qing Gao; Xiao-Long Gao; Min-Hao Gu; Chang-Cai Han; Zi-Jie Han; Guo-Zhu He; Yong-Cheng He; Yang Hong; Yi-Wei Hu; Han-Xiong Huang; Xi-Ru Huang; Hao-Yu Jiang; Wei Jiang; Zhi-Jie Jiang; Han-Tao Jing; Ling Kang; Bo Li; Chao Li; Jia-Wen Li; Qiang Li; Xiao Li; Yang Li; Jie Liu; Rong Liu; Shu-Bin Liu; Xing-Yan Liu; Ze Long; Guang-Yuan Luan; Chang-Jun Ning; Meng-Chen Niu; Bin-Bin Qi; Jie Ren; Zhi-Zhou Ren; Xi-Chao Ruan; Zhao-Hui Song; Kang Sun; Zhi-Jia Sun; Zhi-Xin Tan; Xin-Yi Tang; Bin-Bin Tian; Li-Jiao Wang; Peng-Cheng Wang; Zhao-Hui Wang; Zhong-Wei Wen; Xiao-Guang Wu; Xuan Wu; Li-Kun Xie; Xiao-Yun Yang; Yi-Wei Yang; Han Yi; Li Yu; Tao Yu; Yong-Ji Yu; Guo-Hui Zhang; Lin-Hao Zhang; Qi-Wei Zhang; Xian-Peng Zhang; Yu-Liang Zhang; Zhi-Yong Zhang; Lu-Ping Zhou; Zhi-Hao Zhou; Ke-Jun Zhu

doi:10.1007/s41365-021-00846-6

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Back-n white neutron source at CSNS and its applications

ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS | Updated：2021-02-22

- Back-n white neutron source at CSNS and its applications
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- Back-n white neutron source at CSNS and its applications
- Nuclear Science and Techniques 2021年32卷第1期文章编号：11
- Affiliations：
  
  1.State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  2.Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  3.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
  4.Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China
  5.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  6.Spallation Neutron Source Science Center, Dongguan 523803, China
  7.State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  8.Northwest Institute of Nuclear Technology, Xi’an 710024, China
  9.University of Chinese Academy of Sciences, Beijing 100049, China
  10.Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China
  11.State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  Corresponding author, Email: tangjy@ihep.ac.cn
- Funds：
  
  National Key Research and Development Program of China(2016YFA0401600);National Natural Science Foundation of China(11235012;12035017);CSNS Engineering Project, and the Back-n Collaboration Consortium fund
- DOI：10.1007/s41365-021-00846-6
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Jing-Yu Tang, Qi AN, Jiang-Bo Bai, 等. Back-n white neutron source at CSNS and its applications[J]. Nuclear Science and Techniques, 2021,32(1):11

Jing-Yu Tang, Qi AN, Jiang-Bo Bai, et al. Back-n white neutron source at CSNS and its applications[J]. Nuclear Science and Techniques, 2021,32(1):11
Jing-Yu Tang, Qi AN, Jiang-Bo Bai, 等. Back-n white neutron source at CSNS and its applications[J]. Nuclear Science and Techniques, 2021,32(1):11 DOI： 10.1007/s41365-021-00846-6.

Jing-Yu Tang, Qi AN, Jiang-Bo Bai, et al. Back-n white neutron source at CSNS and its applications[J]. Nuclear Science and Techniques, 2021,32(1):11 DOI： 10.1007/s41365-021-00846-6.

摘要

Abstract

Back-streaming neutrons from the spallation target of the China Spallation Neutron Source (CSNS) that emit through the incoming proton channel were exploited to build a white neutron beam facility (the so-called Back-n white neutron source), which was completed in March 2018. The Back-n neutron beam is very intense, at approximately 2×10,7, n/cm,2,/s at 55 m from the target, and has a nominal proton beam with a power of 100 kW in the CSNS-I phase and a kinetic energy of 1.6 GeV and a thick tungsten target in multiple slices with modest moderation from the cooling water through the slices. In addition, the excellent energy spectrum spanning from 0.5 eV to 200 MeV, and a good time resolution related to the time-of-flight measurements make it a typical white neutron source for nuclear data measurements; its overall performance is among that of the best white neutron sources in the world. Equipped with advanced spectrometers, detectors, and application utilities, the Back-n facility can serve wide applications, with a focus on neutron-induced cross-section measurements. This article presents an overview of the neutron beam characteristics, the experimental setups, and the ongoing applications at Back-n.

关键词

Keywords

White neutron sourceNuclear data measurementsExperimental setupsNeutron applications

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