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Neutron energy spectrum measurement of the Back-n white neutron source at CSNS

  • Yonghao Chen
  • Guangyuan Luan
  • Jie BaoEmail author
  • Hantao Jing
  • Liying Zhang
  • Qi An
  • Huaiyong Bai
  • Ping Cao
  • Qiping Chen
  • Pinjing Cheng
  • Zengqi Cui
  • Ruirui Fan
  • Changqing Feng
  • Minhao Gu
  • Fengqin Guo
  • Changcai Han
  • Zijie Han
  • Guozhu He
  • Yongcheng He
  • Yuefeng He
  • Hanxiong Huang
  • Weiling Huang
  • Xiru Huang
  • Xiaolu Ji
  • Xuyang Ji
  • Haoyu Jiang
  • Wei Jiang
  • Ling Kang
  • Mingtao Kang
  • Bo Li
  • Lun Li
  • Qiang Li
  • Xiao Li
  • Yang Li
  • Yang Li
  • Rong Liu
  • Shubin Liu
  • Xingyan Liu
  • Yinglin Ma
  • Changjun Ning
  • Binbin Qi
  • Jie Ren
  • Xichao Ruan
  • Zhaohui Song
  • Hong Sun
  • Xiaoyang Sun
  • Zhijia Sun
  • Zhixin Tan
  • Hongqing Tang
  • Jingyu Tang
  • Pengcheng Wang
  • Qi Wang
  • Taofeng Wang
  • Yanfeng Wang
  • Zhaohui Wang
  • Zheng Wang
  • Jie Wen
  • Zhongwei Wen
  • Qingbiao Wu
  • Xiaoguang Wu
  • Xuan Wu
  • Likun Xie
  • Yiwei Yang
  • Han Yi
  • Li Yu
  • Tao Yu
  • Yongji Yu
  • Guohui Zhang
  • Jing Zhang
  • Linhao Zhang
  • Qingmin Zhang
  • Qiwei Zhang
  • Xianpeng Zhang
  • Yuliang Zhang
  • Zhiyong Zhang
  • Yingtan Zhao
  • Liang Zhou
  • Zuying Zhou
  • Danyang Zhu
  • Kejun Zhu
  • Peng Zhu
Special Article - New Tools and Techniques

Abstract.

China Spallation Neutron Source (CSNS) has been built and commissioned successfully in 2018 which is implemented by impinging 1.6 GeV protons onto a tungsten target with 25 Hz repetition frequency. An associated white neutron beam line exploiting the back-streaming neutrons, named Back-n, with a flight path of 55 m in endstation 1 (#ES1) and 76 m in endstation 2 (#ES2) was built mainly for nuclear data measurements. The Back-n beam line started running since the beginning of 2018 and the neutron energy spectrum was measured at the very beginning since it is an essential information for feasibility study and analysis of any measurement. In this paper, the measurement of the neutron energy spectrum of Back-n #ES2 is reported. The first result of the neutron flux from 1 eV to 100 MeV measured by a fission chamber based on the 235U(n, f) reaction is presented. The total neutron flux normalized to the proton beam power of 100 kW is \( 7.03 \times 10^{6}\) neutrons/cm2/s. The results show a good agreement with that of the Monte Carlo simulation as well.

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Copyright information

© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yonghao Chen
    • 1
    • 2
  • Guangyuan Luan
    • 3
  • Jie Bao
    • 3
    Email author
  • Hantao Jing
    • 1
    • 2
  • Liying Zhang
    • 1
    • 2
    • 4
  • Qi An
    • 4
    • 5
  • Huaiyong Bai
    • 6
  • Ping Cao
    • 4
    • 5
  • Qiping Chen
    • 7
  • Pinjing Cheng
    • 8
  • Zengqi Cui
    • 6
  • Ruirui Fan
    • 1
    • 2
    • 4
  • Changqing Feng
    • 4
    • 5
  • Minhao Gu
    • 1
    • 4
  • Fengqin Guo
    • 4
    • 5
  • Changcai Han
    • 9
  • Zijie Han
    • 7
  • Guozhu He
    • 3
  • Yongcheng He
    • 1
    • 2
  • Yuefeng He
    • 8
  • Hanxiong Huang
    • 3
  • Weiling Huang
    • 1
    • 2
  • Xiru Huang
    • 4
    • 5
  • Xiaolu Ji
    • 1
    • 4
  • Xuyang Ji
    • 4
    • 10
  • Haoyu Jiang
    • 6
  • Wei Jiang
    • 1
    • 2
  • Ling Kang
    • 1
    • 2
  • Mingtao Kang
    • 1
    • 2
  • Bo Li
    • 1
    • 2
  • Lun Li
    • 1
    • 2
  • Qiang Li
    • 1
    • 2
  • Xiao Li
    • 1
    • 2
  • Yang Li
    • 1
    • 4
  • Yang Li
    • 1
    • 2
  • Rong Liu
    • 7
  • Shubin Liu
    • 4
    • 5
  • Xingyan Liu
    • 7
  • Yinglin Ma
    • 1
    • 2
  • Changjun Ning
    • 1
    • 2
  • Binbin Qi
    • 4
    • 5
  • Jie Ren
    • 3
  • Xichao Ruan
    • 3
  • Zhaohui Song
    • 9
  • Hong Sun
    • 1
    • 2
  • Xiaoyang Sun
    • 1
    • 2
  • Zhijia Sun
    • 1
    • 2
    • 4
  • Zhixin Tan
    • 1
    • 2
  • Hongqing Tang
    • 3
  • Jingyu Tang
    • 1
    • 2
  • Pengcheng Wang
    • 1
    • 2
  • Qi Wang
    • 3
  • Taofeng Wang
    • 11
  • Yanfeng Wang
    • 1
    • 2
  • Zhaohui Wang
    • 3
  • Zheng Wang
    • 1
    • 2
  • Jie Wen
    • 7
  • Zhongwei Wen
    • 7
  • Qingbiao Wu
    • 1
    • 2
  • Xiaoguang Wu
    • 3
  • Xuan Wu
    • 1
    • 2
  • Likun Xie
    • 4
    • 10
  • Yiwei Yang
    • 7
  • Han Yi
    • 1
    • 2
  • Li Yu
    • 4
    • 5
  • Tao Yu
    • 4
    • 5
  • Yongji Yu
    • 1
    • 2
  • Guohui Zhang
    • 6
  • Jing Zhang
    • 1
    • 2
  • Linhao Zhang
    • 1
    • 2
  • Qingmin Zhang
    • 12
  • Qiwei Zhang
    • 3
  • Xianpeng Zhang
    • 9
  • Yuliang Zhang
    • 1
    • 2
  • Zhiyong Zhang
    • 4
    • 5
  • Yingtan Zhao
    • 12
  • Liang Zhou
    • 1
    • 2
  • Zuying Zhou
    • 3
  • Danyang Zhu
    • 4
    • 5
  • Kejun Zhu
    • 1
    • 4
  • Peng Zhu
    • 1
    • 2
  1. 1.Institute of High Energy PhysicsChinese Academy of Sciences (CAS)BeijingChina
  2. 2.Dongguan Neutron Science CenterDongguanChina
  3. 3.Key Laboratory of Nuclear DataChina Institute of Atomic EnergyBeijingChina
  4. 4.State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of ChinaHefeiChina
  5. 5.Department of Modern PhysicsUniversity of Science and Technology of ChinaHefeiChina
  6. 6.State Key Laboratory of Nuclear Physics and Technology, School of PhysicsPeking UniversityBeijingChina
  7. 7.Institute of Nuclear Physics and ChemistryChina Academy of Engineering PhysicsMianyangChina
  8. 8.University of South ChinaHengyangChina
  9. 9.Northwest Institute of Nuclear TechnologyXi’anChina
  10. 10.Department of Engineering and Applied PhysicsUniversity of Science and Technology of ChinaHefeiChina
  11. 11.School of PhysicsBeihang UniversityBeijingChina
  12. 12.Xi’an Jiaotong UniversityXi’anChina

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