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Acta Physica Sinica, Volume. 68, Issue 8, 080101-1(2019)

Experimental result of back-streaming white neutron beam characterization at Chinese spallation neutron source

Jie Bao1, Yong-Hao Chen2,3、*, Xian-Peng Zhang4, Guang-Yuan Luan1, Jie Ren1, Qi Wang1, Xi-Chao Ruan1, Kai Zhang1, Qi An5,6, Huai-Yong Bai7, Ping Cao5,6, Qi-Ping Chen8, Pin-Jing Cheng9, Zeng-Qi Cui7, Rui-Rui Fan2,3,5, Chang-Qing Feng5,6, Min-Hao Gu2,5, Feng-Qin Guo2,3, Chang-Cai Han4, Zi-Jie Han8, Guo-Zhu He1, Yong-Cheng He2,3, Yue-Feng He9, Han-Xiong Huang1, Wei-Ling Huang2,3, Xi-Ru Huang5,6, Xiao-Lu Ji2,5, Xu-Yang Ji0,5, Hao-Yu Jiang7, Wei Jiang2,3, Han-Tao Jing2,3, Ling Kang2,3, Ming-Tao Kang2,3, Chang-Lin Lan0, Bo Li2,3, Lun Li2,3, Qiang Li2,3, Xiao Li2,3, Yang Li2,5, Yang Li2,3, Rong Liu8, Shu-Bin Liu5,6, Xing-Yan Liu8, Ying-Lin Ma2,3, Chang-Jun Ning2,3, Yang-Bo Nie1, Bin-Bin Qi6, Zhao-Hui Song4, Hong Sun2,3, Xiao-Yang Sun2,3, Zhi-Jia Sun2,3,5, Zhi-Xin Tan2,3, Hong-Qing Tang1, Jing-Yu Tang2,3, Peng-Cheng Wang2,3, Tao-Feng Wang0, Yan-Feng Wang2,3, Zhao-Hui Wang1, Zheng Wang2,3, Jie Wen8, Zhong-Wei Wen8, Qing-Biao Wu2,3, Xiao-Guang Wu1, Xuan Wu2,3, Li-Kun Xie0,5, Yi-Wei Yang8, Yi Yang1, Han Yi2,3, Li Yu5,6, Tao Yu5,6, Yong-Ji Yu2,3, Guo-Hui Zhang7, Jing Zhang2,3, Lin-Hao Zhang2,3, Li-Ying Zhang2,3,5, Qing-Min Zhang0, Qi-Wei Zhang1, Yu-Liang Zhang2,3, Zhi-Yong Zhang5,6, Ying-Tan Zhao0, Liang Zhou2,3, Zu-Ying Zhou1, Dan-Yang Zhu6, Ke-Jun Zhu2,5, and Peng Zhu2,3
Author Affiliations
  • 0Beihang University, Beijing 100083, China
  • 0Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China
  • 0School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 0Xi’an Jiaotong University, Xi’an 710049, China
  • 1Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China
  • 2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 3Dongguan Neutron Science Center, Dongguan 523803, China
  • 4Northwest Institute of Nuclear Technology, Xi’an 710024, China
  • 5State Key Laboratory of Particle Detection and Electronic, Beijing 100049, Hefei 230026, China
  • 6Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • 7State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  • 8Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
  • 9University of South China, Hengyang 421001, China
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    The Chinese spallation neutron source was completed in May 2018 and then subsequently commissioned. The Back-streaming white neutron beam line can be used in neutron nuclear data measurement, neutron physics research, and nuclear technology. In these experiments, it is necessary to know the neutron energy spectrum, the neutron flux, and the neutron beam profile of the neutron beam. In this paper, we present the preliminary measurements of these parameters. The neutron energy spectrum and neutron flux are measured by the time-of-flight method with a fission chamber equipped with 235U and 238U samples and a 6Li-Si detector. The neutron beam profile is measured by a scintillator-CMOS detection system. The preliminary experimental measurements of the beam line are obtained. Among them, the energy spectrum measurement range of white neutrons is from eV to more than 100 MeV, which also gives an uncertainty analysis; the neutron fluence rate gives the full power value of the two experimental halls; the collimated white neutron beam spot is given under a diameter of 60 mm. The future plan is also given. The results of these experimental parameters can serve as the foundation for the future nuclear data measurement and detector calibration experiments of the beam line.

    Keywords
    back-streaming white neutronChina spallation neutron sourceneutron beam characterizationneutron time-of-flight method
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    Jie Bao, Yong-Hao Chen, Xian-Peng Zhang, Guang-Yuan Luan, Jie Ren, Qi Wang, Xi-Chao Ruan, Kai Zhang, Qi An, Huai-Yong Bai, Ping Cao, Qi-Ping Chen, Pin-Jing Cheng, Zeng-Qi Cui, Rui-Rui Fan, Chang-Qing Feng, Min-Hao Gu, Feng-Qin Guo, Chang-Cai Han, Zi-Jie Han, Guo-Zhu He, Yong-Cheng He, Yue-Feng He, Han-Xiong Huang, Wei-Ling Huang, Xi-Ru Huang, Xiao-Lu Ji, Xu-Yang Ji, Hao-Yu Jiang, Wei Jiang, Han-Tao Jing, Ling Kang, Ming-Tao Kang, Chang-Lin Lan, Bo Li, Lun Li, Qiang Li, Xiao Li, Yang Li, Yang Li, Rong Liu, Shu-Bin Liu, Xing-Yan Liu, Ying-Lin Ma, Chang-Jun Ning, Yang-Bo Nie, Bin-Bin Qi, Zhao-Hui Song, Hong Sun, Xiao-Yang Sun, Zhi-Jia Sun, Zhi-Xin Tan, Hong-Qing Tang, Jing-Yu Tang, Peng-Cheng Wang, Tao-Feng Wang, Yan-Feng Wang, Zhao-Hui Wang, Zheng Wang, Jie Wen, Zhong-Wei Wen, Qing-Biao Wu, Xiao-Guang Wu, Xuan Wu, Li-Kun Xie, Yi-Wei Yang, Yi Yang, Han Yi, Li Yu, Tao Yu, Yong-Ji Yu, Guo-Hui Zhang, Jing Zhang, Lin-Hao Zhang, Li-Ying Zhang, Qing-Min Zhang, Qi-Wei Zhang, Yu-Liang Zhang, Zhi-Yong Zhang, Ying-Tan Zhao, Liang Zhou, Zu-Ying Zhou, Dan-Yang Zhu, Ke-Jun Zhu, Peng Zhu. Experimental result of back-streaming white neutron beam characterization at Chinese spallation neutron source[J]. Acta Physica Sinica, 2019, 68(8): 080101-1

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    Received: Dec. 12, 2018

    Accepted: --

    Published Online: Oct. 29, 2019

    The Author Email:

    DOI:10.7498/aps.68.20182191

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    Nuclear physics
    Particles and fields
    Particle and nuclear astrophysics and cosmology