Jie Ren, Xi-Chao Ruan, Yong-Hao Chen, Wei Jiang, Jie Bao, Guang-Yuan Luan, Qi-Wei Zhang, Han-Xiong Huang, Zhao-Hui Wang, Qi An, Huai-Yong Bai, Yu Bao, Ping Cao, Hao-Lei Chen, Qi-Ping Chen, Yu-Kai Chen, Zhen Chen, Zeng-Qi Cui, Rui-Rui Fan, Chang-Qing Feng, Ke-Qing Gao, Min-Hao Gu, Chang-Cai Han, Zi-Jie Han, Guo-Zhu He, Yong-Cheng He, Yang Hong, Wei-Ling Huang, Xi-Ru Huang, Xiao-Lu Ji, Xu-Yang Ji, Hao-Yu Jiang, Zhi-Jie Jiang, Han-Tao Jing, Ling Kang, Ming-Tao Kang, Bo Li, Chao Li, Jia-Wen Li, Lun Li, Qiang Li, Xiao Li, Yang Li, Rong Liu, Shu-Bin Liu, Xing-Yan Liu, Qi-Li Mu, Chang-Jun Ning, Bin-Bin Qi, Zhi-Zhou Ren, Ying-Peng Song, Zhao-Hui Song, Hong Sun, Kang Sun, Xiao-Yang Sun, Zhi-Jia Sun, Zhi-Xin Tan, Hong-Qing Tang, Jing-Yu Tang, Xin-Yi Tang, Bin-Bin Tian, Li-Jiao Wang, Peng-Cheng Wang, Qi Wang, Tao-Feng Wang, Jie Wen, Zhong-Wei Wen, Qing-Biao Wu, Xiao-Guang Wu, Xuan Wu, Li-Kun Xie, Yi-Wei Yang, Han Yi, Li Yu, Tao Yu, Yong-Ji Yu, Guo-Hui Zhang, Lin-Hao Zhang, Xian-Peng Zhang, Yu-Liang Zhang, Zhi-Yong Zhang, Yu-Bin Zhao, Lu-Ping Zhou, Zu-Ying Zhou, Dan-Yang Zhu, Ke-Jun Zhu, Peng Zhu. In-beam γ-rays of back-streaming white neutron source at China Spallation Neutron Source [J]. Acta Physica Sinica, 2020, 69(17): 172901-1
- Acta Physica Sinica
- Vol. 69, Issue 17, 172901-1 (2020)
Fig. 1. Layout of the CSNS Back-n.
Fig. 2. Geometric model of the spallation target in Geant 4 code.
Fig. 3. The simulation results of the in-beam gamma rays: (a) The energy spectrum; (b) the time structure.
Fig. 4. The energy spectra of the in-beam gamma rays: (a) The energy spectra of γ -flash and the consecutive gamma rays; (b) the energy spectra of the consecutive gamma rays at different time.
Fig. 5. (a) The experimental setup of the direct measurement; (b) the structure of the EJ-420 scintillator.
Fig. 6. The waveforms of EJ-420: Gamma ray’s waveform and neutron’s waveform.
Fig. 7. (a) The pulse shape discrimination result of neutron and gamma rays; (b) time-of-flight spectrum of the EJ-420.
Fig. 8. (a) The experimental setup of the indirect measurement; (b) the geometric model in Geant 4 code.
Fig. 9. The TOF spectrum of indirect measurement (black solid line) and the Geant 4 simulated TOF spectrum (red solid line) and the in-beam γ -rays (blue dashed line).
Fig. 10. The comparison of the TOF spectra of the in-beam gamma rays.
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Table 1. Physical models in the Geant 4 code.
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