101. Back-n White Neutron Source at CSNS and its Applications
- Author
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Collaboration, The CSNS Back-n, Tang, Jing-Yu, An, Qi, Bai, Jiang-Bo, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Hao-Lei, Chen, Qi-Ping, Chen, Yong-Hao, Chen, Zhen, Cui, Zeng-Qi, Fan, Rui-Rui, Feng, Chang-Qing, Gao, Ke-Qing, Gao, Xiao-Long, Gu, Min-Hao, Han, Chang-Cai, Han, Zi-Jie, He, Guo-Zhu, He, Yong-Cheng, Hong, Yang, Hu, Yi-Wei, Huang, Han-Xiong, Huang, Xi-Ru, Jiang, Hao-Yu, Jiang, Wei, Jiang, Zhi-Jie, Jing, Han-Tao, Kang, Ling, Li, Bo, Li, Chao, Li, Jia-Wen, Li, Qiang, Li, Xiao, Li, Yang, Liu, Jie, Liu, Rong, Liu, Shu-Bin, Liu, Xing-Yan, Long, Ze, Luan, Guang-Yuan, Ning, Chang-Jun, Niu, Meng-Chen, Qi, Bin-Bin, Ren, Jie, Ren, Zhi-Zhou, Ruan, Xi-Chao, Song, Zhao-Hui, Sun, Kang, Sun, Zhi-Jia, Tan, Zhi-Xin, Tang, Xin-Yi, Tian, Bin-Bin, Wang, Li-Jiao, Wang, Peng-Cheng, Wang, Zhao-Hui, Wen, Zhong-Wei, Wu, Xiao-Guang, Wu, Xuan, Xie, Li-Kun, Yang, Xiao-Yun, Yang, Yi-Wei, Yi, Han, Yu, Li, Yu, Tao, Yu, Yong-Ji, Zhang, Guo-Hui, Zhang, Lin-Hao, Zhang, Qi-Wei, Zhang, Xian-Peng, Zhang, Yu-Liang, Zhang, Zhi-Yong, Zhou, Lu-Ping, Zhou, Zhi-Hao, and Zhu, Ke-Jun
- Subjects
Physics - Accelerator Physics - 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., Comment: 11 pages, 9 figures
- Published
- 2021