Measurement of neutron beam spot distribution using a Micromegas
  detector for the Back-n white neutron facility at China Spallation Neutron
  Source

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

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Measurement of neutron beam spot distribution using a Micromegas detector for the Back-n white neutron facility at China Spallation Neutron Source

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Author(s): Binbin Qi , Yang Li , Danyang Zhu , Zhiyong Zhang , Ruirui Fan , Jiang Pan , Jianxin Feng , Chengming Liu , Changqing Feng , Jianbei Liu , Ming Shao , Yi Zhou , Yanfeng Wang , Han Yi , Qi An , Huaiyong Bai , Jie Bao , Ping Cao , Qiping Chen , Yonghao Chen , Pinjing Cheng , Zengqi Cui , 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 , Hantao Jing , Ling Kang , Mingtao Kang , Bo Li , Lun Li , Qiang Li , Xiao Li , Y. Li , Rong Liu , Shubin Liu , Xingyan Liu , Guangyuan Luan , Yinglin Ma , Changjun Ning , Jie Ren , Xichao Ruan , Zhaohui Song , Hong Sun , Xiaoyang Sun , Zhijia Sun , Zhixin Tan , Hongqing Tang , Jingyu Tang , Pengcheng Wang , Qi Wang , Taofeng Wang , Zhaohui Wang , Zheng Wang , Jie Wen , Zhongwei Wen , Qingbiao Wu , Xiaoguang Wu , Xuan Wu , Likun Xie , Yiwei Yang , Li Yu , Tao Yu , Yongji Yu , Guohui Zhang , Jing Zhang , Linhao Zhang , Liying Zhang , Qingming Zhang , Qiwei Zhang , Xianpeng Zhang , Yuliang Zhang , Yingtan Zhao , Liang Zhou , Zuying Zhou , Kejun Zhu , Peng Zhu

Publication date Created: 06 August 2019

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Abstract

The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of China Spallation Neutron Source, is extremely useful for nuclear data measurements. A Micromegas-based neutron detector with two variations is developed to measure the beam spot distribution for this beam line. In this article, the design, fabrication, and characterization of the detector are described. The results of the detector performance tests are presented, which include the relative electron transparency, the gain and the gain uniformity, and the neutron detection capability. The first online test of the detector with the Back-n neutron beam is also presented.