10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source  

作　　者：Qiang Li Li‑Jiao Wang Jing‑Yu Tang Xiang‑Biao Qiu Zhen Chen Mao‑Yuan Zhao Chang‑Jun Ning Kai Pan Wei Xu Tao Li Su‑Peng Lu Han Yi Rui‑Rui Fan Chang‑Qing Feng Rong Zhang Xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao Ping Cao Qi‑Ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan Fan Fan‑Zhen Feng Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei Jiang Zhi‑Jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Gong Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑Yuan Luan Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑Cheng Wang Peng‑Cheng Wang Zhao‑Hui Wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Cong Xia Yong‑Ji Yu Guo‑Hui Zhang Hang‑Chang Zhang Lin‑Hao Zhang Qi‑Wei Zhang Xian‑Peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Zhi‑Hao Zhou Ke‑Jun Zhu Chong Zou 

机构地区：[1]Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China [2]Spallation Neutron Source Science Center,Dongguan 523803,China [3]State Key Laboratory of Particle Detection and Electronics,Institute of High Energy Physics Chinese Academy of Sciences,Beijing 100049,China [4]Dongguan Songshan Lake Future School,Dongguan 523808,China [5]School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230027,China [6]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China [7]North Night Vision Science and Technology(Nanjing)Research Institute Co.Ltd,Nanjing 211106,China [8]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China [9]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China [10]Institute of Modern Physics,Fudan University,Shanghai 200433,China [11]Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China [12]China Academy of Engineering Physics,Institute of Nuclear Physics and Chemistry,Mianyang 621900,China [13]USTC archaeometry lab,University of Science and Technology of China,Hefei 230026,China [14]Northwest Institute of Nuclear Technology,Xi’an 710024,China [15]University of Chinese Academy of Sciences,Beijing 100049,China [16]China Shipbuilding Trading Co.,Ltd,Beijing 100044,China

出　　处：《Nuclear Science and Techniques》2024年第8期58-68,共11页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China(No.12035017);the Guangdong Basic and Applied Basic Research Foundation(No.2023A1515030074)。

摘　　要：Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron radiography.Its complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and detector.Consequently,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above keV.The white neutron source(Back-n)at the China Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NRI technique over a wide neutron energy range from eV to MeV.Neutron-sensitive microchannel plates(MCP)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low noise.In this study,we report the development of a 10B-doped MCP detector,along with its associated electronics,data processing system,and NRI experiments at the Back-n.Individual heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be identified.In particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关 键 词：Neutron resonance imaging 10B doped MCP detector White neutron source Sample nuclide identification 

分 类 号：TL816[核科学技术—核技术及应用]