{"title":"Study of the response of 10B-doped MCP to wide-energy range neutrons from eV to MeV","authors":"Qiang Li, Li-Jiao Wang, Xiang-Biao Qiu, Jing-Wen Li, Wei Xu, Tao Li, Ze-Bin Lin, Chang-Jun Ning, Yong-Hao Chen, Rui-Rui Fan, Kang Sun, Jing-Yu Tang, Rong Zhang, Han-Tao Jing, Bo Mei, Qi An, Hao-Fan Bai, Jiang-Bo Bai, Jie Bao, Ping Cao, Qi-Ping Chen, Zhen Chen, Zeng-Qi Cui, An-Chuan Fan, Chang-Qing Feng, Fan-Zhen Feng, Ke-Qing Gao, Min-Hao Gu, Chang-Cai Han, Zi-Jie Han, Guo-Zhu He, Yong-Cheng He, Yang Hong, Yi-Wei Hu, Han-Xiong Huang, Wei-Hua Jia, Hao-Yu Jiang, Wei Jiang, Zhi-Jie Jiang, Zheng-Yao Jin, Ling Kang, Bo Li, Chao Li, Gong Li, Jia-Wen Li, Xiao Li, Yang Li, Jie Liu, Rong Liu, Shu-Bin Liu, Guang-Yuan Luan, Bin-Bin Qi, Jie Ren, Zhi-Zhou Ren, Xi-Chao Ruan, Zhao-Hui Song, Zhi-Xin Tan, Sheng-Da Tang, Peng-Cheng Wang, Zhao-Hui Wang, Zhong-Wei Wen, Xiao-Guang Wu, Xuan Wu, Li-Kun Xie, Yi-Wei Yang, Han Yi, Yong-Ji Yu, Guo-Hui Zhang, Lin-Hao Zhang, Mo-Han Zhang, Qi-Wei Zhang, Xian-Peng Zhang, Yu-Liang Zhang, Yue Zhang, Zhi-Yong Zhang, Mao-Yuan Zhao, Lu-Ping Zhou, Zhi-Hao Zhou, ..","doi":"10.1007/s41365-024-01516-z","DOIUrl":null,"url":null,"abstract":"<p>Neutron-sensitive microchannel plates (nMCPs) have applications in neutron detection, including energy spectrum measurements, neutron-induced cross sections, and neutron imaging. <span>\\({}^{10}\\)</span>B-doped MCPs (B-MCPs) have attracted significant attention owing to their potential for exhibiting a high neutron detection efficiency over a large neutron energy range. Good spatial and temporal resolutions are useful for neutron energy-resolved imaging. However, their practical applications still face many technical challenges. In this study, a B-MCP with 10 mol% <span>\\({}^{10}\\)</span>B was tested for its response to wide-energy neutrons from eV to MeV at the Back-n white neutron source at the China Spallation Neutron Source. The neutron detection efficiency was calibrated at 1 eV, which is approximately 300 times that of an ordinary MCP and indicates the success of <span>\\({}^{10}\\)</span>B doping. The factors that caused the reduction in the detection efficiency were simulated and discussed. The neutron energy spectrum obtained using B-MCP was compared with that obtained by other measurement methods, and showed very good consistency for neutron energies below tens of keV. The response is more complicated at higher neutron energy, at which point the elastic and nonelastic reactions of all nuclides of B-MCP gradually become dominant. This is beneficial for the detection of neutrons, as it compensates for the detection efficiency of B-MCP for high-energy neutrons.</p>","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Science and Techniques","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s41365-024-01516-z","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Neutron-sensitive microchannel plates (nMCPs) have applications in neutron detection, including energy spectrum measurements, neutron-induced cross sections, and neutron imaging. \({}^{10}\)B-doped MCPs (B-MCPs) have attracted significant attention owing to their potential for exhibiting a high neutron detection efficiency over a large neutron energy range. Good spatial and temporal resolutions are useful for neutron energy-resolved imaging. However, their practical applications still face many technical challenges. In this study, a B-MCP with 10 mol% \({}^{10}\)B was tested for its response to wide-energy neutrons from eV to MeV at the Back-n white neutron source at the China Spallation Neutron Source. The neutron detection efficiency was calibrated at 1 eV, which is approximately 300 times that of an ordinary MCP and indicates the success of \({}^{10}\)B doping. The factors that caused the reduction in the detection efficiency were simulated and discussed. The neutron energy spectrum obtained using B-MCP was compared with that obtained by other measurement methods, and showed very good consistency for neutron energies below tens of keV. The response is more complicated at higher neutron energy, at which point the elastic and nonelastic reactions of all nuclides of B-MCP gradually become dominant. This is beneficial for the detection of neutrons, as it compensates for the detection efficiency of B-MCP for high-energy neutrons.
期刊介绍:
Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research.
Scope covers the following subjects:
• Synchrotron radiation applications, beamline technology;
• Accelerator, ray technology and applications;
• Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine;
• Nuclear electronics and instrumentation;
• Nuclear physics and interdisciplinary research;
• Nuclear energy science and engineering.