| 非准直中子场能谱测量用多测量面~3He探测器理论设计 |
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| 引用本文： | 张文首,陈达,苏春磊,杨宁,江新标,于青玉,邬泽鹏,长孙永刚.非准直中子场能谱测量用多测量面~3He探测器理论设计[J].原子能科学技术,2017,51(3):508-514. |
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| 作者姓名： | 张文首 陈达 苏春磊 杨宁 江新标 于青玉 邬泽鹏 长孙永刚 |
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| 作者单位： | 1.西北核技术研究所 强脉冲辐射环境模拟与效应国家重点实验室，陕西 西安710024；2.南京航空航天大学，江苏 南京210016 |
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| 基金项目： | 国家自然科学基金资助项目(11275149) |
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| 摘 要： | 利用Geant4软件模拟计算了5种具有较好对称性的多测量面结构探测器对不同方向入射中子的探测效率。计算结果表明,具有对称性的多测量面结构探测器对不同方向入射的中子具有较好的探测效率响应方向一致性。其中球形正比探测器加6只圆形半导体探测器的结构芯体在各方面表现最均衡,具有应用于非准直中子场能谱测量的潜力。
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| 关 键 词： | 快中子能谱 非准直中子场 多测量面3He探测器" target="_blank">3He探测器')">多测量面3He探测器 |
Theoretical Design of Multi-facet 3 He Detector for Measurement of Uncollimated Neutron Field |
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| ZHANG Wen-shou,CHEN Da,SU Chun-lei,YANG Ning,JIANG Xin-biao,YU Qing-yu,WU Ze-peng,ZHANGSUN Yong-gang.Theoretical Design of Multi-facet 3 He Detector for Measurement of Uncollimated Neutron Field[J].Atomic Energy Science and Technology,2017,51(3):508-514. |
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| Authors: | ZHANG Wen-shou CHEN Da SU Chun-lei YANG Ning JIANG Xin-biao YU Qing-yu WU Ze-peng ZHANGSUN Yong-gang |
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| Affiliation: | 1.State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi’an 710024, China; 2.Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The detection efficiency of five kinds of symmetric multi-facet detectors for neutrons with various incident angles was calculated by the Geant 4 code .The calcula-tion results indicate that the efficiency of the detector with symmetric multi-facet struc-ture shows good consistency for neutrons with different incident directions .The spheri-cal proportional detector attached with six circular semiconductor detectors has the most balanced performance in all aspects , thus has the potential to apply in the spectrum measurement of uncollimated neutron field . |
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| Keywords: | fast neutron spectrum uncollimated neutron field multi-facet 3 He detector |
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