| 基于单球多计数器、GM计数管同时测量n、γ剂量当量的装置研制 |
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| 引用本文： | 杨明明,宋嘉涛,李建伟,李德源,王博远,刘建忠. 基于单球多计数器、GM计数管同时测量n、γ剂量当量的装置研制[J]. 核电子学与探测技术, 2017, 37(2). DOI: 10.3969/j.issn.0258-0934.2017.02.020 |
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| 作者姓名： | 杨明明 宋嘉涛 李建伟 李德源 王博远 刘建忠 |
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| 作者单位： | 1. 中国辐射防护研究院,太原,030006;2. 浙江省计量科学研究院,杭州,310013 |
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| 摘 要： | 介绍了一款同时测量混合辐射场中n、γ剂量当量的装置研制,该装置通过单球多计数器和GM计数管相结合的方法构成,单球多计数器的探测器由三根两两垂直的3He正比计数管构成,通过解谱的方法得到中子剂量当量。在Am-Be和Cf-252中子参考辐射场中进行了测试,剂量当量相对误差30%;在能量范围为63keV-1.25MeV的入射光子下进行了能量响应试验,相对误差30%。
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| 关 键 词： | n、γ剂量当量 单球多计数器 GM计数管 |
Design of a Measurement Unit for Measuring the Neutron,Gamma Dose Equivalent Meanwhile Based on Single-sphere Multi-detector Neutron Spectrometer and GM Counter |
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| YANG Ming-ming,SONG Jia-tao,LI Jian-wei,LI De-yuan,WANG Bo-yuan,LIU Jian-zhong. Design of a Measurement Unit for Measuring the Neutron,Gamma Dose Equivalent Meanwhile Based on Single-sphere Multi-detector Neutron Spectrometer and GM Counter[J]. Nuclear Electronics & Detection Technology, 2017, 37(2). DOI: 10.3969/j.issn.0258-0934.2017.02.020 |
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| Authors: | YANG Ming-ming SONG Jia-tao LI Jian-wei LI De-yuan WANG Bo-yuan LIU Jian-zhong |
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| Abstract: | This article describes a unit used for measuring the dose equivalent of neutron and gamma ray of the mixed radiation field at the same time,which is composed of single -sphere multi-detector neutron spectrome-ter and GM counting tube.The detector of single sphere with multi -counter is composed of three He -3 pro-portional counters which is orthogonal.It has been tested in the standard neutron radiation field of Cf -252 and Am-Be,the relative error of the dose equivalent is less than 30%.The measurement of energy response has been tested in the incident photon beam which's energy is between 1 MeV and 14 MeV, the relative error is less than 30%. |
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| Keywords: | The dose equivalent of neutron and gamma ray single-sphere multi-detector neutron spectrome-ter GM tube |
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