| 圆柱形中子正比计数管气体倍增机理的研究 |
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| 引用本文： | 贺三军,程晓龙,周剑良.圆柱形中子正比计数管气体倍增机理的研究[J].科技风,2014(14):43-45. |
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| 作者姓名： | 贺三军 程晓龙 周剑良 |
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| 作者单位： | 南华大学核科学技术学院; |
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| 基金项目： | 国家军品配套项目(JPPT-115-5-882) |
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| 摘 要： | <正>比计数管是探测中子的关键技术之一,而正比计数管内气体的倍增机制是影响其性能的主要因素。本文总结了现有的9种不同的气体倍增表达式,分别阐述了各自的推演过程、应用范围和对应的各项参数值。并通过对比,最终发现Diethorn公式最简便,能在一般的场合得到较好应用,目前使用广泛;半微观公式能统一地表述各种情况下的气体倍增关系,但只在部分场合中得到验证,参数还不够完全,完善各项参数也是当前正在研究的工作。
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| 关 键 词： | 正比计数管 倍增公式 约化场强 第一汤姆逊系数 |
The mechanisms of the multiplication study in cylindrical neutron proportional counter |
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| Authors: | He Sanjun Cheng Xiaolong Zhou Jianliang |
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| Institution: | He Sanjun Cheng Xiaolong Zhou Jianliang (University of South China, School of Nuclear Science and Technology, Hunan Hengyang, China 421001) |
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| Abstract: | Proportional counteris one ofthe key techniques ofneutron detection, whist the gas multiplication mechanism is the main factor ofaffeecting property. Nine different gas multiplication formnlas are summarizedin this paper, the derivation process, applying scope and every corresponding factors are illustrated separately. After comparison, it is clear that the Diethorn formula is the most Simple and can be used in general situation extensive; the se- mi -microscope formula can express the gas multiplication relationship in every situations, while is validated only in some limited cases and the parameter vahlesare not complete, so some researchesare developedfor the moment. |
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| Keywords: | proportionalcounter gasmultiplicationformula reduCedelectricfieldstrength thefirsTownsendcoefficient |
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