| 空气氡浓度瞬时测量方法研究 |
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| 引用本文： | 丁卫撑,方方,阮菊红,王敏,黄秋.空气氡浓度瞬时测量方法研究[J].核技术,2009,32(7). |
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| 作者姓名： | 丁卫撑 方方 阮菊红 王敏 黄秋 |
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| 作者单位： | 成都理工大学地学核技术四川省重点实验室,成都,610059 |
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| 摘 要： | 针对目前空气氡浓度测量中存在的测量灵敏度低、测量时间长的缺点,对比研究及理论探讨后提出一种空气氡浓度瞬时测量方法.常压空气脉冲电离室对氡和其子体均有较高的探测效率,符合高灵敏度测量要求.在电离室内部加人氡及其子体收集装置实现空气中氡及其子体的快速抓样收集,克服了氡子体对电离室污染问题,符合瞬时测氡要求.通过实验初步验证了本文方案的可行性.
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| 关 键 词： | 电离室 氡 α粒子 测量 计数 |
A new method for consecutive measurement of air radon |
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| DING Weicheng,FANG Fang,RUAN Juhong,WANG Min,HUANG Qiu.A new method for consecutive measurement of air radon[J].Nuclear Techniques,2009,32(7). |
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| Authors: | DING Weicheng FANG Fang RUAN Juhong WANG Min HUANG Qiu |
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| Affiliation: | Key Laboratory of Applied Nuclear Technology in Geosciences;Chengdu University of Technology;Chengdu 610069;China |
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| Abstract: | The current methods for air radon measurement are often of low sensitivity, and the measurement takes longer time.In this paper, based on comparative study and theoretic discussion, we propose an ionization chamber for consecutive air radon measurement.The ionization chamber under ordinary pressure has high detective efficiency in measuring radon and its daughters.A collector unit is equipped for collecting residual radon and its daughters in a measurement.This prevents radon and its daughters from pollutin... |
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