氡子体浓度准确测量方法研究

辐射防护 ›› 2014, Vol. 34 ›› Issue (5): 297-303.

氡子体浓度准确测量方法研究

阿不都莫明·卡地尔¹, 张磊², 郭秋菊¹

1.北京大学物理学院核物理与核技术国家重点实验室,北京 100871;
2.防化研究院,北京 102205

收稿日期:2013-10-22 出版日期:2014-09-20 发布日期:2025-01-06
通讯作者: 郭秋菊。E-mail:qjguo@pku.edu.cn
作者简介:阿不都莫明·卡地尔(1984—),男,北京大学物理学院技术物理系辐射防护与环境保护专业博士研究生。
基金资助:
国家自然科学基金资助项目(11075009)。

Study on the Accurate Measurement Method of Radon Progeny Concentration

Abdumomin Kadir¹, Zhang Lei², Guo Qiuju¹

1. Department of Technical Physics, School of Physics, Peking University, Beijing 100871;
2. Research Institute of Chemical Defense, Beijing 102205

Received:2013-10-22 Online:2014-09-20 Published:2025-01-06

摘要/Abstract

摘要： 氡子体浓度准确测量方法研究是建立氡子体浓度测量参考基准的基础,对氡子体行为规律研究和环境氡暴露评价研究亦有重要意义。通过回顾氡子体浓度测量方法的发展趋势,在提出效率指标(测量总时间和计算得到的潜能浓度标准误差乘积的倒数)的基础上,结合理论计算和实验结果可知:采用α能谱法的氡子体浓度测量方法要优于α计数法;多时间段测量、最小二乘法数据处理的氡子体浓度测量方法要优于传统的“三段法”或“五段法”。多时间段α/β能谱同时测量、加权最小二乘法数据处理将是未来氡子体浓度准确测量的发展方向。

关键词: 氡子体, 准确测量, α能谱法, 最小二乘法

Abstract: Study on the accurate measurement method of radon progeny is essential for establishing measurement standards of radon progeny concentration and for verification of commercial radon progeny measuring devices and it is important for studying radon progeny behavior and environmental radon exposure assessments. In this paper, based on radon progeny measuring principles, a study was conducted about the development rules and trends of radon progeny measurement methods by reviewing the development history of radon progeny measurement and comparing some commonly used measuring methods. The comparison results indicate that for the accurate measurement, α spectroscopic method is better than gross α method; Multi-period counting and Least-square calculating method is better than traditional three-count of five count method. Multi-period and simultaneous counting of α plus β spectra and weighted least-square calculation might be the future of the accurate measurement of radon progeny.

Key words: radon progeny, accurate measurement, α spectroscopic method, least-square method

中图分类号:

R144.1

阿不都莫明·卡地尔, 张磊, 郭秋菊. 氡子体浓度准确测量方法研究[J]. 辐射防护, 2014, 34(5): 297-303.

Abdumomin Kadir, Zhang Lei, Guo Qiuju. Study on the Accurate Measurement Method of Radon Progeny Concentration[J]. RADIATION PROTECTION, 2014, 34(5): 297-303.

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