溢流式驻极体水氡浓度测量方法与装置

doi:10.7538/tws.2016.29.04.0241

同位素 ›› 2016, Vol. 29 ›› Issue (4): 241-247.DOI: 10.7538/tws.2016.29.04.0241

• 放射性同位素及放射源 • 上一篇下一篇

溢流式驻极体水氡浓度测量方法与装置

张辉¹;邓君²;徐乐昌¹;李先杰¹

1.核工业北京化工冶金研究院北京101149；2.中国疾病预防控制中心辐射防护与核安全医学所北京100088

出版日期:2016-11-20 发布日期:2016-11-21

The Approach and Device for Water Radon Measurement with Overflowing Electret

ZHANG Hui¹;DENG Jun²;XU Le-chang¹;LI Xian-jie¹

1.Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101149, China;2.National Institute for Radiological Protection, China CDC, Beijing 100088, China

Online:2016-11-20 Published:2016-11-21

摘要/Abstract

摘要：

针对目前国内水氡浓度“原样”测量面临的困难，本研究提出一种溢流式驻极体水氡浓度测量方法与装置，采用E-perm驻极体与离子腔组合形成电离腔作为氡探测器，将稳定含氡水流以固定流量缓慢流经4 L扩散腔，底部采用固定流量氮气流强化曝气，水中氡在氮气扰动下进入缓冲罐混合，将驻极体悬挂于4 L玻璃罐中部，采用驻极体测量罐子中气体氡浓度方式测量连续水流平均氡浓度，同时采用了RAD7-H2O套件对水中浓度对比测量。结果显示，水氡浓度4～97 Bq/L范围内三种方法一致性良好。

关键词: 驻极体, 水氡, 辐射防护

Abstract:

To solve the difficulties in “original” radon concentration measuring, this paper proposed an overflow type electret radon concentration measurement method and device. A 4 L jar was applied as ionization chamber and E-perm electret was applied as radon detector. When the steady radon contaminated water flowed through the ionization chamber, water radon was released with the nitrogen aerating disturbance. The average radon concentration was detected by the E-perm electret. Furthermore, RAD7-H2O kit was used to measure the radon concentration for comparison. The results showed that different methods had well consistency with the water radon concentration in the range of 4 to 97 Bq/L.

Key words: electret, radon in water, radiation protection

张辉;邓君;徐乐昌;李先杰. 溢流式驻极体水氡浓度测量方法与装置[J]. 同位素, 2016, 29(4): 241-247.

ZHANG Hui;DENG Jun;XU Le-chang;LI Xian-jie. The Approach and Device for Water Radon Measurement with Overflowing Electret[J]. Journal of Isotopes, 2016, 29(4): 241-247.

参考文献

［1］潘自强. 中国辐射水平［M］. 北京：原子能出版社,2010.
［2］王海峰. 地浸采铀技术在我国应用中存在的问题［J］. 铀矿冶,2008,27(3):113-117.Wang Haifeng. The existing problems on in-situ leaching of uranium in China［J］. Uranium Mining and Metallurgy, 2008, 27(3):113-117(in Chinese).
［3］武云云,尚兵,刘建香,等. 快速水氡测量方法的研究［J］. 中国医学装备,2016,13(5):126-129.Wu Yunyun, Shang Bing, Liu Jianxiang, et al. The research on a rapid measuring method for radon in water［J］. China Medical Equipment, 2016, 13(5): 126-129(in Chinese).
［4］张子广,张素欣,孙佩卿,等. 水氡与气氡动态的对比分析［J］. 华北地震科学,2004,22(3):1-6.Zhang Ziguang, Zhang Shuxin, Sun Peiqing, et al. Comparative analysis on the dynamic state of water radon and gas radon［J］. North China Earthquake Sciences, 2004, 22(3): 1-6(in Chinese).
［5］Gervino G, Bonetti R, Cigolini C, et al. Environmental radon monitoring: comparing drawbacks and performances of charcoal canisters, alpha-track and E-PERM detectors［J］. Nuclear Instruments & Methods in Physics Research, 2004, 518(1): 452-455.
［6］Smith J M, Poppell S W, Singletary H M, et al. A summary of the national radon measurement proficiency program and associated test facilities［J］. Radiat Prot Dosimetry, 1992, 45(1-4): 61-64.
［7］Kotrappa P. Long term stability of electrets used in electret ion chambers［J］. Journal of Electrostatics, 2008, 66(s 7-8): 407-409.
［8］Espinosa G, Golzarri J I, Martínez T, et al. Indoor ²²⁰Rn and ²²²Rn concentration measurements inside the Teotihuacan pyramids using NTD and E-PERM methodologies［J］. Radiation Measurements, 2005, 40(s2-6): 646-649.
［9］王攀,杨明理,张伟,等. 自检校正用氡箱的研制［J］. 辐射防护,2014,34(5):315-318.
［10］Malik M F I, Rabaiee N A, Jaafar M S. Determination of radon concentration in water using RAD7 with RAD H2O accessories［C］∥AIP Conference Proceedings, 2015: 921-926.
［11］Kotrappa P. Review of E-perm passive integrating electret ionization chambers for measuring radon in air, radon in water and radon flux from surface and mill tailings［J］. Srinagarind Medical Journal, 2010: 9.

[1]	胡疏;吴鸣;杨红杰;成先义;高宙;陈俊辉. 肿瘤放射性粒子植入术后病区工作人员辐射防护的再认识[J]. 同位素, 2016, 29(1): 30-35.
[2]	作者. 辐射工作场所改造中的辐射防护与质量控制[J]. 同位素, 2005, 18(3 ): 189-189 .
[3]	作者. ~(18)F-FDG制备及应用中的辐射防护评价[J]. 同位素, 2004, 17 (3 ): 183-183 .
[4]	作者. 加强核医学辐射防护工作的管理 [J]. 同位素, 1996, 9 (3 ): 185-188 .
[5]	作者. 60Co辐照装置运行的辐射防护评价 [J]. 同位素, 1996, 9 (2 ): 60-64 .
[6]	作者. 光子周围剂量当量换算系数验算与插值 [J]. 同位素, 1995, 8 (1 ): 21-26 .

溢流式驻极体水氡浓度测量方法与装置

The Approach and Device for Water Radon Measurement with Overflowing Electret

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

编辑推荐

Metrics