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| 222Rn/220Rn子体测量方法与仪器比较 | |
| 引用本文： | 刘艳阳,尚兵,周青芝,武云云.222Rn/220Rn子体测量方法与仪器比较[J].辐射防护,2012,32(1):53-59,64. |
| 作者姓名： | 刘艳阳 尚兵 周青芝 武云云 |
| 作者单位： | 1. 中国原子能科学研究院,北京,102413 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 3. 南华大学核工程与核技术学院,湖南衡阳,421001 |
| 摘 要： | 在小型氡混合室对抓取测量、连续测量和累积测量三种方法及仪器测量结果进行了比较。与优化五段法相比,对于222Rn平衡当量浓度,BWLM连续测量仪和24 h累积探测器测量结果分别高出其31%和29%,Wlx仪偏低20%左右;对于220Rn平衡当量浓度,FJ414-142低本底闪烁探测器和KF-602D氡子体测量仪的测量结果分别偏高86%和18%,BWLM连续测量仪和24 h累积探测器测量结果分别偏高28%和36%,Wlx仪偏低5%左右。对于这几种方法和仪器测量数据之间的差异,须进一步研究。 |
| 关 键 词： | 222Rn子体 220Rn子体 抓取测量 连续测量 累积测量 |
Comparison of Methods and Instruments for 222Rn/220Rn Progeny Measurement |
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| Liu Yanyang,Shang Bing,Zhou Qingzhi,Wu Yunyun.Comparison of Methods and Instruments for 222Rn/220Rn Progeny Measurement[J].Radiation Protection,2012,32(1):53-59,64. | |
| Authors: | Liu Yanyang Shang Bing Zhou Qingzhi Wu Yunyun |
| Affiliation: | 1.China Institute of Atomic Energy,Beijing 102413; 2.National Institute for Radiological Protection,China CDC,Beijing 100088; 3.School of Nuclear Science and Technology,University of South China,Hunan Hengyang 421001) |
| Abstract: | In this paper,comparisons were made among three methods of measurement(grab measurement,continuous measurement and integrating measurement) and also measurements of different instruments for a radon/thoron mixed chamber.Taking the optimized five-segment method as a comparison criterion,for the equilibrium-equivalent concentration of 222 Rn,measured results of BWLM and 24 h integrating detectors are 31% and 29% higher than the criterion,the results of Wlx, however,is 20% lower;and for 220 Rn progeny,the results of FJ414-142,KF-602D,BWLM and 24 h integrating detector are 86%,18%,28% and 36% higher than the criterion respectively,except that of WLx,which is 5% lower.For the differences shown,further research is needed. |
| Keywords: | 222 Rn progeny 220 Rn progeny grab sample measurement continuous measurement integrating measurement |
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