Study on the influence of sampling methods for measuring soil radon exhalation rates
文献类型：期刊论文
| 作者 | Yang, Yufeng ; Lv, Lidan; Qiu, Shoukang; Guan, Tingyu; Guo, Cong; Tang, Quan
|
| 刊名 | Radiation Measurements
 |
| 出版日期 | 2022 |
| 卷号 | 159页码:106880 |
| ISSN号 | 13504487 |
| DOI | 10.1016/j.radmeas.2022.106880 |
| 文献子类 | Article |
| 英文摘要 | Soil is the primary source of radon in the atmosphere, and soil radon exhalation rate (E) is a key indicator to evaluate the radon hazard in soil. Radon can also be used as a tracer to analyze atmospheric processes and monitor greenhouse gas emissions. Therefore, improving the accuracy of measuring E is significant for radon protection and radon pollution management as well as public health. In this study, three different sampling methods were compared to determine the most suitable sampling method for E measurement under different conditions. The results indicated that the closed-loop gas-flow method can be used to measure E and required correction for leakage and counterdiffusion; E was found to vary from 13.25 ± 1.44 to 30.46 ± 2.19 mBq·m−2 s−1. For the open-loop gas-flow method, a low sampling flow rate was selected, and the sampling flow rate derived from this experiment was less than 0.2 l min−1; E varied from 36.11 ± 0.99 to 52.67 ± 1.68 mBq·m−2 s−1. For the activated-carbon adsorption method, the counterdiffusion effect had a negligible influence on the measurement results, and the measurement error due to the uneven distribution of radon in the carbon layer could be eliminated by changing the waiting time for the measurement; the measurement showed E of about 23 mBq·m−2 s−1. Moreover, the influence of water absorption of the activated carbon on the measurement results should be considered, and the water absorption rate should be less than 9%. The obtained values will serve as a reference for the rapid and accurate measurement of E. © 2022 |
| 语种 | 英语 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/300293]  |
| 专题 | 高能物理研究所_加速器中心 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang, Yufeng,Lv, Lidan,Qiu, Shoukang,et al. Study on the influence of sampling methods for measuring soil radon exhalation rates[J]. Radiation Measurements,2022,159:106880. |
| APA | Yang, Yufeng,Lv, Lidan,Qiu, Shoukang,Guan, Tingyu,Guo, Cong,&Tang, Quan.(2022).Study on the influence of sampling methods for measuring soil radon exhalation rates.Radiation Measurements,159,106880. |
| MLA | Yang, Yufeng,et al."Study on the influence of sampling methods for measuring soil radon exhalation rates".Radiation Measurements 159(2022):106880. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。