Study on the Influence of Radon Collector Parame
American Journal of Physics and Applications
Volume 7, Issue 4, July 2019, Pages: 109-117
Received: Jul. 22, 2019;
Accepted: Aug. 14, 2019;
Published: Sep. 2, 2019
Views 666 Downloads 168
Shangting Jiang, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Jian Shan, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Hui Yang, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Jinglin Li, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Songsong Li, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Tao Guo, Institute of Nuclear Science and Technology, Nan Hua University, Hengyang, China
Follow on us
Accurate measurement of radon exhalation rate of building materials plays an important role in controlling indoor radon concentration. In order to achieve rapid and accurate measurement of radon exhalation, the influence of the volume, base area and pumping flow rate of radon collector on radon exhalation rate was studied to optimize the measurement parameters of radon exhalation rate and improve the measurement efficiency of radon exhalation rate. The study has shown that the larger the volume of radon collector is, the longer the radon concentration equilibrium time will be when radon exhalation rate is measured with constant pumping flow rate and surface precipitation rate, while the influence of the volume of radon collector on the equilibrium radon concentration can be neglected, but there is a specific linear relationship between the equilibrium radon concentration and the base area of radon collector. When the radon exhalation rate is measured with constant volume and base area of radon collector, the higher the pumping flow rate is, the shorter the radon concentration equilibrium time is and the smaller the equilibrium radon concentration is. When the radon exhalation rate is 3.9Bq∙m-2∙s-1 in the experiment, the optimum volume of radon collector is 2.1×10-3m3, the optimum base area is 3.46×10-2m-2, and the optimum pumping flow rate is 1.349×10-5m3/s. The measurement parameters of the radon exhalation rate, such as the best volume and base area of radon collector and the pumping flow rate can be obtained for different radon exhalation rates through this optimization method.
Radon Exhalation Rate, MATLAB Simulation, Radon Collector, Pumping Flow Rate
To cite this article
Study on the Influence of Radon Collector Parame, American Journal of Physics and Applications.
Vol. 7, No. 4,
2019, pp. 109-117.
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
UNSCEAR. Sources and effects of ionzing radiation [R]. Sweden UNSCEAR, 2000.
Chen Ling, Pan Ziqiang, Liu Lin, et al. Preliminary investigation and study of 222Rn and 220Rn levels in China's underground coal mines [N]. Annual Report of China Institute of Atomic Energy, 2005: 234-235.
Guogang Jia, M. Belli, M. Blasi, et al. Determination of 210Pb and 210Po in mineral and biological environmental samples [J]. Journal of Radioanalytical and Nuclear Chemistry, 2001, 247 (3): 491-499.
Shang Bing, He Qinghua, Wang Zuoyuan, Zhu Changshou. Study on the level of indoor radon action in China [J]. Chinese Journal of Radiological Medicine and Protection, 2003, 23 (6): 462-465.
Xiao Detao, Zhao Guizhi, Xiao Yongjun, Ma Guangnao. 220Rn cumulative measurement of absorption volume method and its application [J]. Nuclear Techniques, 2005, 28 (9): 688-692.
Zhao Changyou. Thorium and Uranium in Bayan Obo [J]. Rare Earth Information. 2006, (7): 12-15.
Xiao Detao, Liang Ganzhuang, Zhao Guizhi, Lingqiu. 220Rn's influence on the measurement of radon exhalation rate [J]. Atomic Energy Science and Technology, 2002, 36 (6): 543-547.
Zhang Qiang, Deng Yuequan, Dong Faqin, Xu Guangliang, Yang Rui, He Dengliang. Research status and Prospect of radon radiation pollution and protection of industrial waste base building materials [J]. Materials Review, 2007, 21 (10): 79-83.
Chen Ling, Xie Jianlun, Huanglong. Measurement of radon surface emission rate and consideration of related factors [J]. Radiation Protection Bulletin, 1998, 18 (6): 28-36.
Yang Yaxin, Wu Xinmin, Wu Yamei, et al. Experimental study on the determination of radon exhalation rate by double filtration membrane method [J]. Bulletin of Science and Technology, 2001, (1): 38-42.
Guo Qiuju, Cheng Jianping. The measurement of 222Rn and 220Rn daughter levels in ambient air and soil precipitation rate in Zhuhai [J], Radiation Protection, 2004, 24 (2): 110-115.
Zhang Wentao, Li Aiwu, Zhang Zhilong, Gou Quanlu. Development of REM-II Radon Exhalation Rate Instrument [J]. Nuclear Electronics & Detection Technology, 2002, 22 (2): 149-151.
Piotr Szajerski, Joanna Celinska, Henryk Bem, Andrzej Gasiorowski, Rafal Anyszka, Piotr Dziugan. Radium content and radon exhalation rate from sulfur polymer composites (SPC) based on mineral fillers [J]. Construction and Building Materials, 2019, 20 (2): 390-398.
Yan Liu, Jimian Zhang, Jiulin Yuan, et al. Effect of Pressure on Radon Exhalation Rate from Medium Surface [J]. Radiation Hygiene in China, 2018, 27 (06): 54-56.
Yongjun Ye, Hanguan Wen, Xiangyan Li, et al. Grey Correlation Analysis of Radon Exhalation Rate and Environmental Factors in Uranium Tailings Beach [J]. Industrial Safety and Environmental Protection, 2018, 44 (04): 100-102+107.
Jagadeesha B G, Narayana Y. Effect of Grain Size on Radon Exhalation Rate in the Soils of Hassan District of Southern India [J]. Radiochemistry, 2018, 60 (3): 328-333.