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
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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
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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
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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/
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