Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Measurement of the radon and thoron exhalation rates from the water surface of Yixin lake

  • Jiulin Wu (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Shuaibin Liu (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Tao Hu (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Fen Lin (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Ruomei Xie (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Shuai Yuan (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Haibo Yi (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Yixiang Mo (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Jiale Sun (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Linquan Cheng (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Huiying Li (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Zhipeng Liu (College of Physics and Electronic Engineering, Hengyang Normal University) ;
  • Zhongkai Fan (School of Nuclear Science and Technology, University of South China) ;
  • Yanliang Tan (College of Physics and Electronic Engineering, Hengyang Normal University)
  • Received : 2023.03.11
  • Accepted : 2023.12.17
  • Published : 2024.04.25
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Abstract

The importance of determining the radon exhalation rate from water surface is emphasized by the increased use of radon and its daughter products as tracers in large-scale circulation studies of the atmosphere. There were many methods to measure radon exhalation from water surface. With the development of radon exhalation rate measurement methods and instruments on the surface of the soil, the rock and building materials, so the radon exhalation rate from water surface can be more accurately measured by applying these improved methods and instruments. In this paper, a cuboid accumulation chamber surrounded by foam boards and a RAD7 were used to measure the radon exhalation rate on the water surface at three different positions by Yixin lake. Each measurement was performed 2 h. The radon exhalation rate from the water surface was about 6 × 10-3 Bq m-2s-1. The thoron exhalation rate from the water surface also can be estimated, it is about 0.16 Bq m-2s-1. These results hint that the radon transmission from the lake bottom soil to water and then into the atmosphere.

Keywords

Acknowledgement

This work was supported by Postgraduate Scientific Research Innovation Project of Hunan Province (Grant No. CX20221289, CX20231259), Natural Science Foundation of Hunan Province (Grant No.2023JJ50091), Key Projects of Hunan Provincial Department of Education(Grant No.23A0516).

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