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  • Title: Modeling and experimental examination of water level effects on radon exhalation from fragmented uranium ore.
    Author: Ye YJ, Dai XT, Ding DX, Zhao YL.
    Journal: J Environ Radioact; 2016 Dec; 165():219-226. PubMed ID: 27770700.
    Abstract:
    In this study, a one-dimensional steady-state mathematical model of radon transport in fragmented uranium ore was established according to Fick's law and radon transfer theory in an air-water interface. The model was utilized to obtain an analytical solution for radon concentration in the air-water, two-phase system under steady state conditions, as well as a corresponding radon exhalation rate calculation formula. We also designed a one-dimensional experimental apparatus for simulating radon diffusion migration in the uranium ore with various water levels to verify the mathematical model. The predicted results were in close agreement with the measured results, suggesting that the proposed model can be readily used to determine radon concentrations and exhalation rates in fragmented uranium ore with varying water levels.
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