Geodesic
In-situ measuring method of radon and thoron diffusion coefficient in soil
Vestnik KRAUNC. Fiziko-matematičeskie nauki, no. 1 (2014), pp. 81-85 Cet article a éte moissonné depuis la source Math-Net.Ru

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A simple and valid in-situ measurement method of effective diffusion coefficient of radon and thoron in soil and other porous materials was designed. The analysis of numerical investigation of radon and thoron transport in upper layers of soil revealed that thoron flux density from the earth surface does not depend on soil gas advective velocity and varies only with diffusion coefficient changes. This result showed the advantages of thoron using versus radon using in the suggested method. The comparison of the new method with existing ones previously developed. The method could be helpful for solving of problems of radon mass-transport in porous media and gaseous exchange between soil and atmosphere.
Mots-clés : radon, diffusion coefficient
Keywords: thoron, soil, in-situ method, flux density. 
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V. S. Yakovleva. In-situ measuring method of radon and thoron diffusion coefficient in soil. Vestnik KRAUNC. Fiziko-matematičeskie nauki, no. 1 (2014), pp. 81-85. http://geodesic.mathdoc.fr/item/VKAM_2014_1_a9/

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