Abstract

The problem of steady state diffusion of the decaying products resulting from the disintegration of a radioactive gas flowing through circular and flat channels is presented. Axial diffusion is neglected and a small diffusion parameter is assumed. Results are obtained for the axial displacement and density distribution of atoms deposited on the walls when the laminar flow is Poiseuille and plug. These results can be used to determine diffusion coefficients of disintegration products.

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