Influence of changes in the density of a solid on the diffusion mobility of atoms under bombardment by high-power nanosecond charged particle beams

A theoretical analysis is made of the behavior of the diffusion coefficient of a metal having a nonequilibrium density as a result of the action of high-power nanosecond radiation fluxes. It is shown that a reduction in the density of the sample as a result of thermomechanical processes substantially increases the diffusion mobility of the atoms.

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