Abstract
AbstractA method which permits to determine the diffusion coefficient of helium in metals from the measurements of the time dependence of the intensity of annihilation radiation has been outlined. The diffusion of helium cold‐rolled and cold‐rolled and annealed nickel has been investigated. It has been found that the value of the diffusion coefficient of helium along the grain boundaries and dislocations in nickel is of the order of 10−13 cm2 s−1.
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