Interstitial trapping by Ni, Ag, in impurities in electron irradiated copper

Abstract
Samples of copper, pure and alloyed with very small amounts of Ni, Ag, In impurities have been submitted to isochronal recovery between 10K and 60K after low temperature electron irradiation. The capture radii of the self interstitial atoms by the impurities are found: R Ni ∽ 0, R Ag = 1, R In = 1.5 in units of rv, the average vacancy capture radius for migrating self-interstitials.