Recovery of Deuteron-Irradiated Gold, Aluminum, and Platinum

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Abstract
A previous paper described the influence of various preirradiation treatments on damage production by deuteron irradiation in gold, aluminum, and platinum. This paper describes the influence of these treatments on the recovery up to room temperature of gold and aluminum and up to 800°K of platinum. In aluminum and gold, except for very small irradiations, both cold work and alloying reduce the amount of recovery in stage I. The damage retained in treated aluminum anneals in stage III, where complete recovery takes place. Cold work reduces and alloying increases the center temperature of stage III in gold. In platinum stage I recovery is increased by quenching, especially for small irradiations; stage III recovery is also increased. The effects of pre-irradiation treatment on radiation annealing and thermal annealing are discussed in terms of the interaction of long-range transport events with lattice defects. Specifically, it is proposed that damage enhancement in quenched platinum is caused by the deflection of dynamic crowdions by atoms relaxed toward single vacancies.