Energy Dependence of Correlated Recovery in Stage I of Al and Cu

Abstract

The recovery of the $I_D$ substage of aluminum and copper is examined in terms of a diffusional treatment based on correlated recovery. A theoretical expression is obtained which describes the annealing and includes an easily determined parameter which characterizes the initial distribution function. Theoretical calculations are compared with data obtained from a wide range of atomic recoil energies. Values are also computed for the initial distribution and the average separation of interstitials around their vacancies for various irradiation energies.