Using electrical resistivity mcasurements the recovery in stage I of electron irradiated Pt has been studied. The influences which exert a large variation of irradiation dose, electron energy, radiation doping and doping with dilute concentrations of Au-atoms on the annealing structure were investigated. The recovery in substages IA, IB and IC is not influenced by irradiation dose and doping agents in agreement with the model of close Frenkel-pair recombination in these stages. Substage IE is strongly and substage ID is moderately modified by variation of radiation dose and the addition of doping agents. This and the equal values of the activation energies measured in substage ID and IE confirm the model of correlated and uncorrelated recovery of free migrating interstitials in these stages.

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