Abstract

The heavy ion irradiation simulation of neutron and/or proton irradiation has been verified experimentally by the detailed study of radiation damage in α- Al 2 O 3 irradiated at the equivalent dose by 5.28×1015 cm -285 MeV 19 F ions and by 3×1020 cm -2 En≥1 MeV neutrons, respectively. The radiation damage created by irradiation was examined by a positron annihilation lifetime technique. The positron annihilation parameters of lifetime and intensity obtained for both irradiations in α- Al 2 O 3 are all in good agreement. This demonstrates that the heavy ion irradiation can well simulate the neutron and/or proton irradiation.

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