Identification of defective Pt structure after neutron and ion irradiation

Abstract

The adequacy of the effect of radiation exposure of different types on the same material (Pt) has been established. For this purpose, radiation defects of one type were studied using field ion microscopy (FIM). The structure of defects was studied on an atomically clean surface and in the near-surface volume of platinum after bombardment with neutrons and ion beams (E > 0.1 MeV and E = 30 keV, respectively). It is shown that the interaction of fast neutrons (E > 0, 1 MeV, F = 6.7 • 1021 m-2, F = 3.5 • 1022 m-2) with platinum leads to certain radiation damage in the volume. The same defects are observed when irradiated with Ar+ ion beams (E = 30 keV, F = 6.7 • 1020 m-2). The latter were found at a depth of about 1.5-2 nm from the irradiated surface. Thus, analog modeling of neutron and ion irradiation with a substance was performed. © Published under licence by IOP Publishing Ltd.