RADIATION EFFECT OF HOME-MADE STAINLESS STEEL STUDIED BY POSITRON ANNIHILATION

The heavy ion irradiation is used for the first time to simulate the radiation damage produced by reactor neutrons in home-made modified stainless steels. The produced radiation damage is investigated by the positron annihilation spectroscopy. No detectable radiation damage is observed in the home-made modified stainless steels irradiated by 81.6 MeV carbon ions to a total dose of 3.3×1016 cm-2 , indicating that the home-made modified stainless steel of this type has good radiation resistant properties.