Application of Positron Annihilation Method for the Study of Radiation Defects and Defects Formed in Other Ways. Final Report for the Period December 1981 - December 1985

摘要

The radiation effects in ionic crystals (LiF, CaF2, BaF2 and AgCl) were studied using three positron annihilation techniques: Doppler broadening, life-time measurements and three-gamma annihilation. The irradiation with determined doses of gamma-rays was performed at controlled temperatures, and following specified annealing conditions. The measurements were also made at different temperatures. Different behaviour was observed for ionic crystals of different composition. The results were compared with observations made by other techniques, and with theoretical models. 55 refs, 61 figs, 11 tabs. (Atomindex citation 19:003181)