Kinetics of accumulation of irradiation-induced defects under deep electron irradiation of alloys Pb1-xSnxSe

The kinetics of the variation in electron concentration for electron-irradiated n-Pb1-xSnxSe (x = 0.2, 0.25) alloys in the vicinity of the metal-insulator transition induced by electron irradiation has been investigated. By comparing the experimental and theoretical dependencies of electron concentration versus radiation flux the main parameters of the energy spectrum for irradiated alloys were determined. It has been shown that agreement between theoretical and experimental data may be achieved only under assumption that the rate of defect formation process decreases with increasing the radiation flux