Radiation modification of the uranium complexes in LiF crystals

Time-resolved pulse spectrometry method has been used to research uranium emission in LiF crystals. The spectral-kinetic parameters of uranium photoluminescence for LiF (U) crystals with intentional LiOH doping irradiated in a wide absorbed dose interval 5.101-1.106 Gy have been researched for the first time. The effect of the ionizing radiation dose on the relative population and lifetime of the emitting states of the uranium complex has been found for LiF (U) crystals with co-activator alone. The uranium emitting complex in LiF (U) crystal without intentional LiOH co-doping possesses spectral-kinetic characteristics which cannot be affected by the absorbed radiation dose up to 106 Gy.