Аңдатпа
The effect thermal annealing has on F and F n centers in LiF crystals irradiated by Kr ions with an energy of 150 MeV is studied with allowance for fluence and ionic currents. It is found that annealing at a temperature of 400 K using crystals irradiated at a fluence of ≥1013 iom/cm2 reduces the concentration of F centers (due to annihilation with H centers) and raises the concentration of complex F n centers.