Optically Induced Effects in the Thermoluminescence of Dosimetric Anion-Defective Corundum Crystals

This paper considers the influence of light fluxes in the 200–600-nm spectral range on the thermally stimulated luminescence (TL) of TLD-500 radiation detectors based on anion-defective corundum crystals. It has been shown that the luminescent-storing action of light in the above spectral range is due to the optical ionization of F-centers and electronic trapping centers of carriers responsible for the dosimetric peak at 450 K and TL at higher temperatures. The features of the dosimetric information distortion depending on the initial state of population of deep traps and the spectral composition and power of optical radiation are discussed.