Special Features of the Preliminary γ-Irradiation Influence on Photoluminescence of Multi-Component Silicate Glasses

In multi-component silicate glasses, under the UV-excitation, time-resolved luminescence spectra were observed. These spectra occupied the region of 350–700 nm. The dynamics of changes in radiation induced absorption and spectral-kinetic characteristics of luminescence of γ-irradiation glasses at the expiry of prolonged time were studied. It is assumed that the luminescence in these glasses is caused by quasi-molecular compelxe centers which include the elements of base substance and impurity atom. These centers can appear in the glass both in the process of its melting and under the action of ionizing radiation. It is shown that, the centers of different origin are characterized by different spectral-kinetic properties of their photoluminescence.