SPECIAL FEATURES OF THE PRELIMINARY GAMMA-IRRADIATION INFLUENCE ON PHOTOLUMINESCENCE OF MULTICOMPONENT SILICATE-GLASSES

In multi-component silicate glasses, under the UV-excitation, time-res olved luminescence spectra were observed. These spectra occupied the r egion of 350-700 nm. The dynamics of changes in radiation induced abso rption and spectral-kinetic characteristics of luminescence of gamma-i rradiation glasses at the expiry of prolonged time were studied. It is assumed that the luminescence in these glasses is caused by quasi-mol ecular compelxe centers which include the elements of base substance a nd impurity atom. These centers can appear in the glass both in the pr ocess of its melting and under the action of ionizing radiation. It is shown that, the centers of different origin are characterized by diff erent spectral-kinetic properties of their photoluminescence.