Abstract

The paper presents the results of studies of the radiophotoluminescence (RPL) of LiB3O5:Ag glass after irradiation with γ-rays in the dose range of 1-3 Gray on the remote γ-therapeutic apparatus "TERAGAM" Co(60) at the Lviv Oncology Regional Medical and Diagnostic Center. A clear dependence of the intensity of the RPL (λmax= 300 nm) on the dose value when excited by light λexc = 220 nm was found. The mechanism of RPL in γ-irradiated LiB3O5:Ag glass is proposed as a consequence of radiation annihilation with the emission of relaxed exciton-like electronic excitationswith the participation of impurity defects (Ag0 ) in the glass structure.