Scintillation and thermally stimulated luminescence properties of Ce-doped SrO–Al2O3–SiO2 glasses

Abstract

45SrO–5Al2O3–50SiO2 glasses doped with various concentrations of Ce (0, 0.01, 0.05, 0.1, and 0.5 mol%) were synthesized by the conventional melt-quenching methods, and the basic optical, scintillation, and thermally stimulated luminescence (TSL) properties were investigated. Regarding the optical properties, under 340 nm excitation, the emission peak around 420 nm of the Ce-doped glasses was confirmed. The emission would be due to the 5d → 4f transitions of Ce3+. In contrast, the scintillation spectra of all the glasses showed two emission peaks around 350 and 400 nm, and the origins would be some defects or impurity ions included in the host glass. By 241Am 5.5 MeV α-ray irradiation, the non-doped glass showed the highest light yield, which was 69 photons/MeV with a typical error of ± 10%. As the TSL properties, the TSL intensity of 0.01% Ce-doped glass was the highest among the prepared glasses, and a linear response to the irradiation dose was confirmed in the dose range of 0.01–1000 mGy.