Abstract

We synthesized SiO2 glasses doped with various concentrations of Ce by the spark plasma sintering (SPS) method, and evaluated optical, scintillation, and dosimetric properties. The Ce-doped specimens showed photoluminescence (PL) derived from Ce3+ ions at around 400 nm. The highest PL quantum yield was 86.2% among the prepared specimens. The PL lifetime ascribed to the emission from Ce3+ was 19.7–24.2 ns. A scintillation peak as well as the PL was observed due to Ce3+. In addition, optically-stimulated luminescence (OSL) and thermally-stimulated luminescence (TSL) spectra confirmed that the Ce-doped specimens showed the OSL and TSL caused by Ce3+, respectively. TSL glow curves with broad shape were observed in all the Ce-doped specimens, and the 0.1, 0.5, and 1% Ce-doped specimens showed linearly response from 0.1 to 100 mGy.

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