Concentration dependence of dosimetric properties in Ce-doped silicate glasses synthesized by the spark plasma sintering method

We synthesized SiO(2)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 Ce(3+)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 Ce(3+)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.