Abstract
We have developed SrF2 translucent ceramic by using the spark plasma sintering (SPS) method, and investigated scintillation properties and thermally stimulated luminescence (TSL) glow curves, in comparison with a SrF2 crystal. Both of the samples showed scintillation with emission peaks at 300 nm under X-ray irradiation. Based on the scintillation decay times measured, the origin of emission at 300 nm was attributed to self-trapped excitation. The scintillation light yield of the SrF2 translucent ceramic was evaluated to be about 8900 photons/MeV under 57Co γ-rays. In addition, the afterglow level of the translucent ceramic was lower than that of the crystal.
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