Scintillation and dosimeter properties of CaF2 translucent ceramic produced by SPS

We have developed CaF2 translucent ceramics by spark plasma sintering (SPS) and investigated the scintillation and dosimeter properties, in comparison with a CaF2 single crystal. Under X-ray irradiation, light emission was observed at 270 and 300 nm, due to self-trapped exciton (STE). The scintillation light yield of CaF2 translucent ceramic was measured to be about 6000 photons/MeV under 137Cs irradiation, and this value was smaller than that...