Scintillation properties of SrHfO3 : Ce3+ and BaHfO3 : Ce3+ ceramics

In this paper we report on the scintillation properties of cerium doped strontium-and barium hafnate. Radiolurhinescence, pulse height, scintillation decay and timing spectra are presented. Radioluminescence spectra of SrHfO3:Ce3+ and BaHfO3:Ce3+ consist of a broad band due to Ce3+ emission peaking at 410 nm and 400 Inn, respectively. The light yield of BaHfO3 :Ce3+ and SrHfO3:Ce3+ is approximately 40 000 photons/MeV when compared to a crystal of BGO. The principal decay time constant for SrHfO3:Ce3+ and BaHfO3:Ce3+ is 42 and 25 ns, respectively. A timing resolution of 276 ps (FWHM) was obtained with transparent optical ceramic of SrHfO3:Ce3+.