Concentration dependence on scintillation properties of BaCl2:Yb 2:Yb transparent ceramics prepared by SPS method

We developed BaCl2:Yb 2 :Yb transparent ceramics by the spark plasma sintering method and evaluated their optical and scintillation properties. An emission peak in the photoluminescence and scintillation spectra was observed at 440 nm due to the spin-forbidden 4f135d1-4f14 13 5d 1 -4f 14 transition of Yb2+. 2 + . The afterglow levels of the BaCl2:Yb 2 :Yb transparent ceramics were lower than those of a commonly used inorganic scintillator CsI:Tl and CdWO4. 4 . The scintillation light yield of the 0.5% doped BaCl2:Yb 2 :Yb transparent ceramic was 2400 ph/MeV under 137 Cs gamma-ray irradiation, and the value is low in comparison with those of other Yb-doped halide materials.