Abstract
Room temperature radioluminescence and photoluminescence decay kinetics measurements of Ba-doped PbWO4 crystals were compared with those of undoped and Mo-doped samples. Photoluminescence decay measurements focus on the coexistence of the immediate (fast) decay having a decay time of a few nanoseconds with slower delayed recombination decay processes. The radioluminescence emission peaking at 500nm in Ba-doped crystals is similar to that observed in Mo-doped samples. However, photoluminescence of the Ba-doped crystals shows much faster decay kinetics with respect to that of PbWO4:Mo. Wavelength-resolved thermally stimulated luminescence data (10–300K) provides complementary information about trapping states and is correlated to photoluminescence decay kinetics.
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