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 500 nm 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 PbWO 4:Mo. Wavelength-resolved thermally stimulated luminescence data (10-300 K) provides complementary information about trapping states and is correlated to photoluminescence decay kinetics.
Pazzi, G., Fabeni, P., Susini, C., Nikl, M., Bohacek, P., Mihokova, E., et al. (2004). Recombination luminescence in lead tungstate scintillating crystals. RADIATION MEASUREMENTS, 38(4-6), 381-384 [10.1016/j.radmeas.2004.02.022].
Recombination luminescence in lead tungstate scintillating crystals
Vedda, AG;Martini, M;
2004
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 500 nm 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 PbWO 4:Mo. Wavelength-resolved thermally stimulated luminescence data (10-300 K) provides complementary information about trapping states and is correlated to photoluminescence decay kinetics.
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