Zusammenfassung
Yttrium-gadolinium pyrosilicate ((Y2-xGdx)Si2O7) single crystals with different ratios of yttrium to gadolinium (x = 0.1-1.9) and 2% Ce-dopant were successfully synthesized using the floating-zone method. In this work, photoluminescence (PL) and scintillation properties of 2% Ce-doped (Y2-xGdx)Si2O7 were investigated. The conducted experiments included PL decay time and emission, X-ray-induced ...
Zusammenfassung
Yttrium-gadolinium pyrosilicate ((Y2-xGdx)Si2O7) single crystals with different ratios of yttrium to gadolinium (x = 0.1-1.9) and 2% Ce-dopant were successfully synthesized using the floating-zone method. In this work, photoluminescence (PL) and scintillation properties of 2% Ce-doped (Y2-xGdx)Si2O7 were investigated. The conducted experiments included PL decay time and emission, X-ray-induced decay time and scintillation spectra, an afterglow analysis, as well as the total scin-tillation light yield by gamma-ray-irradiation pulse-height spectra. Interesting results were including the considerably low afterglow at 20 ms of 40-65 ppm compared to commercial scintillator materials on the market like CdWO4. Further, the high light yield of 21,800 ph/MeV was achieved in Y0.5Gd1.5Si2O7 under 662 keV (137Cs) gamma-ray-irradiation.
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