Abstract

Nd 1mol% doped (Lu, Gd)3(Ga, Al)5O12 (LGGAG) single crystals were grown by the micro-pulling down (μ-PD) method. Luminescence and scintillation properties such as absorption, excitation and emission spectra, light yield and decay time were evaluated. Nd1%:Lu3Al5O12 showed the highest light output of around 8200 photons/MeV among the grown crystals. Scintillation decay time of Nd:Y3Al5O12 was 1.32μs (36%) 2.02μs (64%). Nd:Lu3Ga3Al2O12 was relatively high dense scintillator of 7.38g/cm3 with good light yield of 6800 photons/MeV and scintillation decay time of 0.20μs (5%) 2.60μs (95%).

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