Ce}:(Lu, Y) 3(Ga, Al) 5O 12 single crystals were grown by the μ-PD method with RF heating system. In these crystals, Ce 3+ 4f-5d emission is observed within 500-530 nm wavelength. Emission peak shifts to shorter wavelength and the decay accelerates with increasing Ga concentration. In the case of Ce: (Lu 2 Y 13(Ga, Al) 5O 12 series, the Ce0.2% Lu 2Y 1Ga 3Al 2O 12 crystal showed the highest emission intensity. In order to determine light yield, the energy spectra were measured under 662 keV ã-ray excitation ( 137Cs source) and detection by an APD S8664-55(Hamamatsu). The light yield was calibrated from Fe 55 direct irradiation peak to APD. The light yield of Ce0.2%: Lu 2Y 1Ga 3Al 2O 3 sample was of about 30,000 photon/MeV. Dominant scintillation decay time was of about 50 ns.
- solid scintillation detectors
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering