摘要
Lu0.1Y0.9AlO3：Ce single crystals in dimensions Φ30×90 mma are successfully grown by the Czochralski method. The light output and energy resolution of the crystal in dimensions Φ14×2mm^3 are 9420 photons/MeV and 12.5% respectively. Dependence of the light output on the thickness of the sample is found and explained by the self-absorption in the range of 320-370nm and the underlying parasitic absorption around 250hm. In addition, the local enrichment of Ce ions and the presence of low-valent impurity ions may cause the deterioration of its light output. In addition, Lu0.1 Y0.9AlO3：Ce has an almost constant fluorescence decay time of 16ns in the temperature range of 80-373 K.
