LuminescencePropertiesofCe3+∶YAGSingleCrystalScintillatorunderVacuumUltravioletExcitation

Ce （3+） doped Y3Al5O12 (Ce （3+）∶YAG) single crystal is an good scintillator due to its excellent thermal,mechanic and scintillant performances. In this paper,its vacuum ultraviolet and fluorescence spectra using the synchrotron radiation as the excitation source was studied. The ultraviolet-visible excitation and absorption spectra of Ce （3+）∶YAG were also measured. The excitation energy transfer process and the luminescent differences under direct excitation into the 5d bands of Ce （3+） and excitation of valence band in Ce （3+）∶YAG scintillator were studied.