Temperature gradient technique (TGT) growth and characterizations of large-sized Ce-doped YAG scintillation crystal

A good-quality Cc: YAG scintillation crystal with a diameter of 3 inches has been grown by temperature gradient technology (TGT) for the first time. The longitudinal distribution of cerium ions in the TGT-Ce:YAG crystal was measured by the ICP-AES method. The absorption spectrum in the range of 190-800 nm and the X-ray excited luminescence (XEL) of the as-grown Ce:YAG crystal were measured at the room temperature. The four typical absorption bands corresponding to internal 4f-5d transitions in Ce3+ ions, and the emission peak centered at 550 nm with the F-2(5/2)-F-2(7/2) ground state splitting were found in the absorption and XEL spectra. (C) 2003 WILEY-VCH Verlag GmbH & Co. KGaA. Weinheim.