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Temperature gradient technique (TGT) growth and characterizations of large-sized Ce-doped YAG scintillation crystal
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2003
Year
Materials ScienceOptical MaterialsX-ray SpectroscopyCe3+ IonsEngineeringOptical PropertiesSpectroscopyNatural SciencesApplied PhysicsTemperature Gradient TechniqueCrystal Growth TechnologyScintillatorLuminescent GlassYag Scintillation CrystalChemistryCrystallographyCerium IonsX-ray Fluorescence
A good-quality Ce: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 2F5/2–2F7/2 ground state splitting were found in the absorption and XEL spectra. (© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)