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We have measured photoluminescence properties of cerium-doped Gd3Al2Ga3O12 (Ce:GAGG) crystals at low temperatures with use of synchrotron radiation. Excitation spectra for the Ce3+ 5d–4f emission exhibit prominent peaks at Gd3+ intra-4f absorption bands. The Gd3+ intra-4f emission band is observed at 3.91eV, but is not in resonance with the lowest energy Gd3+ intra-4f absorption band at 3.95eV. The...
Eu doped LiSrAlF6 (Eu:LiSAF) crystals with various Eu concentrations were grown by a micro-pulling-down (μ-PD) method and the effects of Eu concentration control on crystal growth and scintillation properties for Eu:LiSAF crystals were investigated as a neutron scintillator. As-grown Eu0.3%:LiSAF crystal had no visible inclusion while milky parts were observed in the crystals with higher Eu contents...
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