Luminescence and scintillation of Ce 3+-doped oxide glass with high Gd 2O 3 concentration
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Author list: Chewpraditkul W., He X., Chen D., Shen Y., Sheng Q., Yu B., Nikl M., Kucerkova R., Beitlerova A., Wanarak C., Phunpueok A.
Publisher: Wiley
Publication year: 2011
Journal: physica status solidi (a) – applications and materials science (1862-6300)
Volume number: 208
Issue number: 12
Start page: 2830
End page: 2832
Number of pages: 3
ISSN: 1862-6300
eISSN: 1862-6319
Languages: English-Great Britain (EN-GB)
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Abstract
Ce 3+-doped oxide glass with high Gd 2O 3 (30 mol%) concentration was prepared as a scintillating glass under CO reducing atmosphere. A dominant emission band of the Ce 3+ 5d → 4f transition peaking around 400 nm was observed in the photo- and radioluminescence (PL, RL) spectra. PL decay was governed by a few tens of nanoseconds decay time. The integral scintillation efficiency of about 30% of the Bi 4Ge 3O 12 scintillator was observed as well. It exhibits a light yield of about 910 photons/MeV with an energy resolution of 18.3% (FWHM) in the pulse height spectrum of 662 keV γ-rays from a 137Cs source. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Keywords
oxide glasses, time-resolved luminescence
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