Optical and scintillation characteristics of Gd2YAl2Ga3O12:Ce and Lu2YAl2Ga3O12:Ce single crystals
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Author list: Chewpraditkul W., Sakthong O., Pattanaboonmee N., Chewpraditkul W., Szczesniak T., Swiderski L., Moszynski M., Kamada K., Yoshikawa A., Nikl M.
Publisher: Elsevier
Publication year: 2017
Journal: Journal of Crystal Growth (0022-0248)
Volume number: 468
Start page: 395
End page: 398
Number of pages: 4
ISSN: 0022-0248
eISSN: 1873-5002
Languages: English-Great Britain (EN-GB)
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Abstract
The optical and scintillation characteristics of Gd2YAl2Ga3O12:Ce and Lu2YAl2Ga3O12:Ce single crystals are investigated. At 662 keV γ-rays, light yield (LY) of 37,900 ph/MeV and energy resolution of 7.0% obtained for Gd2YAl2Ga3O12:Ce are superior to those of 18,900 ph/MeV and 11.5% obtained for Lu2YAl2Ga3O12:Ce. Scintillation decays are measured using the time-correlated single photon counting technique. A fast component decay time of 45 ns with relative intensity of 88% obtained for Lu2YAl2Ga3O12:Ce is superior to that of 50 ns (65%) for Gd2YAl2Ga3O12:Ce. The linear attenuation coefficient at 662 keV γ-rays is also determined and discussed. © 2016 Elsevier B.V.
Keywords
Ce-doping, Czochralski method, Gd2YAl2Ga3O12:Ce, Lu2YAl2Ga3O12:Ce
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