Luminescence and scintillation characteristics of Gd3Al 2Ga3O12:Ce3+ scintillators
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Author list: Sakthong O., Chewpraditkul W., Wanarak C., Pejchal J., Kamada K., Yoshikawa A., Pazzi G.P., Nikl M.
Publisher: Elsevier
Publication year: 2013
Journal: Optical Materials (0925-3467)
Volume number: 36
Issue number: 2
Start page: 568
End page: 571
Number of pages: 4
ISSN: 0925-3467
eISSN: 1873-1252
Languages: English-Great Britain (EN-GB)
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Abstract
Cerium-doped Gd3Al2Ga3O12 single crystals were grown by the Czochralski method with 1 at.% cerium. Absorption, luminescence and scintillation characteristics were investigated. The light yield and energy resolution were measured under 662 keV γ-ray excitation. The characteristic emission band of Ce3+ 5d-4f transition peaking around 525 nm was observed in the photoluminescence of Gd 3Al2Ga3O12:Ce. The light yield of 56,100 ph/MeV and energy resolution of 6.8% were obtained for a 5 × 5 × 1 mm3 Gd3Al2Ga3O 12:Ce sample. The light yield dependence on the sample height and on the shaping time was also studied and compared with Lu3Al 5O12:Ce crystal. © 2013 Elsevier B.V. All rights reserved.
Keywords
Gd3Al2Ga3O12:Ce, Lu 3Al5O12:Ce
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