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Compositional regulation of multi-component GYGAG:Ce scintillation ceramics: Self-sintering-aid effect and afterglow suppression
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SYSNO ASEP 0577155 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Compositional regulation of multi-component GYGAG:Ce scintillation ceramics: Self-sintering-aid effect and afterglow suppression Author(s) Zhu, D. (CN)
Wu, L. (CN)
Beitlerová, Alena (FZU-D) RID, ORCID
Kučerková, Romana (FZU-D) ORCID
Chewpraditkul, W. (TH)
Nikl, Martin (FZU-D) RID, ORCID, SAI
Li, J. (CN)Number of authors 7 Source Title Journal of Advanced Ceramics - ISSN 2226-4108
Roč. 12, č. 10 (2023), s. 1919-1929Number of pages 11 s. Language eng - English Country CN - China Keywords GYGAG:Ce ceramics ; multi-component garnet ; compositional regulation ; afterglow Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA21-17731S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001090624400007 EID SCOPUS 85177446625 DOI https://doi.org/10.26599/JAC.2023.9220797 Annotation (Gd,Y,Ce)3(YxGa1−x)2GaAl2O12 (GYGAG:Ce) scintillation ceramics with different Y excess, where x = 0.005−0.08, were fabricated by the solid-state reaction method. The effects of stoichiometry on the phase composition, optical quality, and microstructure of GYGAG:Ce ceramics were analyzed. GYGAG:Ce ceramics have a pure garnet phase and obtain good in-line transmittance when x < 0.04, while more Y excess leads to the creation of the secondary phase. The change of x value influences the sintering behavior of the GYGAG:Ce ceramics: The excess of Y works as the self-sintering aid and significantly reduces the sintering temperature of ceramics. When x = 0.01–0.04, the X-ray excited luminescence (XEL) spectra and light yields of GYGAG:Ce ceramics are similar. The fast scintillation decay time and afterglow intensity of GYGAG:Ce ceramics show a slight decrease with increasing x value. Finally, additional 50–500 ppm MgO and 100–500 ppm CaO were introduced to the GYGAG:Ce ceramic.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0346387
Number of the records: 1