Fast Ce,Ca:LuAG scintillation ceramics for HEP: Fabrication, characterization and computation

0575197 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Zhu, D. - Chen, X. - Cai, J. - Beitlerová, Alena - Kučerková, Romana - Chewpraditkul, W. - Nikl, Martin - Li, J.
Fast Ce,Ca:LuAG scintillation ceramics for HEP: Fabrication, characterization and computation.
Journal of the American Ceramic Society. Roč. 106, č. 11 (2023), s. 6787-6800. ISSN 0002-7820. E-ISSN 1551-2916
Grant CEP: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA21-17731S
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: Ce,Ca:LuAG ceramics * doping concentration * first-principles calculations * scintillation performance
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.9, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1111/jace.19309

High-energy physics community is looking for a hard, fast, and low-cost scintillation material, and Ce:Lu3Al5O12 (Ce:LuAG) ceramic is one of the competitive candidates. This work presents Ce,Ca:LuAG scintillation ceramics with good optical quality, and the influence ofCe and Ca concentrations on optical and scintillation propertieswas fully analyzed.At relatively low level of Ce concentration, the less Ca2+ content is needed to achieve a significant intensity increase in fast scintillation component while maintaining a relatively high light yield (LY). The introduction of only 0.1 at% Ca2+ could increase the LY0.5 μs/LY3.0 μs from 79.9% to 96.1% in Ce,Ca:LuAG ceramics of 0.1 at% Ce. First-principles investigations are further performed to reveal the tuning mechanisms of the scintillation properties of LuAG by Ce and Ca codoping. We show that the Fermi level shifts down with Ca codoping, which increases the Ce4+ content.
Trvalý link: https://hdl.handle.net/11104/0345032