Characterization of Ce,Ca:LuAG ceramic scintillators fabricated from co-precipitated powders

0562015 - FZÚ 2023 RIV NL eng J - Článek v odborném periodiku
Cai, J. - Zhu, D. - Hu, D. - Kučerková, Romana - Beitlerová, Alena - Dai, Z. - Xie, T. - Chewpraditkul, W. - Nikl, Martin - Zhang, Z. - Li, J.
Characterization of Ce,Ca:LuAG ceramic scintillators fabricated from co-precipitated powders.
Optical Materials. Roč. 133, Nov (2022), č. článku 113051. ISSN 0925-3467. E-ISSN 1873-1252
Grant CEP: GA ČR GA16-15569S; GA ČR(CZ) GA21-17731S; GA MŠMT(CZ) LO1409; GA MŠMT EF16_013/0001406; GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406; OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: defect engineering * Ce,Ca:LuAG ceramics * co-precipitation method * scintillation decay
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.9, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.optmat.2022.113051

In this work, Ce:LuAG and Ce,Ca:LuAG ceramic scintillators were vacuum sintered from the powders synthesized by the co-precipitation method. Composition and thermal behavior of the precursor, spectral and scintillation characteristics of the ceramics were investigated in detail. After calcination at 900 ◦C, amorphous precursor was completely transformed into LuAG and nano-powder with particle size of about 40 nm was formed finally. Light yield and relative intensity of the fast component of the Ce:LuAG ceramics are higher than those of Ce:LuAG ceramics prepared by the conventional solid-state reaction method. Furthermore, the scintillation decay of the Ce,Ca:LuAG ceramics is accelerated compared to the Ce:LuAG, with the LY(0.5 μs)/LY(3 μs) ratio of 93%.
Trvalý link: https://hdl.handle.net/11104/0334446