Journal of Luminescence, volume 234, pages 117933

The scintillation mechanisms in Ce and Tb doped (GdxY1-x)Al2Ga3O12 quaternary garnet structure crystalline ceramics

Publication typeJournal Article
Publication date2021-06-01
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor3.6
ISSN00222313
General Chemistry
Biochemistry
Biophysics
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
Scintillation mechanisms and performance parameters of quaternary (Gd,Y) 3 Al 2 Ga 3 O 12 compositionally disordered polycrystalline garnet type ceramics doped with Ce or Tb have been investigated for the first time. Similar light yield dependence on a Gd content in the composition was evidenced for both dopants. The highest light yield achieved in Tb doped samples was found to be four times higher than in Ce doped samples, which was achieved by tuning of the resonance conditions for energy transfer from Gd subsystem to Tb 3+ activators due to the variation of Gd content in the matrix. The exceptional role of the Gd 3+ subsystem is forming the high light yield of Tb doped quaternary garnets under different kinds of ionizing radiation is pointed out. • Scintillation mechanisms of quaternary garnet type (Gd x ,Y 1-x ) 3 Al 2 Ga 3 O 12 ceramics doped with Ce or Tb were investigated for the first time • A role of the Frenkel type excitons in the energy transfer processes at both dopings is under discussion • The light yield of Tb doped samples was estimated to be ~200,000 ph/MeV

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Korzhik M. et al. The scintillation mechanisms in Ce and Tb doped (GdxY1-x)Al2Ga3O12 quaternary garnet structure crystalline ceramics // Journal of Luminescence. 2021. Vol. 234. p. 117933.
GOST all authors (up to 50) Copy
Korzhik M., Borisevich A., Fedorov A., Gordienko E., Karpyuk P., Dubov V., Alekseevich Sokolov P., Mikhlin A., Dosovitskiy G., Mechninsky V., Kozlov D., Uglov V. The scintillation mechanisms in Ce and Tb doped (GdxY1-x)Al2Ga3O12 quaternary garnet structure crystalline ceramics // Journal of Luminescence. 2021. Vol. 234. p. 117933.
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RIS Copy
TY - JOUR
DO - 10.1016/j.jlumin.2021.117933
UR - https://doi.org/10.1016%2Fj.jlumin.2021.117933
TI - The scintillation mechanisms in Ce and Tb doped (GdxY1-x)Al2Ga3O12 quaternary garnet structure crystalline ceramics
T2 - Journal of Luminescence
AU - Korzhik, M
AU - Borisevich, A
AU - Fedorov, A.
AU - Gordienko, E
AU - Karpyuk, P
AU - Dubov, V
AU - Alekseevich Sokolov, Petr
AU - Mikhlin, A
AU - Dosovitskiy, G
AU - Mechninsky, V
AU - Kozlov, D.
AU - Uglov, V
PY - 2021
DA - 2021/06/01 00:00:00
PB - Elsevier
SP - 117933
VL - 234
SN - 0022-2313
ER -
BibTex
Cite this
BibTex Copy
@article{2021_Korzhik,
author = {M Korzhik and A Borisevich and A. Fedorov and E Gordienko and P Karpyuk and V Dubov and Petr Alekseevich Sokolov and A Mikhlin and G Dosovitskiy and V Mechninsky and D. Kozlov and V Uglov},
title = {The scintillation mechanisms in Ce and Tb doped (GdxY1-x)Al2Ga3O12 quaternary garnet structure crystalline ceramics},
journal = {Journal of Luminescence},
year = {2021},
volume = {234},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016%2Fj.jlumin.2021.117933},
pages = {117933},
doi = {10.1016/j.jlumin.2021.117933}
}
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