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Garnet scintillators of superior timing characteristics: material, engineering by liquid phase epitaxy
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SYSNO ASEP 0486912 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Garnet scintillators of superior timing characteristics: material, engineering by liquid phase epitaxy Author(s) Průša, Petr (FZU-D) RID, ORCID
Kučera, M. (CZ)
Babin, Vladimir (FZU-D) RID, ORCID
Brůža, P. (CZ)
Pánek, D. (CZ)
Beitlerová, Alena (FZU-D) RID, ORCID
Mareš, Jiří A. (FZU-D) RID, ORCID
Hanuš, M. (CZ)
Lučeničová, Z. (CZ)
Nikl, Martin (FZU-D) RID, ORCID, SAI
Parkman, T. (CZ)Number of authors 11 Article number 1600875 Source Title Advanced Optical Materials. - : Wiley - ISSN 2195-1071
Roč. 5, č. 6 (2017), s. 1-9Number of pages 9 s. Publication form Online - E Language eng - English Country DE - Germany Keywords Ce ; liquid phase epitaxy ; Mg co-doping ; multicomponent garnets ; scintillators Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA16-15569S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000397806200005 EID SCOPUS 85013447145 DOI 10.1002/adom.201600875 Annotation Using liquid phase epitaxy, the Mg co-doped multicomponent garnet film scintillators of composition (Ce0.01Lu0.27Gd0.74)3–xMgx(Ga2.48Al2.46)O12, x = 0–0.002 (0–700 at. ppm) are prepared. Following luminescence and scintillation characteristics and their dependence on Mg concentration are studied: photoluminescence emission and excitation spectra, radioluminescence spectra, photoluminescence and scintillation decay curves, light yield, energy resolution, and afterglow. At lower Mg concentration, the timing characteristics are slightly improved, while light yield and energy resolution are not negatively influenced. At higher Mg concentration, scintillation decay is significantly accelerated, although light yield is somewhat reduced. Afterglow values become extraordinarily low for a garnet scintillator, at least two times better than the best values published so far, which paves the way for their application in fast frame imaging applications.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
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