About: Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Mg-codoped Lu3Al5O12:Ce single crystal scintillators were prepared by a micropulling down method in a wide concentration range from 0 to 3000 ppm of Mg codopant. Their structure and chemical composition were checked by X-ray diffraction and electron probe microanalysis techniques. Absorption and luminescence spectra, photoluminescence decays, and thermoluminescence glow curves were measured together with several other scintillation characteristics, namely, the scintillation decay, light yield, afterglow, and radiation damage to reveal the effect of Mg codoping. Several material characteristics manifest a beneficial effect of Mg codopant. We propose a model explaining the mechanism of material improvement which is based on the stabilization of a part of the cerium dopant in the tetravalent charge state. The stable Ce4+ center provides an additional fast radiative recombination pathway in the scintillation mechanism and efficiently competes with electron traps in garnet scintillators. Mg-codoped Lu3Al5O12:Ce single crystal scintillators were prepared by a micropulling down method in a wide concentration range from 0 to 3000 ppm of Mg codopant. Their structure and chemical composition were checked by X-ray diffraction and electron probe microanalysis techniques. Absorption and luminescence spectra, photoluminescence decays, and thermoluminescence glow curves were measured together with several other scintillation characteristics, namely, the scintillation decay, light yield, afterglow, and radiation damage to reveal the effect of Mg codoping. Several material characteristics manifest a beneficial effect of Mg codopant. We propose a model explaining the mechanism of material improvement which is based on the stabilization of a part of the cerium dopant in the tetravalent charge state. The stable Ce4+ center provides an additional fast radiative recombination pathway in the scintillation mechanism and efficiently competes with electron traps in garnet scintillators. (en)
Title	Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators (en)
skos:prefLabel	Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators Defect Engineering in Ce-Doped Aluminum Garnet Single Crystal Scintillators (en)
skos:notation	RIV/68407700:21340/14:00218453!RIV15-MSM-21340___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GA13-09876S), P(LH14266), S
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Vávrů, Kateřina
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	9996
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/14:00218453
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	scintillators; garnets; luminescence (en)
http://linked.open.../riv/klicoveSlovo	garnets luminescence scintillators
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[638BDA6381DA]
http://linked.open...i/riv/nazevZdroje	Crystal Growth & Design
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Inorganic nanoscintillators: novel synthesis and size-dependent characteristics. Innovative material concepts of rare earth-free scintillators
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	14
http://linked.open...iv/tvurceVysledku	Kamada, K. Yoshikawa, A. Kurosawa, S. Babin, V. Nikl, M. Beitlerova, A. Pilařová, Kateřina Bartosiewicz, K. Mihokova, E. Pejchal, J.
http://linked.open...ain/vavai/riv/wos	000341226500069
issn	1528-7483
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/cg501005s
http://localhost/t...ganizacniJednotka	21340

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