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Energy transfer to the Ce<SUP>3+</SUP> centers in Lu<INF>3</INF>Al<INF>5</INF>O<INF>12</INF>:Ce scintillator

Authors :
Nikl, M.
Mares, J. A.
Solovieva, N.
Hybler, J.
Voloshinovskii, A.
Nejezchleb, K.
Blazek, K.
Source :
Physica Status Solidi (A) - Applications and Materials Science; May 2004, Vol. 201 Issue: 7 pR41-R44, 4p
Publication Year :
2004

Abstract

Luminescence spectra and scintillation decays under steady-state and pulsed X-ray excitations, respectively, are presented for undoped and Ce-doped Lu&lt;INF&gt;3&lt;/INF&gt;Al&lt;INF&gt;5&lt;/INF&gt;O&lt;INF&gt;12&lt;/INF&gt; single crystals at room temperature. The energy transfer from the trapped exciton state towards the Ce&lt;SUP&gt;3+&lt;/SUP&gt; centers appears rather inefficient. A negative influence of the shallow trapping states is evidenced, which results in delayed radiative recombination at the Ce&lt;SUP&gt;3+&lt;/SUP&gt; centers and slows down the scintillation response of the material. (&#169; 2004 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim)

Details

Language :
English
ISSN :
18626300 and 18626319
Volume :
201
Issue :
7
Database :
Supplemental Index
Journal :
Physica Status Solidi (A) - Applications and Materials Science
Publication Type :
Periodical
Accession number :
ejs6001058
Full Text :
https://doi.org/10.1002/pssa.200409041