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Proceedings Paper

Improving Ce3+ doped scintillating materials for medical imaging applications
Author(s): Samuel Blahuta; Bruno Viana; Aurélie Bessière; Didier Gourier; Vladimir Ouspenski
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Paper Abstract

Ce:LYSO (Lu1.90Y0.1SiO5:Ce) single crystals were prepared by the Czochralski technique. We report some effects of the X-ray irradiation on the shape of the emission spectra. For instance a large decrease of the longest wavelength emission (at about 500 nm) is observed with an increase of the light yield after one hour under X-ray irradiation. Electron paramagnetic resonance (EPR) evidences no change in the two cerium site occupancy along with the irradiation time. A mechanism taking into account the evolution of the oxygen vacancies as neighbors of Ce3+ ions is proposed.

Paper Details

Date Published: 11 March 2013
PDF: 5 pages
Proc. SPIE 8621, Optical Components and Materials X, 86210N (11 March 2013); doi: 10.1117/12.2006639
Show Author Affiliations
Samuel Blahuta, Saint-Gobain Recherche (France)
Ecole Nationale Supérieure de Chimie de Paris (France)
Bruno Viana, LCMCP, Chimie-Paristech, UPMC, Collège de France (France)
Aurélie Bessière, LCMCP, Chimie-Paristech, UPMC, Collège de France (France)
Didier Gourier, LCMCP, Chimie-Paristech, UPMC, Collège de France (France)
Vladimir Ouspenski, Saint-Gobain Recherche (France)

Published in SPIE Proceedings Vol. 8621:
Optical Components and Materials X
Michel J. F. Digonnet; Shibin Jiang; J. Christopher Dries, Editor(s)

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