1. Fast fluorescence and scintillation of Pr-doped yttrium aluminum perovskite
- Author
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Ioan Dafinei, Michal Koselja, Bernard Moine, Christian Pedrini, Denis Bouttet, Paul Lecoq, Christophe Dujardin, and Karel Blazek
- Subjects
Scintillation ,Dopant ,Organic Chemistry ,Doping ,Analytical chemistry ,chemistry.chemical_element ,Yttrium ,Radioluminescence ,Computer Science::Computational Geometry ,Fluorescence ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Inorganic Chemistry ,chemistry ,Condensed Matter::Superconductivity ,Computer Science::Programming Languages ,Computer Science::Symbolic Computation ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Spectroscopy ,Computer Science::Distributed, Parallel, and Cluster Computing ,Nuclear chemistry ,Perovskite (structure) - Abstract
Spectroscopy of Pr-doped YA1O 3 (YAP) has been investigated under synchrotron radiation and laser excitations. Fast UV fluorescence was shown to be due to allowed dāf transitions of Pr 3+ . Light yield of Pr-doped YAP has been measured in comparison with Ce-doped YAP. The relatively low scintillation efficiency of Pr: YAP is explained by the very different concentration of the dopant ions in both systems and by the presence in Pr: YAP of Ce trace impurities which can act as trap centers for the fast UV scintillation of Pr 3+ ions.
- Published
- 1994
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