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1993 | 84 | 5 | 953-957
Article title

Fluorescence Processes and Scintillation of CeF_{3} Crystal Excited by UV and X-Ray Synchrotron Radiation

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EN
Abstracts
EN
Photoluminescence properties of CeF_{3} have been investigated. Two kinds of emitting centers have been identified: regular Ce^{3+} sites exhibiting two close emission bands (285 and 300 nm) and a fast fluorescence (20 ns) and several physically different perturbed Ce^{3+} sites giving rise to a broad emission band near 340 nm and a longer fluorescence (30-40 ns) the decay time of which varies with wavelength. An energy transfer occurs between these two kinds of centers. Scintillation properties have been studied under UV and X-ray excitation. The additional fast decay always observed at short time under ionizing radiation is interpreted by a temperature dependent luminescence quenching phenomenon due to high excitation density.
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EN
Publisher

Year
Volume
84
Issue
5
Pages
953-957
Physical description
Dates
published
1993-11
Contributors
author
  • Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Claude Bernard Lyon I, URA 442 CNRS, 43, Boulevard du 11 Novembre 1918, Bgt. 205, 69622 Villeurbanne cedex, France
author
  • Synchrotron Radiation Laboratory, Moscow State University, 117234 Moskva, Russia
author
  • Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Claude Bernard Lyon I, URA 442 CNRS, 43, Boulevard du 11 Novembre 1918, Bgt. 205, 69622 Villeurbanne cedex, France
author
  • Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Claude Bernard Lyon I, URA 442 CNRS, 43, Boulevard du 11 Novembre 1918, Bgt. 205, 69622 Villeurbanne cedex, France
References
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bwmeta1.element.bwnjournal-article-appv84z517kz
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