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Photo-stimulated luminescence of calcium co-doped BaFBr : Eu2+ x-ray storage phosphors
Date
2003-01-21
Author
SCHLAPP, M
Bulur, Enver
VON SEGGERN, H
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The influence of calcium co-doping on the optical properties of the x-ray storage phosphor BaFBr: Eu2+, is determined by photo- stimulated luminescence techniques. It is found that the incorporation of calcium into the lattice results in a broadening of the photo- stimulation peak due to a calcium induced FA(Br, Ca2+)-centre with stimulation maxima at 540 and 680 nm. The optical cross-sections for the photo- stimulated process are determined by utilizing stimulation light with linearly increasing intensity. Furthermore, it is shown that the sensitivity for x-rays, i.e. the number of storage centres formed during x-ray exposure, increases up to a doping level of 1 mol% while it drops rapidly at higher calcium concentrations.
Subject Keywords
Acoustics and Ultrasonics
,
Electronic, Optical and Magnetic Materials
,
Surfaces, Coatings and Films
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/46577
Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
DOI
https://doi.org/10.1088/0022-3727/36/2/305
Collections
Department of Physics, Article
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BibTeX
M. SCHLAPP, E. Bulur, and H. VON SEGGERN, “Photo-stimulated luminescence of calcium co-doped BaFBr : Eu2+ x-ray storage phosphors,”
JOURNAL OF PHYSICS D-APPLIED PHYSICS
, vol. 36, no. 2, pp. 103–108, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46577.