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Optimization of Mixed Storage Phosphors of the Type (Ba,Sr)F1+xBr1−x:Eu for Digital X-Ray Radiography

Published online by Cambridge University Press:  10 February 2011

M. Batentschuk ,
P. Hackenschmied ,
A. Winnacker ,
M. Moll  and
R. Fasbender
M. Batentschuk
Affiliation:
Institute of Material Science 6, University of Erlangen-Nuernberg, Martensstrasse 7, D91058 Erlangen, GERMANY, Email: mirobat@ww.uni-erlangen.de
P. Hackenschmied
Affiliation:
Institute of Material Science 6, University of Erlangen-Nuernberg, Martensstrasse 7, D91058 Erlangen, GERMANY, Email: mirobat@ww.uni-erlangen.de
A. Winnacker
Affiliation:
Institute of Material Science 6, University of Erlangen-Nuernberg, Martensstrasse 7, D91058 Erlangen, GERMANY, Email: mirobat@ww.uni-erlangen.de
M. Moll
Affiliation:
Institute of Anorganic Chemistry, University of Erlangen-Nuemberg, Egerlandstrasse 1, D91058 Erlangen, GERMANY
R. Fasbender
Affiliation:
Agfa-Gevaert AG, Photo-Technik Werk Muenchen, Tegernseer Landstrasse 161, D81539 Muenchen, GERMANY
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Abstract

The possibility of further improving the sensitivity of the widely used BaFBr:Eu X-ray storage phosphor is investigated. The influence of CsF- and EuF3-doping on the stimulation spectrum is identical to the one of other ways to vary F/Br-ratio of this mixed crystal. The effect of CsF-doping turns out to be not primarily due to a replacement of Ba2+ by Cs1+ and subsequent charge comensation, but rather to the change in the F/Br ratio. Sr doping not only gives rise to FA(Br; Sr2+)-center formation but, at the same time increases the PSL-response in the bands ascribed to F(Br -)-centers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 560: Symposium E – Luminescent Materials , 1999 , 27
Copyright
Copyright © Materials Research Society 1999

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References

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