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Title: Influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}

Abstract

The poor radiation hardness of the otherwise excellent x-ray storage phosphor CsBr:Eu{sup 2+} constitutes a problem for its commercial application in medical diagnostics. X-ray induced vacancy centers such as M-centers enhance the diffusion of Eu{sup 2+} activators resulting in a formation of photostimulated luminescence (PSL) inactive europium clusters or second phases of europium compounds. The present study investigates the influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}. It is reported that the integration of Li{sup +} into the CsBr:Eu{sup 2+} suppresses the generation of M-centers during x-irradiation and thereby partially improves the radiation hardness.

Authors:
; ; ; ;  [1];  [2]
  1. Department of Electronic Materials, Institute of Materials Science, Darmstadt University of Technology, 64287 Darmstadt (Germany)
  2. (Germany)
Publication Date:
OSTI Identifier:
20979417
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 11; Other Information: DOI: 10.1063/1.2743731; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CESIUM BROMIDES; CRYSTALS; DIFFUSION; EUROPIUM COMPOUNDS; EUROPIUM IONS; HARDNESS; LITHIUM IONS; M CENTERS; PHOSPHORS; PHOTOLUMINESCENCE; X RADIATION

Citation Formats

Zimmermann, J., Hesse, S., Seggern, H. von, Fuchs, M., Knuepfer, W., and Siemens AG, Medical Solutions, Vacuum Technology, 91058 Erlangen. Influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}. United States: N. p., 2007. Web. doi:10.1063/1.2743731.
Zimmermann, J., Hesse, S., Seggern, H. von, Fuchs, M., Knuepfer, W., & Siemens AG, Medical Solutions, Vacuum Technology, 91058 Erlangen. Influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}. United States. doi:10.1063/1.2743731.
Zimmermann, J., Hesse, S., Seggern, H. von, Fuchs, M., Knuepfer, W., and Siemens AG, Medical Solutions, Vacuum Technology, 91058 Erlangen. Fri . "Influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}". United States. doi:10.1063/1.2743731.
@article{osti_20979417,
title = {Influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}},
author = {Zimmermann, J. and Hesse, S. and Seggern, H. von and Fuchs, M. and Knuepfer, W. and Siemens AG, Medical Solutions, Vacuum Technology, 91058 Erlangen},
abstractNote = {The poor radiation hardness of the otherwise excellent x-ray storage phosphor CsBr:Eu{sup 2+} constitutes a problem for its commercial application in medical diagnostics. X-ray induced vacancy centers such as M-centers enhance the diffusion of Eu{sup 2+} activators resulting in a formation of photostimulated luminescence (PSL) inactive europium clusters or second phases of europium compounds. The present study investigates the influence of Li-codoping on the radiation hardness of CsBr:Eu{sup 2+}. It is reported that the integration of Li{sup +} into the CsBr:Eu{sup 2+} suppresses the generation of M-centers during x-irradiation and thereby partially improves the radiation hardness.},
doi = {10.1063/1.2743731},
journal = {Journal of Applied Physics},
number = 11,
volume = 101,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}