| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9586142 | Journal of Luminescence | 2005 | 7 Pages |
Abstract
In this study,results on the radiation damage of the storage phosphor CsBr:Eu2+ are presented. It is shown that a high X-ray dose causes a significant deterioration of the photostimulated luminescence accompanied by a degradation of the UV-excited Eu2+ fluorescence. Since no related dose-dependent increase of Eu3+ luminescence is observed, the decrease of Eu2+ fluorescence is attributed to an agglomeration of Eu2+ leading to luminescence quenching. The correlated diffusivity of Eu2+ ions is ascribed to the presence of aggregated F-centres such as MEu-centres observed by means of absorption spectroscopy.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
J. Zimmermann, S. Hesse, H. von Seggern, M. Fuchs, W. Knüpfer,