Zimmermann, Jörg ; Hesse, Sabine ; Seggern, Heinz von ; Fuchs, M. ; Knüpfer, W. (2005)
Radiation hardness of CsBr:Eu2.
In: Journal of luminescence, 114 (1)
doi: 10.1016/j.jlumin.2004.11.011
Artikel, Bibliographie
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | Zimmermann, Jörg ; Hesse, Sabine ; Seggern, Heinz von ; Fuchs, M. ; Knüpfer, W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Radiation hardness of CsBr:Eu2 |
| Sprache: | Englisch |
| Publikationsjahr: | Juli 2005 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of luminescence |
| Jahrgang/Volume einer Zeitschrift: | 114 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1016/j.jlumin.2004.11.011 |
| URL / URN: | http://www.sciencedirect.com/science/article/pii/S0022231304... |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | Csbr:Eu2+. Storage phosphors, X-ray, Photostimulated luminescence, Radiation-induced defects |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektronische Materialeigenschaften |
| Hinterlegungsdatum: | 20 Nov 2008 08:21 |
| Letzte Änderung: | 20 Feb 2020 13:24 |
| PPN: | |
| Sponsoren: | The support of the Siemens AG (Medical Solutions) is gratefully acknowledged., We also acknowledge the support of the DFG (Deutsche Forschungsgemeinschaft) for financial support., We thank Martina Opitz from the Siemens AG for the production of many NIPs for the present investigations. |
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