Title of article
Radiation hardness of CsBr:Eu2+
Author/Authors
J. Zimmermann، نويسنده , , S. Hesse، نويسنده , , H. von Seggern، نويسنده , , M. Fuchs، نويسنده , , W. Knüpfer، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
7
From page
24
To page
30
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
CsBr:Eu2+ , Storage phosphors , photostimulated luminescence , X-Ray , Radiation-induced defects
Journal title
Journal of Luminescence
Serial Year
2005
Journal title
Journal of Luminescence
Record number
1260905
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