ON THE ROLE OF NONSTOICHIOMETRY ON THE PHOTOSTIMULATED LUMINESCENCE IN BA(1-X)SRXFBR-EU

Authors
BATENTSCHUK M FASBENDER R HACKENSCHMIED P LI H THOMS M WINNACKER A
Citation
M. Batentschuk et al., ON THE ROLE OF NONSTOICHIOMETRY ON THE PHOTOSTIMULATED LUMINESCENCE IN BA(1-X)SRXFBR-EU, Radiation measurements, 29(3-4), 1998, pp. 299-305
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Radiation measurements → ACNP
ISSN journal
13504487
Volume
29
Issue
3-4
Year of publication
1998
Pages
299 - 305
Database
ISI
SICI code
1350-4487(1998)29:3-4<299:OTRONO>2.0.ZU;2-O
Abstract
The influence of Sr-doping and changing the F/Br-ratio on the properti es of the widely used X-ray storage phosphor BaFBr:Eu is investigated. It is confirmed that Sr-doping considerably increases sensitivity and it is shown that Sr gives rise to new stimulation bands at 1.92 and 2 .28 eV. In order to increase the phosphor performance for stimulation at 633 nm a Sr concentration between 15-20% is most favorable. Further results indicate that for storage phosphors synthesized from BaBr2, S rBr2, BaF2 and SrF2 an F/Br-ratio of 107/93 seems to be most favorable for practical application. (C) 1998 Elsevier Science Ltd. All rights reserved.