DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6459

Title: Correlated ESR, PL and TL studies on Sr-5(PO4)(3)Cl : Eu thermoluminescence dosimetry phosphor
Authors: DHOBLE, SJ
MOHARIL, SV
GUNDU RAO, TK
Keywords: luminescence
centers
eu
Issue Date: 2007
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF LUMINESCENCE, 126(2), 383-386
Abstract: Electron spin resonance (ESR), thermoluminescence and photoluminescence studies in Eu2+ activated Sr-5(PO4)(3)Cl phosphor are reported in this paper. The Sr-5(PO4)(3)Cl:Eu2+ phosphor is twice as sensitive as the conventional CaSO4:Dy phosphor used in thermoluminescence dosimetry of ionizing radiations. It has a linear response, simple glow curve, emission peaking at 456 nm. The defect centers formed in the Sr-5(PO4)(3)Cl:Eu2+ phosphor are studied by using the technique of ESR. A dominant TL glow peak at 430 K with a smaller shoulder at 410K is observed in the phosphor. ESR studies indicate the presence at three centers at room temperature. Step annealing measurements show a connection between one of the centers and the dominant glow peak at 430 K. The 430 K TL peak is well correlated with center I, which is tentatively identified as (PO4)(2-) radical. (c) 2006
URI: http://dx.doi.org/10.1016/j.jlumin.2006.08.098
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6459
http://hdl.handle.net/10054/6459
ISSN: 0022-2313
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback