TL and EPR studies of Cu, Ag and P doped Li2B4O 7 phosphor

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Can N., Karali T., Townsend P., YILDIZ F.

Journal of Physics D: Applied Physics, vol.39, no.10, pp.2038-2043, 2006 (SCI-Expanded, Scopus)

• Publication Type: Article / Article
• Volume: 39 Issue: 10
• Publication Date: 2006
• Doi Number: 10.1088/0022-3727/39/10/009
• Journal Name: Journal of Physics D: Applied Physics
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.2038-2043
• Manisa Celal Bayar University Affiliated: Yes

Abstract

Key characteristics of a newly prepared tissue-equivalent, highly sensitive thermoluminescence dosimeter, Li2B4O7:Cu,Ag,P, are presented. The material was developed at the Institute of Nuclear Sciences, Belgrade, in the form of sintered pellets. A new preparation procedure has greatly increased the sensitivity of the basic copper activated lithium borate and the glow curve of Li2B4O7 : Cu,Ag,P consists of a well-defined main dosimetric peak situated at about 460-465 K with a sensitivity which is about four to five times higher than that of LiF : Mg,Ti (TLD-100). The exceptionally good response features of Li2B 4O7 : Cu,Ag,P are attributed to the incorporation of Cu as a dopant. Both low and high temperature emission spectra are presented and the origins of the various emission bands are considered. Additional data are provided from electron paramagnetic resonance measurements. © 2006 IOP Publishing Ltd.