TL spectra of natural zircons

J. Chee, H. L. Oczkowski, Y. Kirsh, A. Scott, W. O. Siyanbola, P. D. Townsend

Research output: Contribution to journalArticlepeer-review


The TL emission spectra of zircon are dominated by line features near 380, 480 and 580 nm characteristics of rare earth impurities. Variations in TL signals from Dy3+, Tb3+ and Eu3+ impurities are seen in samples from different regions. In a detailed study of green zircons it is noted that the TL spectra and relative intensities of component glow peaks alter with storage after irradiation. This complex defect interaction results in the so-called anomalous fading in some spectral regions and signal enhancement in others. Defects associated with Dy3+ and Tb3+ behave differently. Defect models of some of the centres in the zircons are discussed.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalInternational Journal of Radiation Applications and Instrumentation. Part
Issue number1-2
StatePublished - 1988
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgements--We are grateful to the British Council, SERC and the University of Ife for financial assistance.

Copyright 2014 Elsevier B.V., All rights reserved.


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