Journal Article

Thermoluminescence behaviour of KCL<sub>1−<i>x</i></sub>Br<sub><i>x</i></sub>:Pb<sup>2+</sup> exposed to gamma radiation

E. Cruz-Zaragoza, M. Barboza-Flores, V. Chernov, S. Ramos, A. J. Hernández and S. H. Murrieta

in Radiation Protection Dosimetry

Volume 119, issue 1-4, pages 280-284
Published in print September 2006 | ISSN: 0144-8420
Published online April 2006 | e-ISSN: 1742-3406 | DOI:
Thermoluminescence behaviour of KCL1−xBrx:Pb2+ exposed to gamma radiation

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  • Nuclear Chemistry, Photochemistry, and Radiation


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The thermoluminescence (TL) behaviour of solid solutions of lead doped KCl1−xBrx (X = 0.02, 0.35, 0.50, 0.65, 0.85, 1) mixed crystals exposed to gamma radiation at different doses from 60Co is reported. The TL glow curves of KCl1−xBrx:Pb2+ crystal exposed in the range of 0–140 Gy is strongly dependent on composition X. The maximum temperature of the main TL glow peak was found to shift towards lower temperatures as composition X increased and a significant enhancement of the TL efficiency in KCl1−xBrx:Pb2+ was found for X = 0.50 which is attributed to an increase in the vacancy concentration of the mixed halides at middle composition. The participation of the F-centre in the TL phenomenon particularly related to the main TL glow peak observed in mixed samples was also confirmed.

Journal Article.  2431 words.  Illustrated.

Subjects: Nuclear Chemistry, Photochemistry, and Radiation

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