Study of the annealing characteristics of LiF:Mg,Ti using computerised glow curve deconvolution

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Abstract

Computerised glow curve deconvolution (CGCD) based on first order TL kinetics has been used to study the dependence of the TL sensitivity, S, of glow peaks 2, 3 and (4 + 5) on choice of annealing temperature during the low and high temperature annealing procedures commonly applied to LiF:Mg,Ti (TLD-100, Harshaw/Filtrol). This was in order to determine optimal temperatures for these procedures as well as to investigate the role of annealing temperature reproducibility in the requirements of high precision TL dosimetry. The recommended optimum annealing procedure is: (i) 400°C, for 1 h followed by an accelerated 'natural' cooling rate of approximately 150°C · min-1. (ii) 75 ± 3°C, 24 h preirradiation and/or 110°C, 10 min post-irradiation.

Original languageEnglish
Pages (from-to)255-258
Number of pages4
JournalRadiation Protection Dosimetry
Volume33
Issue number1-4
DOIs
StatePublished - 1 Jan 1990

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