Preparation and thermoluminescent dosimetry features of high sensitivity LiF:Mg,Ce phosphor

AuthorsM.K. Shoushtari - M. Zahedifar - E. Sadeghi a
JournalNuclear Inst. and Methods in Physics Research
Paper TypeFull Paper
Published AtJanuary ۲۰۱۸
Journal GradeISI
Journal TypeTypographic
Journal CountryIran, Islamic Republic Of

Abstract

Thermoluminescence (TL) kinetics and dosimetry features of newly produced LiF doped with Mg and Ce were
investigated. Different contents of Mg (0–1 mol%) and Ce (0–2 mol%) were introduced in host material by melting
method. The most TL sensitivity of the fabricated phosphor was obtained at 0.7 and 0.05 mol% concentrations of
Mg and Ce impurities, respectively. The optimum pre-irradiation annealing regime of the synthesized LiF-based
material was found at 350 ◦C for 10 min. Kinetic parameters of LiF:Mg,Ce dosimeter were obtained using different
methods of computerized glow curve deconvolution (CGCD), initial rise (IR) and isothermal decay (ID). A good
conformity are observed between the results obtained from different kinetic analysis methods. Other TL features
such as fading, dose response and reusability were also examined

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