Volume 6, Issue 2 (6-2018)                   IJRSM 2018, 6(2): 1-8 | Back to browse issues page

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Khalifeh-Shoushtari M, Sadeghi E, Zahedifar M. Fabrication of LiF:Sr,Ce dosimeter using melting method and study of its thermoluminescence properties. IJRSM 2018; 6 (2) :1-8
URL: http://rsm.kashanu.ac.ir/article-1-304-en.html
University of Kashan
Abstract:   (4295 Views)
In this work, lithium fluoride doped with impurities of Sr and Ce, was produced using melting method and its thermoluminescence (TL) properties was investigated. The optimized values of 0.5 mol% of Sr and 0.1 mol% of Ce were obtained for the most TL sensitivity. Reusability of the prepared samples has been investigated for 5 cycles of annealing, irradiation and reading and no considerable change in TL response was found. For the storage time of 30 days, low temperature peak was faded while the main and high temperature peaks remained almost unchanged. A linear dose- response was identified in the absorbed dose range of 1 mGy to 10 Gy. Three overlapped peaks at temperatures of 416, 472 and 506 K were determined using TL glow curve de-convolution results. Kinetic parameters such as activation energy and order of kinetic were calculated by general order kinetic model.

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Type of Study: Research | Subject: Special

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