Thermoluminescence glow-curve deconvolution using analytical expressions: A unified presentation
No Thumbnail Available
Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
This study provides a unified presentation of thermoluminescence (TL) glow-curve deconvolution within the framework of the open source R package “tgcd”, according to various analytical expressions that describe first-, second-, general-, and mixed-order kinetics as well as the recently developed semi-analytical expressions that derive from the one trap-one recombination center (OTOR) model that utilizes the Lambert W function or the Wright Omega function. We provide a comprehensive, flexible, convenient, and openly accessible program to analyze TL glow curves according to different models and expressions. The consistency of kinetic parameters determined using different model expressions was assessed using measured TL glow curve of CaF2:Dy. The performance of the computerized glow curve deconvolution (CGCD) method was also tested using simulated glow curves. Results revealed the benefits of comparing kinetic parameters determined from different model expressions and those obtained using experimental TL evaluation methods to assess the reliability of deconvolution results. The accuracy of the CGCD method is dependent upon both the model expressions used and the intrinsic trapping parameters of the TL material. © 2020 Elsevier Ltd
Description
Keywords
Calcium fluoride , Deconvolution , Fluorspar , Kinetic parameters , Analytical expressions , Evaluation methods , Glow curve deconvolution , Intrinsic trapping , Lambert W function , Mixed-order kinetics , Recombination centers , Semi-analytical expression , article , deconvolution , kinetic parameters , kinetics , reliability , simulation , thermoluminescence , Thermoluminescence