Thermoluminescence study and evaluation of trapping parameters of samarium doped barium silicate phosphor

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dc.contributor.authorAlajlani Y.
dc.contributor.authorOglakci M.
dc.contributor.authorKaynar U.H.
dc.contributor.authorAyvacikli M.
dc.contributor.authorPortakal-Uçar Z.G.
dc.contributor.authorTopaksu M.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:06:50Z
dc.date.available2024-07-22T08:06:50Z
dc.date.issued2021
dc.description.abstractWe report the detailed analysis of thermoluminescence (TL) glow curves and the evaluation of kinetic parameters of Sm3+-incorporated BaSi2O5.The effect of various heating rates on TL kinetics and glow peak temperatures of Sm3+-doped BaSi2O5 phosphors exposed to beta particle irradiation at room temperature are investigated. The glow curve of the phosphor exposed to β-irradiation consists of two main peaks with maxima at about 91°C and 193°C and exhibits good linearity between 1 and 10 Gy. The activation energies and frequency factors of trap centers involved in the TL emission were calculated from the TL glow curve of the sample by means of variable heating rate (VHR), repeated initial rise (RIR), and computerized glow-curve deconvolution (CGCD). Analysis of the main dosimetric peak techniques indicate that activation energies (E) and pre-exponential factor (s) vary between 0.93 and 1.72 eV, 1010 and 1013 s−1. It is found that the temperature of the glow peaks shifts toward the higher temperatures and the TL intensity smoothly decreases as the heating rate increases. The behavior of the TL intensities and glow peak temperatures as a function of the heating rate are discussed with regards to thermal quenching. © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The Korean Ceramic Society and The Ceramic Society of Japan.
dc.identifier.DOI-ID10.1080/21870764.2020.1864898
dc.identifier.issn21870764
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13722
dc.language.isoEnglish
dc.publisherTaylor and Francis Ltd.
dc.rightsAll Open Access; Gold Open Access
dc.subjectActivation analysis
dc.subjectActivation energy
dc.subjectBarium compounds
dc.subjectHeating
dc.subjectHeating rate
dc.subjectIrradiation
dc.subjectParameter estimation
dc.subjectPhosphors
dc.subjectSamarium compounds
dc.subjectSilicates
dc.subjectSilicon
dc.subjectBeta irradiations
dc.subjectFrequency factors
dc.subjectGlow curve deconvolution
dc.subjectGlow-peak temperature
dc.subjectPreexponential factor
dc.subjectThermal quenching
dc.subjectTrapping parameter
dc.subjectVariable heating rates
dc.subjectThermoluminescence
dc.titleThermoluminescence study and evaluation of trapping parameters of samarium doped barium silicate phosphor
dc.typeArticle

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