Anomalous heating rate dependence and analyses of thermoluminescence glow curves in Gd doped ZnB2O4 phosphors

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dc.contributor.authorAtasöz S.
dc.contributor.authorTopaksu M.
dc.contributor.authorSouadi G.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:04:27Z
dc.date.available2024-07-22T08:04:27Z
dc.date.issued2022
dc.description.abstractHere, we report the thermoluminescence (TL) characteristics and trapping parameters under beta ray excitations of pelletized Gd-incorporated ZnB2O4 synthesized through the gel combustion method. The chemical composition of the obtained Gd incorporated ZnB2O4 was confirmed using X-ray diffraction (XRD). The best doping concentration of Gd was 0.25 mass%, which resulted in the highest luminous efficiency. The glow curves of the pellet-formed samples exposed to β-irradiation at various doses showed glow peaks at about 79 °C, 133 °C and 276 °C with a heating rate of 2 °Cs−1. An anomalous heating rate effect was observed for the peak centered at 276 °C, but the TL intensity of the peak at 79 °C and 133 °C decreased with an increasing heating rate. The TL glow peaks were studied using Tm-Tstop, initial rise (IR), and variable heating rate (VHR) and Computerized glow curve deconvolution (CGCD) methods. In the range of 0.1–50 Gy, the total integral values of TL output increased linearly with increased dose. A complex glow curves are composed of six distinguishable peaks as revealed by the results obtained from IR and CGCD methods. The current results indicate that the ZnB2O4:Gd3+ phosphor is a suitable option in radiation dosimetry for environmental monitoring. © 2022 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.jlumin.2022.118838
dc.identifier.issn00222313
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/12691
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectGadolinium
dc.subjectHeating
dc.subjectPelletizing
dc.subjectPhosphors
dc.subjectThermoluminescence
dc.subjectX ray diffraction
dc.subjectZinc compounds
dc.subjectAnomalous heating
dc.subjectAnomalous heating rate
dc.subjectDeconvolution method
dc.subjectGd
dc.subjectGlow curve
dc.subjectGlow curve deconvolution
dc.subjectGlow peaks
dc.subjectRate analysis
dc.subjectRate-dependence
dc.subjectX- ray diffractions
dc.subjectHeating rate
dc.titleAnomalous heating rate dependence and analyses of thermoluminescence glow curves in Gd doped ZnB2O4 phosphors
dc.typeArticle

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