Simulation of an anomalous behavior of thermoluminescence glow peak of quartz from Nigeria

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dc.contributor.authorOniya, E. O.
dc.contributor.authorOlubi, O. E.
dc.contributor.departmentFen Fakültesitr_TR
dc.date.accessioned2019-11-28T12:15:52Z
dc.date.available2019-11-28T12:15:52Z
dc.date.issued2017
dc.description.abstractMechanism of the experimentally observed anomalous shift of a thermoluminescence (TL) glow peak that varied with irradiation dose is yet to be fully established. A theory that the anomalous peak must have contained more than one first order composite peaks each with different TL dose characteristics has been one major explanation proposed to explain this observation. This work was undertaken to simulate the anomalous glow peak by using a modified version of a previously proposed model and numerically solving sets of simultaneous differential equations governing the stages of TL phenomena (excitation, relaxation and heating). In the modified model, two additional electron trapping centers were incorporated in order to simulate accurately this glow curve. Computerized glow curve deconvolution (CGCD) analyses was carried out on the simulated glow peak in attempt to retrieve back the electron trapping center energies and to identify their respective peak positions. The outcome of this confirmed the peak to be possibly composite in nature comprising of three overlapping glow peaks at 288, 300 and 317oC with respective energy gaps of 1.70, 1.73 and 1.75eV. It is therefore further substantiated that this kind of temperature shift of peak with dose resulting from composite glow peaks is possible.tr_TR
dc.identifier.endpage57tr_TR
dc.identifier.issue2tr_TR
dc.identifier.startpage50tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/68383
dc.identifier.volume4tr_TR
dc.language.isoentr_TR
dc.publisherAnkara : Ankara Üniversitesitr_TR
dc.relation.journalJournal of Nuclear Sciencestr_TR
dc.relation.publicationcategoryMakale - Ulusal - Editör Denetimli Dergitr_TR
dc.subjectThermoluminescencetr_TR
dc.subjectSimulationtr_TR
dc.subjectQuartztr_TR
dc.titleSimulation of an anomalous behavior of thermoluminescence glow peak of quartz from Nigeriatr_TR
dc.typeArticletr_TR

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Cilt:04 Sayı:02 (2017)