X-ray irradiated thermo- and radioluminescence, structural and thermal characterization of septarian (powder&bulk) from Madagascar

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dc.authorid0000-0001-8849-4364en_US
dc.contributor.authorKeskin, Ilker Cetin
dc.contributor.authorKati, Mehmet Ismail
dc.contributor.authorTüremiş, Murat
dc.contributor.authorGultekin, Serdar
dc.contributor.authorUstun, Siileyman
dc.contributor.authorCetin, Ahmet
dc.date.accessioned2021-03-20T20:13:04Z
dc.date.available2021-03-20T20:13:04Z
dc.date.issued2018
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe luminescence properties of septarian have been investigated for the first time in this study, which has been the subject of many studies in both geological and geophysical fields. This sediment with a calcium carbonate structure exhibited high luminescence properties with X-ray excitation. The radioluminescence (RL) and thermoluminescence (TL) properties were investigated as well as their structural (FT-IR, XRD), morphological (SEM), thermal (TG-DTA) and absorption (UV-Vis-NIR) properties of this sediment. The broad RL peak of septarian was observed at 640 nm. There was a significant increase in the RL intensities of the sifted samples compared with the bulk sample. The TL glow curves of septarian irradiated with X-rays exhibited intense main TL glow peak having the maximum temperatures at 116 degrees C and about 390 degrees C with a heating rate of 2 degrees C/s. Also; the TL kinetic parameters were reported; activation energy (E), frequency factor (s) and the order of kinetics (b) of the first peak have been determined in detail by using peak shape (PS) and Computerized Glow Curve Deconvolution (CGCD) methods. SEM and EDS analysis were performed for the two different layers of septarian. The light colored side with the amorphous structure of the sample has more impurities (such as Fe, Al, Zr, K) than the crystallized and darker side.en_US
dc.identifier.doi10.1016/j.optmat.2018.06.005en_US
dc.identifier.endpage181en_US
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage176en_US
dc.identifier.urihttp://doi.org/10.1016/j.optmat.2018.06.005
dc.identifier.urihttps://hdl.handle.net/20.500.12885/783
dc.identifier.volume83en_US
dc.identifier.wosWOS:000440116200028en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTüremiş, Murat
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofOptical Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSeptarianen_US
dc.subjectCaCO3en_US
dc.subjectRadioluminescence (RL)en_US
dc.subjectThermoluminescence (TL)en_US
dc.subjectStructural characterizationen_US
dc.subjectThermal analysisen_US
dc.titleX-ray irradiated thermo- and radioluminescence, structural and thermal characterization of septarian (powder&bulk) from Madagascaren_US
dc.typeArticleen_US

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