Yazar "0000-0002-9972-429X" için FEF - Makale Koleksiyonu | Fizik Bölümü / Department of Physics listeleme
-
A comparative morphological, compositional and tl study of tenedos (Bozcaada) and Sile aeolianites, Turkey
Polymeris, George S.; Erginal, Ahmet Evren; Güneç Kıyak, Nafiye (Univ Agean, 2012)Aeolianites are carbonate-cemented deposits of coastal dune sands, mostly of Quaternary age. Even though aeolianite exposures on the coasts of the Mediterranean Sea are frequent, very few records have been documented from ... -
The correlation of fast OSL component with the TL peak at 325 degrees C in quartz of various origins
Kitis, George; Güneç Kıyak, Nafiye; Polymeris, George S.; Tsirliganis, Nestor C. (Elsevier Science BV, 2010-02)The fast component of the optically stimulated luminescence (OSL) signal in quartz is the basic tool for the optical dating. Its relation with the thermoluminescence (TL) glow-peak at about 325 degrees C is well established ... -
Dissolution and subsequent re-crystallization as zeroing mechanism, thermal properties and component resolved dose response of salt (NaCl) for retrospective dosimetry
Polymeris, George S.; Kitis, George; Güneç Kıyak, Nafiye; Sfamba, Ioanna; Subedi, Bhagawan; Pagonis, Vasilis (Pergamon-Elsevier Science Ltd, 2011-09)In the present study we report dosimetric properties of iodized salt aiming at using it as an accidental luminescent dosimeter. It was found that the very good sensitivity of its main dosimetric peak is strongly affected ... -
The firing temperature of pottery from ancient Mesopotamia, Turkey, using luminescence methods: a case study for different grain-size fractions
Polymeris, George S.; Güneç Kıyak, Nafiye; Koul, Dileep K.; Kitis, George (Wiley-Blackwell, 2014-10)The assessment of the firing temperature of a prehistoric pottery sample collected from ancient Mesopotamia, Turkey was studied using luminescence techniques. The methods for this estimation involved the observation of the ... -
In-homogeneity in the pre-dose sensitization of the 110 degrees C TL peak in various quartz samples: The influence of annealing
Polymeris, George S.; Oniya, Ebenezer O.; Jibiri, Nnamdi N.; Tsirliganis, Nestor C.; Kitis, George (Elsevier Science BV, 2012-03-01)The pre-dose sensitization effect of the 110 degrees C TL glow-peak of quartz is a basic tool in thermoluminescence and optically stimulated luminescence dating and retrospective dosimetry. In the present work, a homogeneity ... -
Investigating the thermally transferred optically stimulated luminescence source trap in fired geological quartz
Koul, Dileep K.; Patil, Pravinkumar G.; Oniya, Ebenezer O.; Polymeris, George S. (Pergamon-Elsevier Science Ltd, 2014-03)The pre-dosed thermoluminescence (TL) emission of quartz has been found to be useful in retrospective dosimetry and archaeometry. Though the pre-dosed optically stimulated luminescence (OSL) and emissions have been reported ... -
Investigating the thermally transferred optically stimulated luminescence source trap in fired geological quartz (vol 62, pg 60, 2014)
Koul, Dileep K.; Patil, Pravinkumar G.; Oniya, Ebenezer O.; Polymeris, George S. (Pergamon-Elsevier Science Ltd, 2014-08)[No abstract available] -
Investigation of OSL signals from very deep traps in unfired and fired quartz samples
Kitis, George; Güneç Kıyak, Nafiye; Polymeris, George S.; Pagonis, Vasilis (Elsevier Science BV, 2010-03-15)This paper presents an attempt to isolate experimentally optically stimulated luminescence (OSL) signals which may originate from very deep traps (VDT) in quartz samples. As VDT we consider those traps which are responsible ... -
Investigation of the OSL signal from very deep traps in natural quartz
Kitis, George; Güneç Kıyak, Nafiye; Polymeris, George S.; Pagonis, Vasilis (Univ Agean, Dept Mediterranean Stud, 2010)It has been recently reported by several studies that a thermally transferred optically stimulated luminescence (TT-OSL) signal from quartz grains can be used to extend the dating range for quartz samples. The TT-OSL signals ... -
IRSL dating of a deep water core from Pylos, Greece; comparison to post ir blue OSL and TL dating results
Polymeris, George S.; Kitis, George (Univ Agean, 2011)The 'double SAR' protocol procedure permits the determination of two equivalent dose (De) values for each polymineral aliquot; an IRSL De resulting mostly from feldspars along with a post-IR OSL De for a mixed signal for ... -
New quartz technique for OSL dating of limestones
The equivalent dose De determination of limestone-made ancient constructions by thermoluminescence (TL) prevents accurate measurements and requires plateau test of bleached curves. Optical stimulated luminescence (OSL) of ... -
Potassium determinations using sem, faas and xrf: some experimental notes
Liritzis, Ioannis; Mavrikis, D; Zacharias, Nikolaos; Sakalis, Anastasios; Tsirliganis, Nestor C.; Polymeris, George S. (University of Aegean, 2011)The calibration of Scanning Electron Microscopy coupled with Energy Dispersive X-Rays Spectrometry (SEM-EDS) for elemental quantitative analysis is an important task for characterization, provenance and absolute dating ... -
Preliminary results towards the equivalence of transformed continuous-wave Optically Stimulated Luminescence (CW-OSL) and linearly-modulated (LM-OSL) signals in quartz
Kitis, George; Polymeris, George S.; Güneç Kıyak, Nafiye; Pagonis, Vasilis (Versita, 2011-09)The present paper presents a comparative experimental study of two commonly measured Optically Stimulated Luminescence (OSL) signals in quartz. The experimental study measures both the continuous wave OSL (CW-OSL) and the ... -
Preliminary TL and OSL investigations of obsidian samples
Polymeris, George S.; Gogou, D.; Afouxenidis, Dimitrios; Rapti, S.; Tsirliganis, Nestor C.; Kitis, George (Univ Agean, Dept Mediterranean Stud, 2010)Obsidian is a volcaniclastic mineral extremely hard to break, which was used in prehistoric Greece (and elsewhere in the World), in order to provide tools, weapons, knives and arrowheads. The present work aims to characterize ... -
Reconstruction of thermally quenched glow curves in quartz
Subedi, Bhagawan; Polymeris, George S.; Tsirliganis, Nestor C.; Pagonis, Vasilis; Kitis, George (Pergamon-Elsevier Science Ltd, 2012-04)The experimentally measured thermoluminescence (TL) glow curves of quartz samples are influenced by the presence of the thermal quenching effect, which involves a variation of the luminescence efficiency as a function of ... -
Relative response of TL and component-resolved OSL to alpha and beta radiations in annealed sedimentary quartz
Polymeris, George S.; Afouxenidis, Dimitrios; Raptis, Spyridoula; Liritzis, Ioannis; Tsirliganis, Nestor C.; Kitis, George (Pergamon-Elsevier Science Ltd, 2011-10)Knowledge of the relative luminescence response to alpha and beta radiation is very important in TL and OSL dating. In the present study the relative alpha to beta response is studied in a sedimentary quartz sample, ... -
Thermal quenching of thermoluminescence in quartz samples of various origin
Subedi, Bhagawan; Oniya, Ebenezer O.; Polymeris, George S.; Afouxenidis, Dimitrios; Tsirliganis, Nestor C.; Kitis, George (Elsevier Science BV, 2011-03-15)The effect of thermal quenching stands among the most important properties in the thermoluminescence (TL) of quartz on which many applications of TL are based. Since the quartz samples used in various applications are all ... -
Thermal quenching of thermoluminescence in quartz samples of various origins
Subedi, Bhagawan; Afouxenidis, Dimitrios; Polymeris, George S.; Bakoglidis, Konstantinos D.; Raptis, Spyridoula; Tsirliganis, Nestor C.; Kitis, George (Univ Agean, Dept Mediterranean Stud, 2010)The effect of thermal quenching plays an important role in the thermoluminescence (TL) of quartz on which many applications of TL are based. In present work it is investigated that the thermal quenching parameters i.e. the ... -
Thermally assisted OSL from deep traps in Al2O3:C
Polymeris, George S.; Raptis, Spyridoula; Afouxenidis, Dimitrios; Tsirliganis, Nestor C.; Kitis, George (Pergamon-Elsevier Science Ltd, 2010-03)The present work suggests an alternative experimental method in order to not only measure the signal of the deep traps in Al2O3:C without heating the sample to temperatures greater than 500 degrees C, but also use this ... -
Thermoluminescence and optically stimulated luminescence properties of natural barytes
Kitis, George; Güneç Kıyak, Nafiye; Polymeris, George S. (Elsevier Ltd, 2010-12)Heavy, baryte-loaded, concrete is commonly used as radiation shielding material around high energy particle accelerators. Concrete samples received from a shielding block located at CERN cite contain many crystalline ...