Yazar "RTEÜ, Fen - Edebiyat Fakültesi, Fizik Bölümü" için PubMed İndeksli Yayınlar Koleksiyonu listeleme
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Anisotropic local structure of SrFe2-xNixAs2 (x=0.00, 0.16, and 0.23) superconductor probed by polarized X-ray absorption fine structure measurements
Hacısalihoğlu, M.Y.; Tortora, L.; Tomassucci, G.; Simonelli, L.; Saini, N. L. (MDPI, 2024)We have investigated the effect of the Ni substitution on the local structure and the valence electronic states of the SrFe2-xNixAs2 (x = 0.00, 0.16, and 0.23) superconductor with a multi-edge extended X-ray absorption ... -
Assessment of metal concentrations (Cu, Zn, and Pb) in seawater, sediment and biota samples in the coastal area of Eastern Black Sea, Turkey
Baltaş, Hasan; Şirin, Murat; Dalgıç, Göktuğ; Bayrak, Esra Yılmaz; Akdeniz, Aysel (Pergamon-Elsevier Science Ltd, 2017)This study investigated the contents of Cu, Zn and Pb in seawater, sediment, different shell sizes of mussel (Mytilus galloprovinciaIis) and sea snail (Rapana venosa) samples collected from four different provinces of the ... -
Calculation of radiation attenuation coefficients, effective atomic numbers and electron densities for some building materials
Damla, N.; Baltaş, Hasan; Çelik, A.; Kırış, Erkan; Çevik, U. (2012)Some building materials, regularly used in Turkey, such as sand, cement, gas concrete (lightweight, aerated concrete), tile and brick, have been investigated in terms of mass attenuation coefficient, effective atomic, ... -
A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey
Baltaş, Hasan; Şirin, Murat; Gökbayrak, Emre; Özçelik, Ali Erdem (Pergamon-Elsevier Science Ltd, 2020)In the present study, the concentration levels of heavy metals such as Cr, Fe, Ni, Cu, Zn, As and Pb in soil samples collected from 88 sampling locations around Sinop Province, Turkey were measured using energy dispersive ... -
Determination of natural radionuclides and some metal concentrations in human tooth samples in the Rize province, Turkey
Baltaş, Hasan; Şirin, Murat; Şenel, Firdevs; Devran, Fatih (Taylor & Francis Ltd, 2019)The main purpose of this study was to identify the concentrations of naturally occurring radionuclides (Ra-226, Th-232 and K-40) and some metals (Fe, Ni, Cu, Zn, Pb and Cd) in tooth samples collected from humans living in ... -
Determination of radioactivity levels and hazards of soil and sediment samples in Fi{dotless}rti{dotless}na Valley (Rize, Turkey)
Kurnaz, A.; Küçükömeroğlu, B.; Keser, Recep; Okumuşoğlu, Nazmi Turan; Korkmaz, F.; Karahan, G.; Çevik, U. (Elsevier, 2007)The natural radioactivity levels in soil and sediment samples of Fi{dotless}rti{dotless}na Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the Fi{dotless}rti{dotless}na ... -
Determination of radioactivity levels and heavy metal concentrations in seawater, sediment and anchovy (Engraulis encrasicolus) from the Black Sea in Rize, Turkey
Baltaş, Hasan; Kiriş, Erkan; Şirin, Murat (Pergamon-Elsevier Science Ltd, 2017)Seawater, sediment and fish (anchovy) samples consumed in the Rize province of the Eastern Black Sea region of Turkey were collected from five different stations. the radioactivity levels (Ra-226, Th-232. K-40 and Cs-137) ... -
Determination of the local structure of CsBi4-xPbxTe6 (x=0, 0.5) by X-ray absorption spectroscopy
Wakita, Takanori; Paris, Eugenio; Mizokawa, Takashi; Hacisalihoğlu, Muammer Yasin; Terashima, Kensei; Okazaki, Hiroyuki; Proux, Olivier; Kieffer, Isabella; Lahera, Eric; Del Net, William; Olivi, Luca; Takano, Yoshihiko; Muraoka, Yuji; Yokoya, Takayoshi; Saini, Nauramg L. (Royal Soc Chemistry, 2016)We have studied the local structure and valence electronic unoccupied states of thermoelectric CsBi4Te6 and superconducting CsBi3.5Pb0.5Te6 (T-c similar to 3 K) by extended X-ray absorption fine structure (EXAFS) and X-ray ... -
Determination of tritium concentrations in humans before the development of a nuclear power plant in Turkey
Dizman, Serdar; Yılmaz, Adnan; Keser, Recep (Taylor & Francis Ltd, 2015)The most widely used method to determine the level of tritium in humans is testing urine. Tritium concentrations in urine samples of 100 persons aged 18-66 years selected randomly from a pilot region in Turkey were analysed. ... -
Distribution of Cs-137 in the mediterranean mussel (Mytilus galloprovincialis) in Eastern Black Sea Coast of Turkey
Baltaş, Hasan; Kiriş, Erkan; Dalgıç, Göktuğ; Çevik, Uğur (Pergamon-Elsevier Science Ltd, 2016)This study presents the results of Cs-137 and K-40 radionuclide concentrations in mussel (Mytilus galloprovincialis) samples collected during the period of February-November 2014 from twelve different stations within the ... -
The electronic structure of Ag1-xSn1+xSe2 (x=0.0, 0.1, 0.2, 0.25 and 1.0)
Wakita, Takanori; Paris, Eugenio; Kobayashi, Kaya; Terashima, Kensei; Hacısalihoğlu, Muammer Yasin; Ueno, Teppei; Bondino, Federica; Muraoka, Yuji; Yokoya, Takayoshi; Saini, Naurang L. (Royal Soc Chemistry, 2017)We have studied the valence electronic structure of Ag1-xSn1+xSe2 (x = 0.0, 0.1, 0.2, 0.25) and SnSe (x = 1.0) by a combined analysis of X-ray absorption spectroscopy (XAS) and X-ray photoemission spectroscopy (XPS) ... -
Evaluation of ecological risk, source, and spatial distribution of some heavy metals in marine sediments in the Middle and Eastern Black Sea region, Turkey
Apaydın, Aylin; Kabaoğlu, Hatice; Apaydın, Gökhan; Şirin, Murat; Cengiz, Erhan; Köksal, Oğuz Kağan; Baltaş, Hasan; Tıraşoğlu, Engin (Springer Heidelberg, 2021)In the present study, the concentration levels of heavy metals such as Mn, Fe, Ni, Cu, Zn, Cr, and Pb in sediment samples collected from 16 sampling locations in the Middle and Eastern Black Sea regions, Turkey, were ... -
Experimental study on copper uptake capacity in the Mediterranean mussel (Mytilus galloprovincialis)
Baltaş, Hasan; Dalgıç, Göktuğ; Bayrak, Esra Yılmaz; Şirin, Murat; Çevik, Uğur; Apaydın, Gökhan (Springer Heidelberg, 2016)To investigate the effect of different sizes, sex, and exposure time on Cu uptake capacity, mussels Mytilus galloprovincialis of different shell sizes were exposed to different Cu concentrations in different aquariums. in ... -
Gamma irradiation and the radiation shielding characteristics: for the lead oxide doped the crosslinked polystyrene-b-polyethyleneglycol block copolymers and the polystyrene-b-polyethyleneglycol-boron nitride nanocomposites
Cinan, Zehra Merve; Erol, Burcu; Başkan, Taylan; Mutlu, Saliha; Yılmaz, Sevil Savaşkan; Yılmaz, Ahmet Hakan (MDPI, 2021)This work aimed to research the efficiency of gamma irradiation and shielding characteristics on the lead oxide (PbO) doped the crosslinked polystyrene-b-polyethyleneglycol (PS-b-PEG) block copolymers and polystyrene-b-p ... -
Identification of heavy metal origins related to chemical and morphological soil properties using several non-destructive X-ray analytical methods
Akbulut, Songül; Grieken, Renevan; Kılıç, Mehmet A.; Çevik, Uğur; Rotondo, Giuliana G. (Kluwer Academic Publishers, 2013)Soils are complex mixtures of organic, inorganic materials, and metal compounds from anthropogenic sources. In order to identify the pollution sources, their magnitude and development, several X-ray analytical methods were ... -
Indoor and outdoor radon measurements at lung cancer patients' homes in the dwellings of Rize Province in Turkey
Özen, Songül Akbulut; Çelik, Necati; Dursun, Emrehan; Taşkın, Halim (Springer, 2018)In this study, indoor and outdoor radon (Rn-222) surveys were carried out in the summer and winter seasons in homes of one hundred lung cancer patients in the year 2013-2014. the aim was to investigate the relationship ... -
Mn substitution effect on the local structure of La(Fe1-xMnx)AsO studied by temperature dependent x-ray absorption measurements
Hacısalihoğlu, Muammer Yasin; Simonelli, Laura; Marini, Carlo; Provino, Alessia; Martinelli, Alberto; Manfrinetti, Pietro; Saini, Naurang Lal (IOP Publishing, 2021)The local structure of La(Fe1-xMnx)AsO has been investigated using temperature dependent Fe K-edge extended x-ray absorption fine structure (EXAFS) measurements. The EXAFS data reveal distinct behavior of Fe-As and Fe-Fe ... -
The nanoscale structure and unoccupied valence electronic states in FeSe1-xTex chalcogenides probed by X-ray absorption measurements
Hacısalihoğlu, Muammer Yasin; Paris, Eugenio; Joseph, Boby; Yanmaz, Ekrem; Saini, Naurang L. (Royal Soc Chemistry, 2015)We have studied the nanoscale structure and unoccupied electronic states in FeSe1-xTex by a combined analysis of Se K, Te L-1 and Fe K-edges X-ray absorption measurements. Extended X-ray absorption fine structure (EXAFS) ... -
The polarization of X-rays and magnetic photoionization cross-sections for L3 sub-shell
The alignment of atoms with inner-shell vacancies resulting from ionization by photons was investigated by measuring the anisotropic emission of L shell X-ray lines. The X-ray line intensities were measured using an Si(Li) ... -
Precision and accuracy of ST-EDXRF performance for As determination comparing with ICP-MS and evaluation of As deviation in the soil media
Akbulut, Songül; Çevik, Uğur; Van, Aydın Ali; De Wael, Karolien; Van Grieken, Rene (Pergamon-Elsevier Science Ltd, 2014)The present study was conducted to (i) determine the precision and accuracy of arsenic measurement in soil samples using ST-EDXRF by comparison with the results of ICP-MS analyses and (ii) identify the relationship of As ...