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Dive into the research topics where Hüseyin Aytekin is active.

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Featured researches published by Hüseyin Aytekin.


Radiation Protection Dosimetry | 2012

Radioactivity of coals and ashes from Çatalağzi coal-fired power plant in Turkey

Hüseyin Aytekin; Rıdvan Baldık

The Çatalağzı coal-fired power plant (CFPP) is the Turkish CFPP that uses the hard coals produced in Zonguldak, located in the West Black Sea region of the country. Gamma-ray spectrometry was used to determine (226)Ra, (232)Th and (40)K contents in pulverised coal, bottom ash and fly ash samples. The natural radionuclide concentrations in pulverised coal ranged from 29 to 61 Bq kg(-1) for (226)Ra, from 32 to 55 Bq kg(-1) for (232)Th and from 229 to 414 Bq kg(-1) for (40)K. The fly ash fraction gave concentrations ranging from 80 to 98 Bq kg(-1) for (226)Ra, from 64 to 85 Bq kg(-1) for Th and from 754 to 992 Bq kg(-1) for (40)K, respectively. The enrichment factors from coal to fly ashes are 1.7, 2.24 and 2.6 for (232)Th, (226)Ra and (40)K, respectively. Therefore, it is advisable to monitor the environmental impact of the power plant.


Physics of Atomic Nuclei | 2010

Investigation of neutron and proton distributions of He, Li, and Be isotopes using the new Skyrme-Force parameters

Rıdvan Baldık; Hüseyin Aytekin; E. Tel

The proton and neutron densities, root-mean-square (rms) radii of proton density and neutron density, and neutron skin thickness of 4–10He, 6–11Li, and 7–12Be isotopes are calculated using Skyrme-Hartree-Fock method with SLy4, SLy5, SLy6, and SLy7 force parameters. The evaluated results are compared with experimental data. Also, the results of halo nuclei (6,8He, 11Li, and 11Be) are compared with the results of other isotopes for selected nuclei having the same neutron configuration.


Modern Physics Letters A | 2014

Investigation of excitation functions for (n, 2n) reactions on some samarium, europium and gadolinium isotopes in the mass region 144≤A≤160

Rıdvan Baldık; Hüseyin Aytekin; Ozan Artun

In this paper, we investigated excitation functions of (n, 2n) reactions on the target nuclei in the mass region (144≤A≤160) for some samarium, europium and gadolinium isotopes. Studies were performed for incident neutron energies between 1 MeV and 20 MeV. We used the ALICE/ASH and TALYS 1.4 codes to investigate the pre-equilibrium effects and the ALICE/ASH were used for the equilibrium effects. The effects of collision probabilities on pre-equilibrium excitation functions were also investigated.


Journal of Radioanalytical and Nuclear Chemistry | 2014

Erratum to: Natural radioactivity measurements and dose assessments in sand samples collected from Zonguldak beaches in Turkey

Hüseyin Aytekin; Mustafa Çağatay Tufan; Ceyhun Küçük

In this study, measurements of the gamma activity concentrations of 238U, 232Th and 40K natural radionuclides and associated dose assessments in sand samples collected from Zonguldak beaches (Turkey) were carried out. In order to measure the activity concentrations an Ortec GEM30 P4 model gamma spectrometer with HPGe detector was used. The activity concentrations for 238U, 232Th and 40K radionuclides were found to vary from 9.98 ± 0.82 to 56.81 ± 2.44, from 9.93 ± 1.46 to 48.87 ± 3.81 and from 103.00 ± 6.73 to 610.50 ± 24.24 Bq kg−1, respectively. The gamma dose rates were estimated to be from 16.67 ± 1.63 to 79.44 ± 4.37 nGy h−1.


Modern Physics Letters A | 2013

AN INVESTIGATION OF THE NUCLEAR STRUCTURES OF EVEN–EVEN NEUTRON-RICH Sr, Zr AND Mo ISOTOPES

Hüseyin Aytekin; Ozan Artun

Binding energies and their differences are investigated to evaluate the two-neutron separation energies (S2n), the two-proton separation energies (S2p) and the average proton–neutron interaction strengths (δVpn) of neutron-rich Sr, Zr and Mo isotopes in the mass region A = 86–110, including even–even nuclei. Calculations were performed using the Hartree–Fock–Bogoliubov (HFB) method with different Skyrme force parametrizations. The obtained results are discussed and compared with the results of experimental and relativistic mean-field theory (RMFT).


Physics of Atomic Nuclei | 2010

Calculation of the ground state properties of even-even Sn isotopes

Hüseyin Aytekin; Rıdvan Baldık; E. Tel

We investigate the ground-state properties of even-even Sn isotopes using the Skyrme-Hartree-Fock (SHF) and Skyrme-Hartree-Fock-Bogolyubov (SHFB) methods with SKM* and SLy4 force parameters. We focus on isotopes of even-even Sn because these isotopes are vital to the structural studies of unstable nuclei taking place at the electron radioactive-ion collider at RIKEN. In the present paper, we calculate the binding energies per particle, the rms nuclear charge radii, the rms nuclear proton density radii, and the rms nuclear neutron density radii, for even-even Sn isotopes, using the SHF and SHFB methods. We compare our results with experimental data and with the results of relativistic mean-field theory. Notably, we fit our calculated binding energies per particle to experimental results, using the aforementioned SHF methods with SKM* and SLy4 parameters


Modern Physics Letters A | 2014

An investigation of nuclear properties of even–even natural 92–100Mo isotopes

Ozan Artun; Çağlar Aytekin; Hüseyin Aytekin

In this study, we have calculated the basic nuclear properties such as binding energies, root mean square (rms) charge radii, and neutron and proton densities of the even–even natural 92–100Mo isotopes. Investigations were performed using the Hartree–Fock–Bogoliubov (HFB) method with different Skyrme-like forces. Separation energies, which have an important role in nuclear structure, of neutron, proton, deuteron, triton, helium-3 and alpha were also investigated with TALYS 1.4 code. The calculated results were discussed and compared with experimental results.


SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION | 2007

The Effect of Elastic Scattering Cross Section to Multiple‐Scattering of Electrons

Abdullah Koray; Hüseyin Aytekin; Ahmet Cengiz

A Monte Carlo code is developed which simulates the interactions and transport of electron within a given medium. The angular distributions of the electrons transmitted through a medium of definite thickness are obtained by using this code. In order to investigate the contribution of elastic scattering to multiple‐scattering, the angular distrubutions obtained by using the Rutherford differential cross section (DCS) modified by screening correction are compared with the results obtained from the uniform distribution (the constant differential elastic scattering cross section).


Journal of Radioanalytical and Nuclear Chemistry | 2011

Radioactivity measurements and radiation dose assessments due to natural radiation in Karabük (Turkey)

Rıdvan Baldık; Hüseyin Aytekin; Mustafa Erer


Journal of Fusion Energy | 2011

An Investigation for Ground State Features of Some Structural Fusion Materials

Hüseyin Aytekin; E. Tel; Rıdvan Baldık; A. Aydin

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Rıdvan Baldık

Zonguldak Karaelmas University

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Ozan Artun

Zonguldak Karaelmas University

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A. Aydin

Kırıkkale University

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Abdullah Koray

Zonguldak Karaelmas University

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Ali Arasoğlu

Yüzüncü Yıl University

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Ceyhun Küçük

Zonguldak Karaelmas University

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Derya Demirbağ

Zonguldak Karaelmas University

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Eyyüp Tel

Zonguldak Karaelmas University

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