Browsing by Author "Akkoyun, Serkan"
Now showing items 1-20 of 22
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alpha-decay half-life calculations of superheayy nuclei using artificial neural networks
Bayram, Tuncay; Akkoyun, Serkan; Kara, S. Okan (IOP PUBLISHING LTD, 2014)Investigations of superheavy elements (SHE) have received much attention in the last two decades, due to the successful syntheses of SHE. In particular, alpha-decay of SHEs has a great importance because most synthesized ... -
An analysis of E(5) shape phase transitions in Cr isotopes with covariant density functional theory
Bayram, Tuncay; Akkoyun, Serkan (IOP PUBLISHING LTD, 2013)Constrained relativistic mean field theory (RMF) has been employed for analysis of the shape phase transitions of even-even Cr52-66 isotopes. The systematic investigation of ground-state shape evolution between spherical ... -
An approach to adjustment of relativistic mean field model parameters
Bayram, Tuncay; Akkoyun, Serkan (E D P SCIENCES, 2017)The Relativistic Mean Field (RMF) model with a small number of adjusted parameters is powerful tool for correct predictions of various ground-state nuclear properties of nuclei. Its success for describing nuclear properties ... -
An approximation to the cross sections of Z (l) boson production at CLIC by using neural networks
Akkoyun, Serkan; Kara, Seyit O. (VERSITA, 2013)In this work, the possible dynamics associated with leptophilic Z (l) boson at CLIC (Compact Linear Collider) have been investigated by using artificial neural networks (ANNs). These hypotetic massive boson Z (l) have been ... -
Consistent empirical physical formula construction for recoil energy distribution in HPGe detectors by using artificial neural networks
Akkoyun, Serkan; Yildiz, Nihat (PERGAMON-ELSEVIER SCIENCE LTD, 2012)The gamma-ray tracking technique is a highly efficient detection method in experimental nuclear structure physics. On the basis of this method, two gamma-ray tracking arrays, AGATA in Europe and GRETA in the USA, are ... -
Consistent neural network empirical physical formula constructions for nonlinear scattering intensities of dye-doped nematic liquid crystals with ultraviolet pump laser-driven Fredericksz threshold shifts
Polat, Omer; Yildiz, Nihat; Akkoyun, Serkan (ELSEVIER GMBH, URBAN & FISCHER VERLAG, 2018)Intrinsic high nonlinearity in experimentally measured laser scattering intensities poses significant difficulties in analyzing various molecular and optical properties of nematic liquid crystals (NLCs). In this respect, ... -
Construction of consistent neural network empirical physical formulas for detector counts in neutron exit channel selection
Akkoyun, Serkan; Yildiz, Nihat (ELSEVIER SCI LTD, 2013)Proper selection of neutron exit channels following heavy-ion reactions is important in nuclear structure physics. A knowledge of detector counts versus number of neutron interaction points per event can be useful in this ... -
Energy level and half-life determinations from photonuclear reaction on Ga target
Akkoyun, Serkan; Bayram, Tuncay; Dulger, Fatih; Dapo, Haris; Boztosun, Ismail (WORLD SCIENTIFIC PUBL CO PTE LTD, 2016)Photonuclear reactions are important tools in the understanding of the nucleus. These reactions are also interesting for realizing the element creation processes in stellar environment. The use of bremsstrahlung photons ... -
Estimation of the femur length from its proximal measurements in Anatolian Caucasians by artificial neural networks
Otag, Ilhan; Otag, Aynur; Akkoyun, Serkan; Cimen, Mehmet (TAYLOR & FRANCIS LTD, 2016)Femora are a well preserved section of the skeleton after death. Therefore, they are commonly used in the field of forensic sciences, physical anthropology and anatomy. In addition, femur morphometry is helpful in finding ... -
Estimations of beta-decay energies through the nuclidic chart by using neural network
Akkoyun, Serkan; Bayram, Tuncay; Turker, Tugba (PERGAMON-ELSEVIER SCIENCE LTD, 2014)One of the main characteristics of unstable nuclei is beta-decay energy (Q(beta)). It is determined by different methods such as beta endpoint measurements, counting in coincidence with annihilation radiation, electron ... -
Estimations of fission barrier heights for Ra, Ac, Rf and Db nuclei by neural networks
Akkoyun, Serkan; Bayram, Tuncay (WORLD SCIENTIFIC PUBL CO PTE LTD, 2014)Accurate information about the fission barrier is important for studying of the fission process. Fission barrier is needed for discovering the island of stability in superheavy region and searching of the superheavy elements. ... -
HALF-LIVES OF Sc-47 ISOTOPE FROM PHOTONUCLEAR REACTIONS
Akkoyun, Serkan; Kocak, Gokhan; Bayram, Tuncay (RAD ASSOC, 2016)In order to understand atomic nuclei, photonuclear reaction is an important tool. Photons are used to induce the reactions. The use of bremsstrahlung photons generated from a medical linear accelerator is practical for ... -
THE IMPOSSIBILITY OF PRODUCING I-131 FROM ITS DAUGHTER Xe-131 BY PHOTONUCLEAR REACTIONS
Bayram, Tuncay; Akkoyun, Serkan; Celik, Necati; Haciislamoglu, Emel; Uruk, Serhat; Senturk, Sevki (RAD ASSOC, 2016)I-131 is one of the radioisotopes in nuclear medicine procedures for diagnostic and treatment purposes. It decays to Xe-131 by emitting beta particles. In this study, we have investigated the reproduction possibility of ... -
A method for determination of gamma-ray direction in space
Akkoyun, Serkan (PERGAMON-ELSEVIER SCIENCE LTD, 2013)Gamma-ray bursts (GRBs) are short and most intense bursts of gamma-rays that come from random direction in space. Their origins are still unknown and they originate likely from cosmological distances, probably after birth ... -
Neural network consistent empirical physical formula construction for density functional theory based nonlinear vibrational absorbance and intensity of 6-choloronicotinic acid molecule
Yildiz, Nihat; Karabacak, Mehmet; Kurt, Mustafa; Akkoyun, Serkan (PERGAMON-ELSEVIER SCIENCE LTD, 2012)Being directly related to the electric charge distributions in a molecule, the vibrational spectra intensities are both experimentally and theoretically important physical quantities. However, these intensities are inherently ... -
Neural network consistent empirical physical formula construction for neutron-gamma discrimination in gamma ray tracking
Yildiz, Nihat; Akkoyun, Serkan (PERGAMON-ELSEVIER SCIENCE LTD, 2013)Gamma ray tracking is an efficient detection technique in studying exotic nuclei which lies far from beta stability line. To achieve very powerful and extraordinary resolution ability, new detectors based on gamma ray ... -
NEW PARAMETERS FOR NUCLEAR CHARGE RADIUS FORMULAS
Bayram, Tuncay; Akkoyun, Serkan; Kara, S. Okan; Sinan, Alper (WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO, 2013)Parameters of widely used nuclear rms charge radius formulas have been refitted based on the latest experimental data for about 900 nuclei. It has been seen that the new parameters in the formulas give better results than ... -
Probing for leptophilic gauge boson Z(l) at ILC with root s=1 TeV by using ANN
Kara, S. Okan; Akkoyun, Serkan; Bayram, Tuncay (WORLD SCIENTIFIC PUBL CO PTE LTD, 2014)We search for leptophilic gauge boson Z(l) via the process e(+)e(-) -> mu(+)mu(-) ILC with root s = 1 TeV. In the leptonic extension of SM (SUC(3) x SUW(2) x U-Y (1) x U-l' (1)) we have predicted that ILC with root s = 1 ... -
A study on ground-state energies of nuclei by using neural networks
Bayram, Tuncay; Akkoyun, Serkan; Kara, S. Okan (PERGAMON-ELSEVIER SCIENCE LTD, 2014)One of the fundamental ground-state properties of nuclei is binding energy. Artificial neural networks (ANN) have been performed to obtain binding energies of nuclei based on the data calculated from Hartree-Fock-Bogolibov ... -
A study on structural evolution of Nd142-164 isotopes
Kara, Seyit O.; Bayram, Tuncay; Akkoyun, Serkan (IOP PUBLISHING LTD, 2014)Constrained Hartree-Fock-Bogoliubov theory with SLy5 Skyrme force has been applied for even-even Nd142-164 isotopes to investigate the structural evolution of Nd isotopic chain. In this work, ground-state energies and ...
