Eurasian journal of physics and functional materials: Недавние поступления

Отображаемые элементы 41-60 из 80

    • Suitability testing of polyethylene terephthalate film as a solid-state nuclear track detector for using in radon studies 

      Yerimbetova, D.; Stepanenko, V.; Kozlovskiy, A.; Zhumadilov, K. (2020)
      The present work describes the procedure for testing the suitability of a polyethylene terephthalate film (after irradiation with heavy ions it is widely used in various fields) as an alpha-track detector. The test was carried out in order to determine the prospects for the use of this film in studies evaluating the indoor and outdoor radon concentrations. The study was conducted ...
      2023-12-04

    • Calculation of proton transfer cross sections in the 14N +12 C reaction at 116 MeV using the DWBA method 

      Azhibekov, A.K.; Kuterbekov, K.A.; Kabyshev, A.M.; Mukhambetzhan, A.M. (2020)
      The proton transfer in the reaction 12C( 14N,13 C) 13N are discussed. Calculations of level energies in the shell model of deformed and spherical nuclei are performed for 14N nuclei. The present theoretical analysis of the 12C( 14N,13 C) 13N reaction at 116 MeV was performed by means of the FRESCO code. Our theoretically calculated differential cross sections give a fair ...
      2023-12-04

    • Evolution of structural and magnetic parameters of nickel nanotubes under irradiation of Fe7+ ions 

      Shumskaya, A.; Kaniukov, E.; Shlimas, D.; Zdorovets, M.; Kozlovskiy, A. (2020)
      This work is devoted to investigations of nickel nanotubes behavior under influence of swift heavy ion irradiation. High-energy irradiation initiates damage process inside nanostructures and can cause the appearance of new phases with interesting properties. To understand the basic principles of the evolution of structural and magnetic parameters of nanostructures under the ...
      2023-12-04

    • A spatial localization of structural degradation areas in the single crystal turbine blades by means of a neutron tomography method 

      Nazarov, K.M.; Kichanov, S.E.; Lukin, E.V.; Rutkauskas, A.V.; Savenko, B.N. (2020)
      The single crystal nickel-based superalloy turbine blades have been studied by means of a neutron tomography method as a non-destructive structural probe. Differences in neutron attenuation coefficients inside volume of metal bodies of the turbine blades have been found. Those observed differences could be associated with inner structural incoherence areas arising in the process ...
      2023-12-04

    • A ROOT-based program for analysing data on T-odd asymmetry in the neutron-induced fission of heavy nuclei 

      Berikov, D.B.; Ahmadov, G.S.; Kopatch, Yu.N.; Zhumadilov, K.Sh. (2020)
      This paper presents a ROOT based program that allows processing the data from experiments on the ROT-asymmetry in the angular distribution of fission products and present the results of the experiment in a convenient and visual form. The program can work with huge data sets and detect very subtle effects. The algorithm used by the program is given in this work. The overall ...
      2023-12-04

    • Comparison of calculated by DFTB electronic excitation energies of CdS nanosized clusters with DFT results 

      Aldongarov, A.A.; Assilbekova, A.M.; Irgibaeva, I.S.; Mantel, A.I. (2020)
      Nano-dimensional crystalline cadmium sulfide is a semiconductor that exhibits size-dependent optoelectronic properties, determined by the effects of quantum confinement. Due to these effects, it is possible to adjust the optical properties of the final cadmium sulfide clusters by varying their size. In this work we report the results of a theoretical study of CdS nanoparticles ...
      2023-12-04

    • Study of the strength characteristics and radiation resistance of thin-film coatings based on CuX (X=Bi, Mg, Ni) 

      Shlimas, D.I.; Kozlovskiy, A.L.; Kaliekperov, M.E.; Kadyrzhanov, K.K.; Uglov, V.V. (2020)
      The paper presents the results of changes in the strength characteristics of thin-film coatings based on compounds of copper-bismuth, copper-magnesium, copper-nickel. The dependences of the influence of the phase composition on the strength characteristics, such as the coefficient of friction, bending strength and impact coefficient, are established. The effect of irradiation ...
      2023-12-04

    • Determination of radon levels in dwellings and social objects and evaluation annual effective dose from inhalation of radon in Stepnogorsk area Northern Kazakhstan 

      Ibrayeva, D.S.; Aumalikova, M.N.; Ilbekova, K.B.; Bakhtin, M.M.; Kazymbet, P.K. (2020)
      Radon is a noble gas that is one of the natural radioactive decay products of radium resulting from the disintegration of uranium. Humans are exposed to sources of natural radiation activity, being radon and its progeny breathing air responsible for more than 50% of the annual dose received from natural radiation. The aim of this study was to determine the radon concentration ...
      2023-12-04

    • Determination of the target parameters using the Monte Carlo method for an experiment on inelastic neutron scattering in different samples at the "TANGRA" installation 

      Dabylova, S.B.; Kopatch, Yu.N.; Sakhiev, S.K.; Grozdanov, D.N.; Fedorov, N.A. (2020)
      Using the tagged neutron method at the "TANGRA" facility at Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research based on the ING-27 standard neutron generator, a study of the 14.1 MeV inelastic neutron scattering reaction on different nuclei was carried out. The angular distributions of γ - quanta accompanying inelastic neutron scattering on atomic ...
      2023-12-04

    • Assessment of the dose burden and health status of the uranium processing workers of the Republic of Kazakhstan 

      Aumalikova, M.N.; Ibrayeva, D.S.; Ilbekova, K.; Kazymbet, P.K.; Bakhtin, M.M.; Janabaev, D.D.; Altaeva, N.Z. (2020)
      The main objective of current study is to assess the dose burden and health status of workers at the uranium processing hydrometallurgical plant in order to develop measures aimed at reducing their incidence. This article presents the results of radiation monitoring and data on the health status of workers at the hydrometallurgical plant of the Stepnogorsk Mining and Chemical ...
      2023-12-04

    • Determination of the response function of the NaI detector for γ-quanta with an energy of 4.43 MeV, formed during inelastic scattering of neutrons with an energy of 14.1 MeV on carbon nuclei 

      Dabylova, S.B.; Kopach, Yu.N.; Sakhiyev, S.K.; Grozdanov, D.N.; Fedorov, N.A. (2020)
      The work is devoted to determining the response function of the detector NaI(Tl) for γ -quanta with energy of 4.43 MeV, formed during inelastic scattering of neutrons with energy of 14.1 MeV on the nuclei 12 C. In gamma spectrometry, output pulses are recorded, the amplitudes of which are proportional to the energy lost in the detection medium by incident photons. One of the ...
      2023-12-04

    • Neutron pick-up reactions in 18O (10 MeV/nucleon) + Ta 

      Lukyanov, S.; Issatayev, T.; Hue, B.M.; Maslov, V.; Mendibayev, K.; Stukalov, S.S.; Aznabayev, D.; Shakhov, A.; Kuterbekov, K.A.; Kabyshev, A.M. (2020)
      The availability of new radioactive ion beams has broadened the study of nuclear reactions and nuclear structure. The main mechanism to produce the secondary beams is the fragmentation of the projectile. An alternative method for the production of the exotic nuclei is the multinucleon transfer. We measured production cross section for the B, C, N and O isotopes in the reaction ...
      2023-12-04

    • Study of the effect of irradiation on nitride ceramic materials 

      Gladkikh, T.M.; Kozlovskiy, A.L.; Zdorovets, M.V.; Kaniukov, E.Y. (2019)
      The paper presents the results of a study of the effect of proton and ion radiation on structural changes in nitride ceramics, which have a high potential for using as a structural material for GenIV nuclear reactors. Proton beams with an energy of 1.5 MeV and low-energy helium (He 2+ ) and carbon (C 2+ ) ions with an energy of 40 keV were used, to simulate defect formation ...
      2023-12-04

    • Current status of the new fragment separator ACCULINNA-2 and the first-day experiments 

      Gorshkov, A.V.; Belogurov, S.G.; Bezbakh, A.A.; Biare, D.; Beekman, W.; Chudoba, V.; Fomichev, A.S.; Golovkov, M.S.; Gazeeva, E.M.; Grigorenko, L.V.; Kaminski, G.; Krupko, S.A.; Mauyey, B.; Muzalevsky, I.A.; Nikolskii, E.Yu.; Parfenova, Yu.L.; Serikov, A.; Sidorchuk, S.I.; Slepnev, R.S.; Sharov, P.G.; Ter-Akopian, G.M.; Wolski, R.; Zalewski, B. (2019)
      The commissioning of the new fragment separator ACCULINNA-2 at FLNR JINR is accomplished. The separator is destined to expand the possibilities in studies of dripline nuclei performed with the exotic secondary radioactive ion beams (RIBs) at energies of (5 – 50) AMeV. The projected high transmission and purification level were confirmed experimentally for a number of RIBs in ...
      2023-12-04

    • DFT calculation of optical properties of new neutral hexacoordinated Si(bzimpy)2 complexes 

      Bimukhanov, A.N.; Aldongarov, A.A.; Schmedake, T.A. (2019)
      We consider optical properties of 4 neutral hexacoordinated Si(bzimpy) 2 complexes, containing the 2,6- bis(benzimidazol-2 ′ -yl) pyridine ligand using DFT method. The geometrical parameters of the optimized cluster structures, the electronic absorption spectrum, and the molecular orbitals of the structures under consideration are discussed. The effect of addition of the ...
      2023-12-04

    • The effect of irradiation with swift heavy ions on the structural and morphological properties of beryllium oxide ceramics 

      Kozlovskiy, A.L.; Ryskulov, A.E.; Uglov, V.V.; Kislitsin, S.B. (2019)
      In this study the results of structural and morphological changes in Ni 12+ heavy ion irradiated BeO ceramics are presented. Irradiation was carried out on DC-60 heavy ion accelerator using Ni 12+ ions with an energy of 100 MeV with irradiation fluence of 10 13 -10 14 ions/cm 2 . It has been determined that change in magnitude of atom displacements from lattice sites is ...
      2023-12-04

    • Total reaction cross sections of neutron-rich light nuclei measured by the COMBAS fragment-separator 

      Erdemchimeg, B.; Artukh, A.G.; Davaa, S.; Hue, B.M.; Isataev, T.; Klygin, S.A.; Kononenko, G.A.; Khuukhenkhuu, G.; Lukyanov, S.M.; Mikhailova, T.I.; Maslov, V.A.; Mendibaev, K.; Sereda, Yu.M.; Penionzhkevich, Yu.E.; Vorontzov, A.N. (2019)
      Preliminary results of measurements of the total reaction cross sections σR for nuclei 4 He, 6 He, 8 He, 7 Li, 8 Li, 9 Li, 11 Li, 7 Be, 9 Be, 10 Be, 11 Be, 12 Be, 8 B, 10 B, 11 B and 12 B nuclei at energy range (10-50) AMeV with 28 Si target is presented. The secondary beams of light nuclei were produced by bombardment of the 15N (50 AMeV) primary beam on Be target and separated ...
      2023-12-04

    • Break-up reactions of 6Li, 7Be and 8B 

      Issatayev, T.; Lukyanov, S.M.; Sereda, Yu.M.; Artukh, A.G.; Aznabayev, D.; Borcea, C.; Calinescu, S.; Erdemchimeg, B.; Hue, B.M.; Kabyshev, A.M.; Klygin, S.A.; Kononenko, G.A.; Kuterbekov, K.A.; Mendibayev, K.; Ostashko, V.V.; Penionzhkevich, Yu.E.; Rotaru, F.; Thiep, T.D.; Vorontsov, A.N. (2019)
      Secondary beams ( 6 Li, 7 Be, 8 B) were obtained by the separation of fragmentation products of a 15 N ion beam (50 MeV/A) impinging on a Be target using the COMBAS spectrometer. The secondary products were detected by a telescope consisting of five Si-detectors (dE) and a stop CsI(Tl) detector. The telescope allowed us to achieve unambiguous particle identification of fragments ...
      2023-12-04

    • The effect of high-temperature annealing on the phase transformations of the perovskite YTiO3−x system 

      Mustakhieva, D.A.; Zhumataeva, I.Z.; Kozlovsky, A.L.; Kadyrzhanov, K.K. (2019)
      This paper presents the results of a study of the structural characteristics of perovskite systems based on YTiOx. These samples were subjected to heat treatment in the process of solid-phase synthesis. The change in physicochemical properties was investigated by scanning electron microscopy, X-ray structural and energy dispersive analysis. In the course of the work, it was ...
      2023-12-04

    • MD and TEM evaluation of swift Xe ion induced latent tracks in Si3N4 

      Rymzhanov, R.A.; Zhalmagambetova, A.; Ibrayeva, A.; Janse van Vuuren, A.; O’Connell, J.H.; Skuratov, V.A. (2019)
      As known silicon nitride ceramics is considered as a candidate material for inert matrix fuel hosts used for transmutation of minor actinides. Unfortunately, by now very limited data is devoted to investigate of its stability under high energy heavy ion irradiation simulating fission fragment impact. Aim of our present study is a comparative analysis of parameters of latent ...
      2023-12-04