Выпуск 2019 года

 

Недавние добавления

  • 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

  • Electron-hole capture centers in an irradiated K2SO4 -Cu crystal 

    Nurakhmetov, T.N.; Salikhodzha, Zh.M.; Bakhtizin, R.Z.; Zhunusbekov, A.M.; Kainarbay, A.Zh.; Daurenbekov, D.H.; Sadykova, B.M.; Zhangylyssov, K.B.; Yussupbekova, B.N. (2019)
    The methods of vacuum-ultraviolet and thermal activation spectroscopy were used to measure the excitation spectra of impurity radiation in the fundamental absorption band of K 2 SO 4 -Cu crystals at 15 K and 300 K. An energy transfer was detected from the base to Cu + impurities. The band gap of crystals K 2 SO 4 was estimated. In K 2 SO 4 -Cu crystals, recombination radiation ...
    2023-12-04

  • An analysis of cross-sections of 9Be + 28Si interaction in the framework of the double-folding model 

    Kabyshev, A.M.; Kuterbekov, K.A.; Azhibekov, A.K.; Bekmyrza, K.Zh.; Mukhambetzhan, A.M.; Kenzhebek, M.K.; Sovetkhanov, Ye.K.; Yeltay, Zh.A. (2019)
    In this paper the experimental data on the differential cross sections for elastic scattering of 9 Be ions on 28 Si nucleus at the energies of the incident nucleus ranging from 12 to 201.6 MeV were analyzed in the framework of the double-folding model using the Paris NN-potential CDM3Y. A good agreement with the experimental angular distributions of differential cross sections ...
    2023-12-04

  • Shell model calculations for deformed Li isotopes 

    Azhibekov, A.K.; Samarin, V.V.; Kuterbekov, K.A.; Naumenko, M.A. (2019)
    The nuclear shell model and its application to studying the structure of nuclei with deformed and spherical shapes are discussed. Calculations of level energies and wave functions in the shell model of deformed and spherical nuclei are performed for 7,8,11Li nuclei. A detailed calculation scheme for solving the radial Schrodinger equation is presented.
    2023-12-04