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Перегляд Вопросы атомной науки и техники, 2015, № 4 за назвою

Репозиторій DSpace/Manakin

Перегляд Вопросы атомной науки и техники, 2015, № 4 за назвою

Сортувати за: Порядок: Результатів:

  • Focusing of relativistic electron bunches by nonresonant wakefield excited in plasma 
    Maslov, V.I.; Levchuk, I.P.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2015)
    Focusing of relativistic electron bunches by nonresonant wakefield, excited by them in plasma, is investigated by numerical simulation. For a good focusing bunches are placed optimally relatively to the excited wave. For ...
  • Formation of discrete spatial temporal structures in the nonstationary inhomogeneous plasma 
    Buts, V.A.; Kovalchuk, I.K. (Вопросы атомной науки и техники, 2015)
    The traditional approach in the linear electrodynamics is using of spectral method. However, in many cases, the physical process is defined by large number of spectral components. In this case the spectral approach is not ...
  • Forward and backward electron emission in binary cell of radioisotope current source 
    Kononenko, S.I.; Zhurenko, V.P.; Kalantaryan, O.V.; Semerenskiy, A.A. (Вопросы атомной науки и техники, 2015)
    It was shown that ratio of forward and backward yields for Ti-Ti binary cell of the SERICS was close to other materials. Isotropic emission of alpha particles from the surface of radioisotope source led to dependency of ...
  • Fractal analysis of the fractal ultra-wideband signals 
    Chernogor, L.F.; Lazorenko, O.V.; Onishchenko, A.A. (Вопросы атомной науки и техники, 2015)
    The results of fractal analysis of the fractal ultra-wideband (FUWB) signals were proposed. With usage of the continuous wavelet transform the time-frequency structure of that signals was investigated. Calculating the box ...
  • HE- and EH-hybrid waves in a circular dielectric waveguide with an anisotropic impedance surface 
    Shcherbinin, V.I.; Zaginaylov, G.I.; Tkachenko, V.I. (Вопросы атомной науки и техники, 2015)
    The boundary-value problem for a circular dielectric waveguide with an anisotropic impedance boundary is reduced to two independent problems. Thus the hybrid waves of different types are shown to be uncoupled in such ...
  • Helicity of the toroidal vortex with swirl 
    Bannikova, E.Yu.; Kontorovich, V.M.; Poslavskii, S.A. (Вопросы атомной науки и техники, 2015)
    On the basis of solution of the Bragg-Hawthorne equations it is shown that relationship of the helicity of toroidal swirling vortex with circulations along the small and large linked circles depends on distribution of ...
  • Hollow cathode discharge in low pressure oxygen: transient mode 
    Bazhenov, V.Yu.; Matsevich, S.V.; Piun, V.M.; Tsiolko, V.V. (Вопросы атомной науки и техники, 2015)
    Glow characteristics of the discharge with cylindrical hollow cathode at oxygen pressure in a range of 0.015…0.09 Torr are determined. Dependencies of radial electric field in the plasma on the discharge parameters are ...
  • Ignition and break-down of the gas discharge in magnetic field 
    Zykov, A.V.; Azarenkov, N.A. (Вопросы атомной науки и техники, 2015)
    The characteristics of the low pressure discharge in crossed electric and magnetic fields in the cases of magnetically insulated diode and electron anode layer with free cathode boundary are described. The phenomenal theory ...
  • Influence of component content of Ar/O₂ mixture on oxygen dissociation degree in plasma of low pressure discharge with hollow cathode 
    Bazhenov, V.Yu.; Lavrookevich, Yu.V.; Piun, V.M.; Ryabtsev, A.V.; Tsiolko, V.V. (Вопросы атомной науки и техники, 2015)
    Influence of argon content in Ar/O₂ mixture on O₂ dissociation degree and atomic oxygen concentration in the plasma of low pressure glow discharge with hollow cathode is determined experimentally and theoretically. It is ...
  • Inter-electrode distance effect on dc discharge characteristics in nitrogen 
    Lisovskiyс, V.A.; Artushenko, K.P.; Yegorenkov, V.D. (Вопросы атомной науки и техники, 2015)
    This paper studies the inter-electrode distance effect on voltage drop across it and cathode sheath thickness. The voltage across the electrodes and the sheath thickness are found to increase when the anode moves away from ...
  • Ion cyclotron turbulence in plasma of lower hybrid cavities in the Earth’s ionosphere 
    Chibisov, D.V. (Вопросы атомной науки и техники, 2015)
    The linear and nonlinear stages of the ion cyclotron instability in plasma of lower hybrid cavities in the Earth's ionosphere are investigated. Because these structures are cylindrically symmetric, the analysis uses the ...
  • Ion kinetics and ion sound generation under the development of modulation instability of an intense Langmuir wave in a plasma 
    Kirichok, A.V.; Kuklin, V.M.; Pryimak, A.V.; Zagorodny, A.G. (Вопросы атомной науки и техники, 2015)
    The development of one-dimensional parametric instabilities of intense long-wave plasma waves is considered in terms of the so-called hybrid models, when electrons are treated as a fluid and ions are regarded as particles. ...
  • Ion microbeam formation for study of radiationinduced segregation at grain boundaries in construction materials 
    Romanenko, A.V.; Ponomarov, A.A.; Ponomarev, A.G. (Вопросы атомной науки и техники, 2015)
    The approaches for creating focused ion beams with a high current density and near-uniform current distribution in a spot, that allows an uniform dose for further micro irradiation technique, were considered. A numerical ...
  • Kapitsa pendulum and principle of whirligig 
    Buts, V.A. (Вопросы атомной науки и техники, 2015)
    A comparison of the mechanism of stabilization of unstable states of physical systems in a rapidly oscillating external field (on example the Kapitsa’s pendulum) with a whirligig type stabilization mechanism is presented ...
  • Low-frequency generation by ionizing femtosecond laser pulse supplied by its second or half-harmonic 
    Laryushin, I.D.; Kuznetsov, L.S.; Kostin, V.A.; Silaev, A.A.; Vvedenskii, N.V. (Вопросы атомной науки и техники, 2015)
    We calculate the free-electron residual current density excited in a gas by ionizing two-color femtosecond laser pulses containing an intense component centered at 800-nm and a weaker 400-nm (second-harmonic) or 1600-nm ...
  • Mathematical model antennas, based on modulated plazmon-polariton structures 
    Hoblyk, V.V. (Вопросы атомной науки и техники, 2015)
    Presents a review of development of the theory of plasmon-polariton structures and nanoantennas based on them. It shows the method for solving the problem of excitation of impedance structures, modulated by multiple periodic ...
  • Modelling of superradiation processes driven by an ultra-short bunch of charged particles moving through a plasma 
    Kirichok, A.V.; Kuklin, V.M.; Mischin, A.V.; Pryimak, A.V. (Вопросы атомной науки и техники, 2015)
    The specific features of the superradiation processes excited by an ultra-short 1D monoenergetic bunch of charged particles, which moves through a plasma, are examined. When the size of the bunch is less then the wavelength ...
  • Multikiloampere magnetron gun with secondary emission at relativistic voltage 
    Cherenshchykov, S.A. (Вопросы атомной науки и техники, 2015)
    Magnetron gun for voltage up 1000 kV and current more 1 kA was tested in pulse mode. The secondary emission nature of the cathode current was established. The identification was held basing on considered features of the ...
  • Numerical investigation of the formation of chemically active components in the spark discharge in water vapors 
    Vinnikov, D.V.; Korytchenko, K.V.; Sakun, A.V. (Вопросы атомной науки и техники, 2015)
    The numerical investigation of the formation of chemically active components and a change in the thermodynamic parameters of the spark discharge at the values of the initial pressure of water vapors 10⁵ and 0.4·10⁵ Pa was ...
  • Numerical simulation of pulsed plasma thruster with a preionization helicon discharge 
    Kuzenov, V.V.; Polozova, T.N.; Ryzhkov, S.V. (Вопросы атомной науки и техники, 2015)
    The major electrical characteristics of pulsed coaxial magneto-plasma accelerator with a capacitive power source are calculated on the basis of approximate mathematical model of pulsed plasma thruster, preionization system ...

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