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Перегляд Відділення ядерної фізики та енергетики за темою "Нелинейные процессы в плазменных средах"

Репозиторій DSpace/Manakin

Перегляд Відділення ядерної фізики та енергетики за темою "Нелинейные процессы в плазменных средах"

Сортувати за: Порядок: Результатів:

  • A.A. Vlasov and collisionless Landau damping 
    Rukhadze, A.A. (Вопросы атомной науки и техники, 2015)
    The main results obtained by A.A. Vlasov in 1944 and published in 1945 are presented. The solution of the initial problem for small perturbations of the longitudinal field in collisionless plasma is givn. For the example ...
  • Bistability in the Duffing oscillator under combined high- and low-frequency forcing 
    Nimets, A.Y.; Vavriv, D.M. (Вопросы атомной науки и техники, 2015)
    The bistablity onset due to the interaction of high- to low-frequency oscillations in the Duffing oscillator is considered. It is shown that such interaction results in arising of additional bistable states, which has a ...
  • Chaotic decayes in resonators filled with rare plasma 
    Antonov, A.N.; Buts, V.A.; Kovalchuk, I.K.; KovpikKovpik, O.F.; Kornilov, E.A.; Svichensky, V.G.; Tarasov, D.V. (Вопросы атомной науки и техники, 2008)
    The results of processes theoretical and experimental investigation of the broadband chaotic HF oscillations in the electrodynamics structure with rare plasma are presented. They are based on the nonlinear decay of HF wave ...
  • Dynamics of explosive instability 
    Buts, V.A.; Koval’chuk, I.K. (Вопросы атомной науки и техники, 2013)
    It was shown that in general case explosive instability dynamics should be described as four wave interaction. The main difference from three wave interaction is that this dynamics may not contain explosive instability. ...
  • Dynamics of ions during development of parametric instability of langmuir waves 
    Belkin, E.V.; Kirichok, A.V.; Kuklin, V.M.; Pryjmak, A.V.; Zagorodny, A.G. (Вопросы атомной науки и техники, 2013)
    Nonlinear regimes of one-dimensional parametric instabilities of long-wave plasma waves are considered for the cases when the average field energy density is less (Zakharov’s model) or greater (Silin’s model) than the ...
  • Dynamics of the modulated electron beam in the inhomogeneous plasma barrier: one-dimentional simulation using PIC method 
    Anisimov, I.O.; Soloviova, M.J. (Вопросы атомной науки и техники, 2008)
    Evolution of the modulated electron beam moving through the plasma barrier was studied via computer simulation using PIC method. Inhomogeneous plasma barrier with parameters corresponding to experimental conditions [1-2] ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Kinetics of nonequilibrium electron-phonon system for semiconductors and metals in a strong electric field 
    Karas, V.I.; Potapenko, I.F.; Vlasenko, A.M. (Вопросы атомной науки и техники, 2013)
    Formation of non-stationary nonequilibrium distribution functions (DF) of electrons and phonons is investigated under the action of a strong pulse electric field on metal. For concreteness parameters were taken for nickel ...
  • Kinetics of the electron distribution function formation and its self-similarity in the course of heating 
    Potapenko, I.F. (2010)
    In many important cases one should treat plasma transport kinetically. In more general sense the solutions of the Landau-Fokker-Planck (LFP) equation, which is one of the key ingredient of plasma kinetic equation, have ...
  • 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 ...
  • Method for particle ensembles control under uncertainty 
    Zadorozhny, V. (Вопросы атомной науки и техники, 2008)
    The paper is devoted to the issues related to nonlinear dynamics of controlled intensive charged particle beams. Study the beams possessing exceptionally large inherent fields and extreme high impulse intensity and energy ...
  • 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 ...
  • On the emission spectrum of oscillator trapped in a potential well 
    Kirichok, A.V.; Kuklin, V.M.; Zagorodny, A.G. (Вопросы атомной науки и техники, 2013)
    We study the spectrum of electromagnetic waves emitted by oscillator, trapped in an external potential well. It is assumed that the natural frequency of the oscillator is much greater than the frequency of oscillations in ...
  • On the formation of pulses of coherent radiation in weakly inverted media 
    Kirichok, A.V.; Kuklin, V.M.; Mischin, A.V.; Pryjmak, A.V.; Zagorodny, A.G. (Вопросы атомной науки и техники, 2013)
    A change in the character of maser generation in a two-level system is found when the initial population inversion exceeds some threshold value equal to the square root of the total number of atoms. Above this threshold, ...
  • Optimization of single-hump imaginary potentials for efficient absorption of the wave function in numerical solution of the time-dependent Schrödinger equation 
    Silaev, A.A.; Vvedenskii, N.V. (Вопросы атомной науки и техники, 2015)
    This work is devoted to the development of the imaginary potential method for efficient absorption of the wave function on the periphery of the computational domain in numerical solution of the time-dependent Schrödinger ...
  • Paradigms of dynamic chaos 
    Buts, V.A. (Вопросы атомной науки и техники, 2013)
    It is shown that a condition of occurrence of regimes with chaotic behavior of dynamic systems demands more steadfast studying. In particular, it is shown that if we will take into account singular solutions the chaotic ...
  • Particle beams from laser-irradiated solids at ultrahigh intensities 
    Nerush, E.N.; Kostyukov, I.Yu. (Вопросы атомной науки и техники, 2013)
    Laser-solid interactions at the intensity range 10²³…10²⁶ W cm⁻² and the plasma density about 10²⁴ cm⁻³ are studied by means of numerical simulations. This range of parameters is extremely important for various laser ...
  • Pattern formation in unstable viscous convective medium 
    Gushchin, I.V.; Kirichok, А.V.; Kuklin, V.M. (Вопросы атомной науки и техники, 2013)
    The convection in a thin layer of liquid (gas) with poorly heat conducting boundaries and with temperature dependent viscosity are considered. The Proctor-Sivashinsky model is examined in order to study both the pattern ...

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