Перегляд за автором "Ostroushko, V."

Сортувати за: Порядок: Результатів:

  • About electron energy increase in discharge with the non-sinusoidal field 
    Ostroushko, V. (Вопросы атомной науки и техники, 2013)
    It is shown that the energy of electrons increases in the case of nonzero value of power spectral density at resonant frequencies irrespective of field strength jumps presence or absence. It is noted the inevitability of ...
  • Attainable electron energy in diode with plasma cathode at the given voltage 
    Ostroushko, V.; Pashchenko, A.; Pashchenko, I. (Вопросы атомной науки и техники, 2019)
    It is considered an acceleration of electrons in a one-dimensional interval, part of which is filled by ions initially compensated by electrons. For the stages of forward motion and backward motion of a part of electrons, ...
  • Azimuthal instability of the pulsed positive glow corona and sinuous streamer trace 
    Bolotov, O.; Golota, V.; Kadolin, B.; Ostroushko, V.; Pashchenko, I.; Zavada, L. (Вопросы атомной науки и техники, 2014)
    The numerical simulations of positive corona at the constant voltage less than streamer mode threshold are carried out. The pulse mode based on photon generation and photo-ionization is obtained, and its simple analytical ...
  • Azimuthal stability of trichel pulses and cathode directed streamers 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2019)
    The numerical simulations of negative corona discharge in Trichel pulse mode are carried out with the calculation of evolution of azimuthal perturbations. It is found the azimuthal instability with increment corresponding ...
  • Electron flow dynamics in resistive gap 
    Pashchenko, A.; Ostroushko, V. (Вопросы атомной науки и техники, 2017)
    It is considered the evolution of electron flow in the short-circuited gap with taking into account of the braking force proportional to velocity. The linear analysis of the stationary states stability is made. For the ...
  • Electron flow stability in the gas filled diode 
    Pashchenko, A.; Ostroushko, V. (Вопросы атомной науки и техники, 2017)
    For the electron fow in the short-circuited diode filled with gas, with taking into account the braking force proportional to velocity, the stationary modes and their linear perturbations are considered. The equation for ...
  • Energy change and space motion of electron in sinusoidal field with random phase jumps or elastic collisions 
    Ostroushko, V. (Вопросы атомной науки и техники, 2015)
    Two different types of electron motion are considered: the one-dimensional motion in the electric field, which time dependence differs from sinusoidal one through instant jumps of phase, and the three-dimensional motion ...
  • Estimation of dimensions of interaction space necessary for particle acceleration in stochastic field 
    Ostroushko, V. (Вопросы атомной науки и техники, 2014)
    It is considered electron acceleration in the field having time dependence, which differs from sinusoidal one with phase jumps introduction. The connection is found between electron energy and characteristic dimension of ...
  • Final stage of cathode directed streamer propagation 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2016)
    The numerical simulations of the cathode directed streamer propagation in the atmospheric air at the constant voltage applied to the discharge gap are carried out. It is found an explanation of the streamer stopping ...
  • Influence of electron emission effectiveness on characteristics of negative corona discharge 
    Bolotov, O.; Golota, V.; Ostroushko, V. (Вопросы атомной науки и техники, 2012)
    To explain the results of experiments with negative corona in Trichel pulse mode it is proposed the assumption about decisive role of photoemission in supply of electrons from cathode. The results of numerical simulations ...
  • Numerical simulation of reproduction of the development conditions of the next trichel pulse in negative corona 
    Ostroushko, V. (Problems of Atomic Science and Technology, 2023)
    Numerical simulations of the negative corona at a constant applied voltage in the Trichel pulse mode are carried out for different contents of an electronegative gas component. The dependences of the total current peak ...
  • Numerical simulations of cathode directed streamer propagation in electronegative gases 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2018)
    The numerical simulations are carried out for the cathode directed streamer propagation at the quasi-stationary stage, far from electrodes, and at the stage of going out to cathode, in the gases with the different ...
  • Quasi-stationary streamer propagation 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2015)
    The numerical simulations are carried out for the quasi-stationary stage of the axially symmetric streamer propagation and for the linear stage of its azimuthal perturbation development. The dependences of the streamer ...
  • Radiation of charge passing by impedance wedge 
    Ostroushko, V. (Вопросы атомной науки и техники, 2021)
    The diffraction radiation generated by a charge passing by a plasma wedge is considered in impedance approximation. In the perfect conductivity limit, the total radiated energy is not varying with the wedge rotation around ...
  • Secondary streamers in the primary streamer channel 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Pugach, S.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2019)
    The propagation of the process with ionization and attachment in the remainder of the streamer channel is studied. From the simplified model consideration it is shown that in the conditions of the attachment instability ...
  • Several peaks of total current in Trichel pulse 
    Bolotov, O.; Golota, V.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2015)
    The numerical simulations of negative corona at constant voltage in Trichel pulse mode are carried out in assumptions of presence and absence of photoemission from cathode. In absence of photoemission two peaks of total ...
  • Total current oscillations in Trichel pulse 
    Bolotov, O.; Golota, V.; Kadolin, B.; Mankovskyi, S.; Markov, P.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2015)
    The numerical simulations of negative corona at constant voltage in air are made. Two peaks of total current in Trichel pulse in absence of photoemission appear for very small values of ion-electron emission coefficient. ...
  • Two peaks of total current in streamer propagation 
    Bolotov, O.; Kadolin, B.; Mankovskyi, S.; Ostroushko, V.; Pashchenko, I.; Taran, G.; Zavada, L. (Вопросы атомной науки и техники, 2020)
    The numerical simulations of the cathode directed streamer propagation in the discharge gap, with the streamer going out to cathode, are carried out. The processes are found, which take place near anode and contribute to ...