Перегляд за автором "Girka, I.O."

Сортувати за: Порядок: Результатів:

  • Azimuthal surface waves in toroidal magnetic traps 
    Girka, I.O.; Girka, O.I.; Girka, V.O.; Pavlenko, I.V. (Вопросы атомной науки и техники, 2008)
    Extraordinary polarized electromagnetic surface waves are known to propagate with zero axial wave number (kz=0) along the small azimuth j nearby the interface of a cold uniform plasma located in cylindrical metal chambers ...
  • Change of radioactive waste characteristics at their processing and storage at nuclear power plants 
    Rudychev, V.G.; Girka, I.O.; Rudychev, Y.V.; Kaplij, A.A.; Shchus, O.P.; Sokoltsova, T.O. (Вопросы атомной науки и техники, 2015)
    This paper offers some methods developed for calculation of radiation from the casks for storage of radioactive wastes (RW) at the nuclear power plant (NPP) area. Monte Carlo method was used to calculate spectral-angular ...
  • Contribution of radionuclides to heat release in the process of SNF dry storage 
    Rudychev, V.G.; Azarenkov, M.O.; Girka, I.O.; Rudychev, Y.V.; Shchus, O.P. (Вопросы атомной науки и техники, 2017)
    In the paper the radionuclide contribution to heat release at dry storage of spent nuclear fuel (SNF) of WWER-1000 was researched. β- and γ-radiation from 60 of the most active fission products, and α-radiation from 20 ...
  • Coupled HF azimuthal waves in magnetoactive waveguide partially filled by current-carrying plasma 
    Girka, O.I.; Girka, I.O.; Girka, V.O.; Pavlenko, I.V. (Вопросы атомной науки и техники, 2006)
    Coupled surface extraordinarily polarized waves and bulk ordinarily polarized waves are proved to propagate along azimuthal direction in the cylindrical metal waveguide that is partially filled by cold magneto-active ...
  • Determination of chemical composition of implanted nanolayers by analysis of their optical properties 
    Mysiura, I.N.; Girka, I.O.; Gritsyna, V.T. (Functional Materials, 2012)
    The method for determining the composition of nanolayer from the experimental spectra of optical transmission and reflection was developed. Modeling of the optical properties of the composite was carried out on the basis ...
  • Discretized collision operator for simulations of fusion non-maxwellian plasma relaxation 
    Shyshkin, O.A.; Vozniuk, D.V.; Girka, I.O. (Вопросы атомной науки и техники, 2018)
    The plasma observed in modern fusion devices very often exhibits strongly non-Maxwellian distribution. This is the result of magnetic field lines reconnection with formation of magnetic resonant structures like magnetic islands ...
  • Effect of the minority ions on the ICRF heating of fusion plasmas 
    Pavlenko, I.V.; Girka, I.O.; Leviga, B.I. (Вопросы атомной науки и техники, 2012)
    Additional plasma heating, for example ICRF (Ion Cyclotron Range of Frequencies) heating, allows heating only a group of the fuel particles which will initiate the thermonuclear fusion reaction. But the ICRF heating scenarios ...
  • Efficiency of the dose rate calculation by Monte-Carlo method and point kernel method when handling radioactive waste 
    Rudychev, V.G.; Azarenkov, N.A.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2018)
    For the gamma-radiation sources with the volume up to 1 m³ , filled with typical radioactive waste generated at NPPs with WWER-1000 reactors, the results of the dose rate (DR) calculations made by Monte-Carlo (MCNP) ...
  • Fast Alfvén wave propagation in milticomponent nonuniform plasmas 
    Kazakov, Ye.O.; Pavlenko, I.V.; Girka, I.O.; Weyssow, B. (Вопросы атомной науки и техники, 2008)
    The problem of the conversion, reflection and transmission of the fast Alfvén wave propagating in multicomponent nonuniform plasmas is studied. The dependences of the wave scattering characteristics on the plasma composition ...
  • Fast wave mode conversion in multicomponent nonuniform plasmas 
    Kazakov, Ye.O.; Pavlenko, I.V.; Girka, I.O.; Weyssow, B. (Вопросы атомной науки и техники, 2008)
    The ICRF mode conversion heating scenario relevant to the start-up phase of ITER operation is studied. The 1D theory of fast wave (FW) propagation in fusion plasmas is applied to study the inverted ICRF (³He)H scenario ...
  • ICRF heating of hydrogen plasmas with two mode conversion layers 
    Kazakov, Ye.O.; Van Eester, D.; Lerche, E.; Pavlenko, I.V.; Girka, I.O.; Weyssow, B. (2010)
    ICRF mode conversion heating regime is widely used in present-day tokamaks. The theoretically predicted mode conversion enhancement due to the constructive interference of the fast wave reflected from the evanescence layer ...
  • Macroparticles in beam-plasma systems 
    Bizyukov, A.A.; Girka, I.O.; Romashchenko, E.V.; Chibisov, O.D. (Вопросы атомной науки и техники, 2016)
    The macroparticle (MP) contamination is the most important technological problem of vacuum arc deposition of coatings. The results of theoretical study of MP charging and dynamics in the near-substrate sheath are ...
  • Precision of a FDTD method to simulate cold magnetized plasmas 
    Pavlenko, I.V.; Melnyk, D.A.; Prokaieva, A.O.; Girka, I.O. (Вопросы атомной науки и техники, 2014)
    The finite difference time domain (FDTD) method is applied to describe the propagation of the transverse electromagnetic waves through the magnetized plasmas. The numerical dispersion relation is obtained in a cold plasma ...
  • Propagation of the fast magnetosonic wave through the generalized Budden barrier 
    Kazakov, Ye.O.; Pavlenko, I.V.; Girka, I.O. (2010)
    Propagation of the fast magnetosonic wave through the generalized Budden barrier, which is formed by the ion-ion hybrid resonance and the accompanying L-cutoff, is studied. Analytical expressions for the transmission, ...