Перегляд за автором "Karas, V.I."

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Changes in physical-mechanical properties and structure of ferritic-pearlitic steel 15Kh2NMFA caused by severe low-temperature deformation and exposure to alternating magnetic field

Sokolenko, V.I.; Mats, A.V.; Karas, V.I.; Okovit, V.S.; Chernyak, N.A.; Gorbatenko, V.M. (Физика низких температур, 2015)

It is shown for the low-plasticity ferritic-pearlitic steel 15Kh2NMFA (2Cr, 1Ni, 0.5Mn, 0.5Mo), subjected to severe rolling deformation at 90 K, that the treatment by the alternating magnetic field results in a substantial ...
Charge compensation and acceleration of a thick-walled high-current ion beam in induction linac

Belova, N.G.; Karas, V.I.; Shulika, O.N. (Вопросы атомной науки и техники, 1999)

At present, several methods of obtaining highcurrent ion beam, which are based on the use of induction accelerators and are applied to inertial controlled fusion (ICF) research, are being considered.
Computer simulation of high-current diode: from field emission to space charge limited current flow

Manuilenko, O.V.; Karas, V.I.; Kornilov, E.A.; Vinokurov, V.A.; Antipov, V.S. (Вопросы атомной науки и техники, 2015)

The results of numerical simulation of electron beam dynamics in the high-current diode with a blade-like cathode, which operates in the field emission regime, are presented. The computer simulations were performed by ...
Computer simulation of high-current ion bunches transport and acceleration with additional space charge compensation by thermal electrons

Manuilenko, O.V.; Karas, V.I. (Вопросы атомной науки и техники, 2014)

The particle in cell simulation results, within the limits of the complete set of the Maxwell-Vlasov equations, of the short (the ion bunch length is much smaller than the cusp length) and long (the ion bunch length is ...
Differential equations for integral scales of semiempirical developed-turbulence тheory

Karas, V.I.; Maljkhanov, V.P. (Вопросы атомной науки и техники, 2000)
Dynamics of high-current ion beam in the drift gap of induction accelerator at different variants of charge compensation

Karas, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2014)

In this paper the dynamics of the high-current ion beam (HIB), compensated by the electron beam by current density and partly by charge, in the drift gap (DG) of the linear induction accelerator with the collective focusing ...
Dynamics of the high-current ion beam in a section of the linear induction accelerator

Karas, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2015)

The dynamics of the high-current ion beam (HCIB) in a section of the linear induction accelerator (LIA), consisting of magneto-isolated accelerating gap and the two drift spaces, is studied. In the most suitable variant ...
Electron heating and acceleration while magnetosphere substorm due to varying whistler wave phase velocity

Karas, V.I.; Potapenko, I.F. (Вопросы атомной науки и техники, 2007)

Some properties of chorus radiation while magnetosphere substorm are discussed. The influence of the hydro magnetic waves on the electron distribution function is studied by numerical simulations. A quasi-linear 2D in ...
Experimental study of secondary emission radioisotope current source prototype

Kononenko, S.I.; Kalantaryan, O.V.; Kolesnik, V.T.; Muratov, V.I.; Karas, V.I.; Filippenko, V.E. (Вопросы атомной науки и техники, 2008)

The results of experimental investigations of prototype of secondary emission radioisotope current source are presented. Novel physical idea of nuclear particle energy conversion into electricity by means of secondary ion ...
Influence of Alternating Magnetic Field on Physical and Mechanical Properties of Crystals

Karas, V.I.; Karasyova, E.V.; Mats, A.V.; Sokolenko, V.I.; Vlasenko, A.M.; Zakharov, V.E. (Металлофизика и новейшие технологии, 2016)

The results of the investigation of creep characteristics and activation parameters of polycrystalline nickel (of 99.996% purity) plastic flow at the temperature of 77 K are presented. The influence of nonstationary magnetic ...
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 ...
Numerical modeling of high current ion beam transport with additional injection of electron beams in drift and accelerating gaps of LIA

Karas, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2016)

The dynamics of a high-current ion beam (HCIB) in the system, consisting of magneto-isolated accelerating gap and the drift gap (DG) of the experimental model of linear induction accelerator (LIA) has been studied. The ...
Optical radiation special features from plasma of low pressure discharge initiated by microwave radiation with stochastic jumping phase

Karas, V.I.; Alisov, А.F.; Bolotov, О.V.; Golota, V.I.; Karas, I.V.; Yegorov, А.М.; Zagorodny, A.G.; Zagrebelny, I.А.; Potapenko, I.F. (Вопросы атомной науки и техники, 2013)

We study the plasma discharge, initiated by microwave radiation with stochastically jumping phase (MWRSJP) in a coaxial waveguide at the optimal mode of the beam-plasma generator. Present results continue the line of the ...
Plasma wake-field acceleration of charged particles by selfmodulated long relativistic electron bunch

Karas, V.I.; Balakirev, V.A.; Fainberg, Ya.B.; Sotnikov, G.V.; Karas, I.V.; Levchenko, V.D. (Вопросы атомной науки и техники, 2000)

- High-amplitude plasma wake-waves are excited by high-density relativistic electron bunches (REB) moving in a plasma. The wake- fields can be used to accelerate charged particles, to serve as electrostatic wigglers in ...
Quasi steady-state distributions for collisional plasmas in the presence of energy and particle sources

Potapenko, I.F.; Karas, V.I. (Вопросы атомной науки и техники, 2005)

The formation of a non-equilibrium distribution function (DF) of particles with the power-law interaction potentials is studied. Consideration is based on the non-linear kinetic equation of a Landau - Fokker - Planck type ...
Radiation electronics

Karas, V.I. (Вопросы атомной науки и техники, 2007)

Article is review of works on nonequilibrium electron distribution function formation at a presence of sources and sinks in momentum space. The analitical investigations and numerical simulation of the nonlineat collision ...
Relativistic electron bunch excitation of wake fields in magnеtoactive plasma

Balakirev, V.A.; Karas, V.I.; Karas, I.V.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2000)

We have been demonstrated that a multiple excess of the accelerated bunch energy εmax over the energy of the exciting. REB is possible in a magnetoactive plasma at a certain relationship between the parameters of the ...
Stability of the high-current ion beam compensated by electron beam in the induction LINAC drift gap filled with the dense electron cloud

Karas, V.I.; Kornilov, Ye.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V.; Silkin, M.Yu. (Вопросы атомной науки и техники, 2013)

In the work an injection of high-current electron and ion beams in a drift gap of the linear induction accelerator with collective focusing is studied. Consideration is carried out by means of numerical simulation by ...
Stability of the high-current ion beam in drift gap of linear induction accelerator

Karas, V.I.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2013)

The results of numerical simulation of compensated ion beam (CIB) transport with current density 9 MA/m² through the drift gap of a linear induction accelerator (LIA) are presented. The CIB stability for the three methods ...
Studies of microwave characteristics and plasma parameters in low pressure discharge initiated in coaxial waveguide by stochastic radiation

Karas, V.I.; Alisov, А.F.; Golota, V.I.; Yegorov, А.М.; Karas, I.V.; Karelin, S.V.; Zagrebelny, I.А. (Вопросы атомной науки и техники, 2015)

The research methods are described and the principal characteristics of the generated oscillations are studied. We study the plasma discharge, initiated by microwave radiation with stochastically jumping phase (MWRSJP) in ...

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