Перегляд за автором "Karas’, V.I."

Результати 1-12 з 12

Charged particle (CP) acceleration by an intense wake-field (WF) excited in plasmas by either laser pulse (LP) or relativistic electron bunch (REB)

Balakirev, V.A; Karas, I.V.; Karas’, V.I.; Levchenko, V.D.; Bornatici, M. (Вопросы атомной науки и техники, 2003)

In the present paper the results from theoretical and experimental studies as well as from 2.5-D numerical simulation of both the plasma WF excitation by either REB or LP and the CPWF acceleration are discussed. The results ...
Excitation of Langmuir oscillations in a semi-infinite dense plasma by laser pulse

Balakirev, V.A.; Karas’, I.V.; Karas’, V.I.; Fainberg, Ya.B.; Tolstoluzhsky, A.P. (Вопросы атомной науки и техники, 2005)

Nonlinear mechanism of Langmuir wave excitation in dense plasma by intensive laser pulse has been investigated. Laser pulse has frequency ω=ω p /2 (where ω p is electron plasma frequency).
Low pressure discharge induced by microwaves with stochastically jumping phase

Karas’, V.I.; Artamoshkin, A.M.; Alisov, A.F.; Bolotov, O.V.; Golota, V.I.; Karas’, I.V.; Yegorov, A.M.; Zagrebelny, I.A.; Potapenko, I.F.; Starostin, A.N. (Вопросы атомной науки и техники, 2012)

We study the gas discharge, initiated by microwave radiation with stochastically jumping phase (MWJP) in a coaxial waveguide in the optimal mode of the beam-plasma generator. In this paper we experimentally examine optical ...
Low pressure discharge initiated by microwave radiation with stochastically jumping phase

Karas’, V.I.; Artamoshkin, A.М.; Alisov, А.F.; Bolotov, О.V.; Golota, V.I.; Karas’, I.V.; Yegorov, А.М.; Zagrebelny, I.А.; Potapenko, I.F. (Вопросы атомной науки и техники, 2012)

Present results continue the line of the previous research. In this paper the conditions of a microwave discharge ignition, its stable maintenance in air by MWRSJP, and the pressure range at which required power is minimal ...
Numerical simulation of high-current ion beam transportation at the presence of compensating electron beams in a LIA section

Karas’, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2017)

Transportation of a high-current ion beam (HCIB) with various currents was studied in the presence of accom-panying and additional electron beams' injection in the linear induction accelerator (LIA) section. The investigations ...
On the mechanisms of strong magnetic field excitation at the interaction of ultraintense short laser pulse with an plasma target

Karas’, V.I.; Batishchev, O.V.; Bornatici, M. (Вопросы атомной науки и техники, 2003)

By means of a 2.5 - dimensional numerical simulation on the macroparticles method it is possible to find the magnetic field spatial and temporal distribution without usage an adapted parameter unlike of the conventional ...
Particle dynamics in the injector of ion linear induction accelerator

Karas’, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2019)

The investigations of the particle dynamics in the injector of a linear induction accelerator (LIA) in the presence of an accelerating electric field and a uniform longitudinal magnetic field of various magnitudes have ...
Penetration of microwave with a stochastic jumping phase (MSJP) into overdense plasmas and electron collisionless heating by it

Karas’, V.I.; Levchenko, V.D. (Вопросы атомной науки и техники, 2003)

The results from a theoretical study as well as from numerical simulation of either direct or inclined incident to boundary vacuum-overcritical density plasma of the linearly polarized electromagnetic waves are discussed. ...
Relativistic electron beam pinching in plasma and cumulation of ions

Fainberg, Ya.B.; Balakirev, V.A.; Karas’, I.V.; Karas’, V.I. (Вопросы атомной науки и техники, 2005)

A process of the high-current relativistic electron beam pinching propagating in plasma has been considered. A time of pinching of an electron - ion system has been defined. Maximum compression ratio, the ion density and ...
Relativistic electron bunch excitation of plasma wake-field and charged particle acceleration in the presence of external magnetic field

Balakirev, V.A.; Karas’, V.I.; Karas’, I.V. (Вопросы атомной науки и техники, 2001)

The report is devoted to the theoretical study and numerical simulation of the excitation of wake-fields in plasma and their application for charged particle acceleration. It is shown that at a given relationship between ...
The energy spectra of secondary electron emission induced by fast ions

Karas’, V.I.; Kononenko, S.I.; Muratov, V.I. (Вопросы атомной науки и техники, 2001)

It is shown that the distribution function of secondary electrons of ion-induced emission from the front and back surfaces of thin Ag, Cu, Ni foils can be approximated by the power-law function with different power indices ...
Нigh-current ion beam compensation in a section of an induction linac

Karas’, V.I.; Kornilov, E.A.; Manuilenko, O.V.; Tarakanov, V.P.; Fedorovskaya, O.V. (Вопросы атомной науки и техники, 2018)

The particle transport dynamics in the section of a linear induction accelerator (LIA) has been studied. The system and beams parameters (the magnetic field magnitude, the system dimensions, the beams parameters), ...

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