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2.5D simulation of plasma wakefield excitation by a nonresonant train of relativistic electron bunches

Lotov, K.V.; Maslov, V.I.; Onishchenko, I.N.; Svistun, E.N. (2010)

By using 2d3v code LCODE the investigations in detail of the reconstruction of a long nonresonant train of relativistic electron bunches into resonant one at plasma wakefield excitation are presented. Because of bunch ...
Accelerating field excitation, occurrence and evolution of electron beam near Jupiter

Maslov, V.I.; Fomina, A.P.; Kholodov, R.I.; Levchuk, I.P.; Nikonova, S.A.; Novak, O.P.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2018)

When electron beam, formed Io-Jupiter penetrates into Jupiter plasma the beam-plasma instability develops. Then electron distribution function becomes wider by excited fields. These electrons cause UV polar light. The ...
Accelerating of the electrons of electron bunches in a waveguide loaded dielectric structure

Linnik, A.F.; Onishchenko, I.N.; Omelayenko, O.L.; Pristupa, V.I.; Sotnikov, G.V.; Us, V.S. (Вопросы атомной науки и техники, 2021)

The paper presents some results of experimental studies of the excitation of wake fields and the acceleration of electrons in waveguide-dielectric structures (DS) upon injection of a sequence of electron bunches into them. ...
Acceleration and focusing of electron bunches by wakefields in plasma produced in neutral gas by a nonresonant sequence of bunches

Kiselev, V.A.; Linnik, A.F.; Onishchenko, I.N.; Pristupa, V.I. (Вопросы атомной науки и техники, 2012)

It is experimentally investigated the possibility of accelerating and focusing of relativistic electron bunches by wakefields excited by their sequence in plasma, produced during its passage through the neutral gas, caused ...
Acceleration of a high-current proton beam in a linear induction accelerator at its compensation by electron beams

Fedorovskaya, O.V.; Maslov, V.I.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2022)

The dynamics of a high-current proton beam in the cusp magnetic field and in the uniform magnetic field of the drift region in the presence of an accelerating field in the cusp region and of two types of compensating ...
Acceleration of compensated high-current ion beam with cusp magnetic electron insulation in the accelerating gap and subsequent compensation with an electron beam

Fedorovskaya, O.V.; Maslov, V.I.; Onishchenko, I.N. (Problems of Atomic Science and Technology, 2023)

2.5D simulation of the process of the magnetic isolation of electrons and the acceleration of ions when injecting a high-current ion beam, compensated by an electron beam, into a magnetic cusp with an accelerating gap, ...
Acceleration of electrons at wakefield excitation by a sequence of relativistic electron bunches in dielectric resonator

Kiselev, V.A.; Linnik, A.F.; Mirnyj, V.I.; Onishchenko, I.N.; Uskov, V.V. (Вопросы атомной науки и техники, 2009)

Method is proposed to divide a regular sequence of electron bunches into parts of bunches driving wakefield and witness bunches, which should be accelerated. It allows to avoid the necessity of additional electron accelerator ...
A method for maintaining the acceleration rate and increasing the energy of self-injected bunch due to the use of inhomogeneous plasma

Bondar, D.S.; Maslov, V.I.; Onishchenko, I.N. (Problems of Atomic Science and Technology, 2023)

The paper considers the process of excitation of a wakefield in a plasma by a laser pulse. The plasma density corresponds to the density of free electrons in the metal. A method is demonstrated for keeping self-injected ...
Amplitude of vortical turbulence in crossed fields in separator of spent nuclear fuel at optimum parameters

Levchuk, I.P.; Maslov, V.I.; Onishchenko, I.N.; Yegorov, A.M.; . Yuferov, V.B. (Вопросы атомной науки и техники, 2016)

Properties and excitation of the vortical turbulence, excited in a cylindrical radially inhomogeneous plasma in crossed radial electric and longitudinal magnetic fields of separator of spent nuclear fuel, are considered. ...
Cherenkov radiation of a laser pulse in ion dielectrics

Balakirev, V.A.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2019)

The process of excitation of Cherenkov electromagnetic radiation by a laser pulse in ion dielectric waveguide is investigated. Nonlinear electric polarization in isotropic ion dielectric medium and, accordingly, polarization ...
Cherenkov radiation of the electron bunch in dielectric media with frequency dispersion

Balakirev, V.A.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2019)

Excitation of the Cherenkov electromagnetic radiation by a relativistic electron bunch in a dielectric waveguide is considered taking into account the frequency dispersion of the dielectric permittivity. Electric polarization ...
Cherenkov radiation of the relativistic electron bunch in ion dielectric media

Balakirev, V.A.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2019)

The process of wakefields excitation by the relativistic electron bunch in dielectric media with ion type of chemical bond is studied. The spatio-temporal structure of the excited wakefield in ion dielectric waveguide is ...
Comparative analysis of excitation of LSM and lSE waves by a bunch train in dielectric loaded rectangular resonator

Marshal, T.C.; Onishchenko, I.N.; Sotnikov, G.V (Вопросы атомной науки и техники, 2006)

The results of a three-dimensional analysis of wake field excitation in a slab-symmetric dielectric-loaded resonator by rigid electron bunches are presented. The complete set of solutions, including the solenoidal and ...
Concept of plasma-dielectric wakefield accelerator. Theory and experiment

Berezina, G.P.; Galaydych, K.V.; Kniaziev, R.R.; Linnik, A.F.; Markov, P.I.; Omelayenko, O.L.; Onishchenko, I.N.; Pristupa, V.I.; Sotnikov, G.V.; Us, V.S. (Вопросы атомной науки и техники, 2015)

The wakefield excitation by a long sequence of relativistic electron bunches in a dielectric waveguide/resonator of round cross-section with transit channel filled with plasma of various densities was theoretically and ...
Confinement theorem for high-current plasma lens

Goncharov, A.A.; Maslov, V.I.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2000)

The theorem about a fraction of magnetized electrons, which could reach the cylindrical wall, is generalized for the case of collisionless plasma lens for focusing of ion beams. Long electron column is considered. The ...
Control of characteristics of self-injected and accelerated electron bunch in plasma by laser pulse shaping on radius, intensity and shape

Maslov, V.I.; Bondar, D.S.; Grigorencko, V.; Levchuk, I.P.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2019)

At the laser acceleration of self-injected electron bunch by plasma wakefield it is important to form bunch with small energy spread and small size. It has been shown that laser-pulse shaping on radius, intensity and shape ...
Cumulation and acceleration of ions by TW femtosecond laser pulse

Balakirev, V.A.; Dovbnya, A.N.; Yegorov, A.M.; Krasnogolovets, M.A.; Onishchenko, I.N.; Onishchenko, N.I.; Povrozin, A.I.; Pristupa, V.I. (Вопросы атомной науки и техники, 2004)

A new method of ion cumulation and acceleration at three-dimensional compression of plasma in the ”light trap” created in the focal region of the high-power femtosecond laser is theoretically studied. The ”light trap” ...
Current flow dynamics in plasma opening switch

Manuilenko, O.V.; Onishchenko, I.N.; Pashchenko, A.V.; Pashchenko, I.A.; Yuferov, V.B. (Вопросы атомной науки и техники, 2021)

The electromagnetic fields and processes of current flow in the plasma channel of the plasma opening switch were considered in the electron hydrodynamics approximation. Taking into account the nature and features of the ...
Cylindrical wiggler based on the solenoid loaded with different magnetic properties rings

Kopiychenko, D.Yu.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2004)

The electrodynamics analysis of topography of constant magnetic fields originating in spatially periodic system is carried out. The system under investigation is the solenoid inside which rings from materials with different ...
Decontamination of drug vegetative raw material by relativistic electron beam

Gorbanyuk, A.G.; Dikiy, I.L.; Egorov, A.M.; Zemliansky, N.M.; Kiselev, V.A.; Linnik, A.F.; Mirny, V.I.; Onishchenko, I.N.; Uskov, V.V. (Вопросы атомной науки и техники, 2004)

The new technology of decontamination of drug vegetative raw material and medical products is proposed. Advantages of use of relativistic beams in a range of electron energies from 0.5 MeV to 5 MeV for these purposes ...

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