Перегляд за автором "Sotnikov, G.V."

Результати 21-40 з 66

Focusing of electron bunches in the plasma-dielectric rectangular slowing-down structure

Markov, P.I.; Kniaziev, R.R.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2016)

Results of analytical and numerical researches of excitation of wakefield and dynamics of the charged particles in the plasma-dielectric rectangular slowing-down structure are provided. Based on that the analytics in ...
Focusing of positron bunch when moving in electron bunch wakefield in the dielectric waveguide filled with plasma

Sotnikov, G.V.; Knyazev, R.R.; Markov, P.I.; Onishchenko, I.N. (Вопросы атомной науки и техники, 2021)

The results of numerical PIC-simulation of focusing accelerated (test) positron and drive electron bunches in the dielectric waveguide filled with radially heterogeneous plasma with the vacuum channel are given in the ...
Formation of periodical magnetic fields by sequence of rings with different electric and magnetic properties

Kopiychenko, D.Yu.; Onishchenko, I.N.; Sotnikov, G.V.; Pushkarev, S.S.; Prokopenko, Yu.V.; Chupikov, P.T.; Medvedev, D.V. (Вопросы атомной науки и техники, 2004)

The electrodynamics analysis of topography of magnetic fields originating in spatially periodic system is carried out. The system under investigation is the solenoid inside which rings made from materials differ in electric ...
General solution of the excitation problem of a symmetric flat dielectric structure by plane electromagnetic waves

Vasiliev, A.V.; Povrozin, A.I.; Sotnikov, G.V. (Problems of Atomic Science and Technology, 2023)

General solution of the excitation problem of a symmetric flat dielectric structure by two laser pulses is obtained. The symmetrical geometry consists of two dielectric prisms separated by a vacuum channel for electron ...
Increase of efficiency of acceleration of the test electron bunch by sequence of electron bunches in the dielectric resonator

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2018)

Results of numerical simulation of the test bunch acceleration by relativistic electron bunch sequence in the cylindrical dielectric resonator of terahertz frequency range are provided. If the bunch spacing equals to the ...
Increase of efficiency of acceleration of the test electron bunch by sequence of electron bunches in the rectangular dielectric resonator at plasma filling

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2019)

A result of numerical simulation of acceleration of the test electron bunch following a sequence of relativistic electron bunches in the rectangular dielectric resonator when filling the drift channel with plasma of different ...
Interaction of modulated REB with plasma, formed at its transit through high-density neutral gases

Kiselev, V.A.; Linnik, A.F.; Onishchenko, I.N.; Sotnikov, G.V.; Uskov, V.V. (Вопросы атомной науки и техники, 2003)

The theoretical and experimental results of investigations of the relativistic electron beam interactions with plasma, created during its penetration into neutral gas of large pressure, are presented. It is shown that by ...
Investigation of multibunch wakefield excitation in dielectric compound-resonator

Berezina, G.P.; Galaydych, K.V.; Krivonosov, G.A.; Linnik, A.F.; Omelaenko, O.L.; Onishchenko, I.N.; Pristupa, V.I.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2018)

Theoretical and experimental studies of the wakefield excitation in a dielectric compound-resonator by the train of electron bunches injected from the "Almaz-2M" accelerator are presented. The compound-resonator is a ...
Investigation of parameters of electron and positron bunches in a plasma-dielectric wakefield accelerator

Markov, P.I.; Kniaziev, R.R.; Sotnikov, G.V. (Problems of Atomic Science and Technology, 2023)

The results of numerical PIC-simulation of the dynamics of accelerated positron and drive electron bunches under wake acceleration in a dielectric waveguide filled with plasma with a vacuum channel are presented. The wake ...
Mathematical model of an excitation by electron beam of “whispering gallery” modes in cylindrical dielectric resonator

Galaydych, K.V.; Lonin, Yu.F.; Ponomarev, A.G.; Prokopenko, Yu.V.; Sotnikov, G.V. (2010)

For generation of oscillations of millimeter and submillimeter wave lengths can be used "whispering gallery" modes excited in a dielectric resonator by an azimuthally-modulated electron beam. The mathematical model of ...
Nonlinear analysis of mm waves excitation by high–current REВ in dielectric resonator

Galaydych, K.V.; Lonin, Yu.F.; Ponomarev, A.G.; Prokopenko, Yu.V.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2012)

A nonlinear self-consistent theory of excitation of millimeter wave lengths electromagnetic fields by high current relativistic azimuthally-modulated electron beam in cylindrical resonator with a dielectric rod is constructed. ...
Numerical simulation of processes in supercritical electron beam at the presence of plasma

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2003)

The first main results of creation of the numerical electromagnetic code "SOM" for research of a virtual cathode at the presence of plasma are presented. The obtained results are the part of the project № 1569 «Development ...
Numerical simulation of the supercritical electron beam dynamics in magnetic field of finite size in the presence of plasma

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2004)

The first results of development of a numerical electromagnetic 2.5-dimensional code «SOM 2.5» (3 dimensional by the velocities and 2 dimensional by the coordinates) for researching of a virtual cathode in the presence ...
Numerical simulation of wakefields excitation in the dielectric structure filled with

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2016)

Results of numerical simulation of wakefield excitation in the dielectric structure filled with plasma created in capillary discharge are given. Three different models of dependence of plasma density on radius were ...
Parameters of two-channel five-zone dielectric structure for experiments on wakefield acceleration in KIPT

Zaleskyi, D.Yu.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2018)

The computations results of the parameters of a two-channel five-zone rectangular dielectric structure for the experimental test of basic principles of using such structures for wakefield acceleration are presented. The ...
PIC simulation of low-frequency modulation of supercritical electron beam at plasma assstancei

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2005)

The results of simulations of virtual cathode dynamics at the presence of plasma are presented. The theoretical analysis of dynamics of the electron-ion formation is based on particle-in-cell method (PIC). Numerical ...
PIC simulation of nonlinear regime wake field excitation in cylindrical resonator

Markov, P.I.; Onishchenko, I.N.; Korzh, A.F.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2006)

The nonlinear mechanism of saturation of wake field amplitude, exited in the cylindrical resonator partially filled with dielectric by relativistic train of electron bunches numerically simulated by means of a specially ...
PIC simulation of nonlinear wakefield excitation by a train of electron bunches in a waveguide with isotropic plasma

Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2008)

The results of analytical investigations and numerical simulation (in 2.5–dimensional electromagnetic code) of nonlinear wake fields excitation by regular sequence of relativistic electron bunches in isotropic (no external ...
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 ...
Probe for measuring the longitudinal component of the electric field in a dielectric wakefield accelerator

Zalesky, D.Yu.; Pristupa, V.I.; Us, V.S.; Sotnikov, G.V. (Problems of Atomic Science and Technology, 2023)

To conduct experiments to determine the amplitude of the electric field and the transformation ratio in the wake field accelerator based on dielectric structures excited by electron bunches of the Almaz-2 electron accelerator, ...

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Перегляд за автором "Sotnikov, G.V."

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