2,5-dimensional numerical simulation of propagation of the finite sequence of relativistic electron bunches (REB) in tenuous and dense plasmas

2002 ◽  
Author(s):  
V.I. Karas ◽  
Ya.B. Fainberg ◽  
V.D. Levchenko ◽  
Yu.S. Sigov
Keyword(s):  
Numerical Simulation ◽  
Relativistic Electron ◽  
Finite Sequence ◽  
Dense Plasmas ◽  
Electron Bunches

scholarly journals HOMOGENEOUS FOCUSING FIELD FOR SHORT RELATIVISTIC ELECTRON BUNCHES IN PLASMA

2020 ◽  
pp. 68-72
Author(s):  
V.I. Maslov ◽  
I.P. Levchuk ◽  
D.S. Bondar ◽  
I.N. Onishchenko
Keyword(s):  
Numerical Simulation ◽  
Relativistic Electron ◽  
Electron Bunches

Plasma wake lens in which all short relativistic electron bunches of sequence are focused identically and uniformly is studied analytically and by numerical simulation. For two types of lenses necessary parameters of focused sequence of relativistic electron bunches are formulated. Verification of these parameters is performed by numerical simulation.

scholarly journals DEPENDENCE OF WAKEFIELD EXCITATION IN PLASMA BY NON-RESONANT SEQUENCE OF ELECTRON BUNCHES ON THEIR LENGTHS

2021 ◽  
pp. 65-69
Author(s):  
D.S. Bondar ◽  
A.P. Boychenko ◽  
V.I. Maslov ◽  
I.N. Onishchenko ◽  
R.T. Ovsiannikov
Keyword(s):  
Numerical Simulation ◽  
Growth Rate ◽  
Relativistic Electron ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Electron Bunches

The present paper describes the results of numerical simulation (using 2d3v code LCODE) of the regime, when the wakefield is excited at maximum growth rate in the plasma by a nonresonant sequence of relativistic electron bunches. As a result, the wakefield increases approximately in steps. The paper gives the parameters, at which this regime is achieved. It is shown that for smaller bunch radii, the amplitude of the excited wakefield is larger. At long lengths of the bunches, the amplitude of the wakefield is larger, in contrast to the excitation by the resonant sequence of bunches.

scholarly journals INCREASE OF EFFICIENCY OF ACCELERATION OF THE TEST ELECTRON BUNCH BY SEQUENCE OF ELECTRON BUNCHES IN THE RECTANGULAR DIELECTRIC RESONATOR AT PLASMA FILLING

2019 ◽  
pp. 53-57
Author(s):  
P.I. Markov ◽  
I.N. Onishchenko ◽  
G.V. Sotnikov
Keyword(s):  
Numerical Simulation ◽  
Electric Field ◽  
Relativistic Electron ◽  
Plasma Density ◽  
Dielectric Resonator ◽  
Electron Bunch ◽  
Linear Growth ◽  
Energy Gain ◽  
Electron Bunches ◽  
Test Electron

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 density is provided. We have found out that at change of plasma density the linear growth of energy gain of test bunch electrons is observed. It is connected with structure ordering of longitudinal accelerating electric field in the resonator and also with increase in its amplitude. It is due to that at periodic injection of drive bunches on resonator axis the areas with the increased plasma electrons density are formed.

scholarly journals WAKEFIELDS AND DRIVE ELECTRON BUNCHES DYNAMICS IN THREE-ZONE DIELECTRIC RESONATOR AT ASYMMETRICAL INJECTION

2019 ◽  
pp. 58-62
Author(s):  
K.V. Galaydych ◽  
R.R. Kniaziev ◽  
G.A. Krivonosov ◽  
I.N. Onishchenko ◽  
G.V. Sotnikov
Keyword(s):  
Spatial Distribution ◽  
Relativistic Electron ◽  
Dielectric Resonator ◽  
Numerical Study ◽  
Particle Dynamics ◽  
Axial Injection ◽  
Electron Bunches

A numerical study of the wakefield excitation in a rectangular dielectric-loaded resonator by a sequence of relativistic electron bunches in the case of non-axial injection is carried out. The effect of the shift of injected bunches on the particle dynamics, as well as on the spatial distribution of the components of the bunch-excited fields, is studied. The current losses of a sequence of relativistic electron bunches due to the particles deposition on the surface of the dielectric is determined.

Numerical simulation of relativistic electron energy spectrum measurement based on graphite slices calorimeter

2010 ◽  
Vol 22 (4) ◽  
pp. 918-922
Author(s):  
张信军 Zhang Xinjun ◽  
王亮平 Wang Liangping ◽  
呼义翔 Hu Yixiang ◽  
吴撼宇 Wu Hanyu ◽  
李岩 Li Yan
Keyword(s):  
Numerical Simulation ◽  
Energy Spectrum ◽  
Relativistic Electron ◽  
Electron Energy ◽  
Electron Energy Spectrum ◽  
Spectrum Measurement
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