Relativistic electron beam driven longitudinal wake-wave breaking in a cold plasma

Bera, Ratan Kumar; Mukherjee, Arghya; Sengupta, Sudip; Das, Amita

doi:10.1063/1.4960832

Cited by 14 publications

(16 citation statements)

References 32 publications

(40 reference statements)

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“…Such calculation would need to follow the steps given in Ref. [10] by replacing electron beam with the proton beam. This would also help to calculate the transformer ratio analytically and to understand the underlying mechanism of proton-driven PWFA for several beam densities and beam length, beam velocity.…”

Section: The Model and Resultsmentioning

confidence: 99%

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New Regime of Plasma Wake-Field Acceleration in the Extreme Blowout Regime

Tsiklauri

2019

IEEE Trans. Plasma Sci.

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Three dimensional particle in cell simulations are used for studying proton driven plasma wakefield acceleration that uses a high-energy proton bunch to drive a plasma wake-field for electron beam acceleration. A new parameter regime was found which generates essentially constant electric field that is three orders magnitudes larger than that of AWAKE design, i.e. of the order of 2 × 10 3 GV/m. This is achieved in the the extreme blowout regime, when number density of the driving proton bunch exceeds plasma electron number density 100 times.

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Section: The Model and Resultsmentioning

confidence: 99%

“…Accordingly, they are known as laser wake field acceleration (LWFA) and the latter as plasma wake field acceleration (PWFA). A good progress in PWFA has been made both in experiment and theory [3][4][5][6][7][8][9][10]. Further, Ref.…”

mentioning

confidence: 99%

New Regime of Plasma Wake-Field Acceleration in the Extreme Blowout Regime

Tsiklauri

2019

IEEE Trans. Plasma Sci.

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“…where x D is location of the driving bunch in units of c/ω pe and it has a length of 4.0c/ω pe , as in Figs. 1 and 2 from Bera et al [10], for easy inter-comparison. In Run 1 we put to test fluid-simulation results of Bera et al [10].…”

Section: The Model and Resultsmentioning

confidence: 99%

“…1 and 2 from Bera et al [10], for easy inter-comparison. In Run 1 we put to test fluid-simulation results of Bera et al [10]. The physical parameters are as in their Figure 1 and are stated in table I.…”

Section: The Model and Resultsmentioning

confidence: 99%

Differences in 1D electron plasma wake field acceleration in MeV versus GeV and linear versus blowout regimes

Tsiklauri

2018

Physics of Plasmas

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In some laboratory and most astrophysical situations plasma wake-field acceleration of electrons is one dimensional, i.e. variation transverse to the beam's motion can be ignored. Thus, one dimensional (1D), particle-in-cell (PIC), fully electromagnetic simulations of electron plasma wake field acceleration are conducted in order to study the differences in electron plasma wake field acceleration in MeV versus GeV and linear versus blowout regimes. First, we show that caution needs to be taken when using fluid simulations, as PIC simulations prove that an approximation for an electron bunch not to evolve in time for few hundred plasma periods only applies when it is sufficiently relativistic. This conclusion is true irrespective of the plasma temperature. We find that in the linear regime and GeV energies, the accelerating electric field generated by the plasma wake is similar to the linear and MeV regime. However, because GeV energy driving bunch stays intact for much longer time, the final acceleration energies are much larger in the GeV energies case. In the GeV energy range and blowout regime the wake's accelerating electric field is much larger in amplitude compared to the linear case and also plasma wake geometrical size is much larger. Thus, the correct positioning of the trailing bunch is needed to achieve the efficient acceleration. For the considered case, optimally there should be approximately (90 − 100)c/ωpe distance between trailing and driving electron bunches in the GeV blowout regime.

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“…In this context, a vast number of wave-particle phenomena become particularly interesting when the high power laser causes the electron quiver velocity to become highly relativistic. Among these phenomena, the wake field's generation, [1][2][3][4][5][6] scattering and modulation of the laser pulse, [7][8][9][10] stochastic motion of the electrons [11][12][13][14][15] and wave breaking processes [16][17][18][19] have attracted growing interest due to their vital role in the concept of laser-plasma accelerator. The last case, the wave breaking effect, is one of the most fundamental phenomena in the laser-plasma concept and it is the basis of some chaotic motion of electrons and also acceleration mechanisms such as acceleration initiated by the fluid wave breaking, direct laser acceleration, and acceleration originated from the nonlinear wave breaking via the plasma-vacuum boundary effect.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of the wave-break in the vacuum-plasma interface during the interaction of an intense laser pulse

et al. 2017

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In this paper, the wave break in the plasma-vacuum interface during the intense laser interaction is investigated. Since the nonlinear wave breaking is a non-adiabatic process, the fully kinetic 1D-3V Particle-In-Cell (PIC) simulation experiments are performed to identify whether that the origin of this mechanism is electromagnetic or electrostatic. Our simulation results show that the nonlinear wave breaking on the vacuum-plasma interface has electrostatic origin. In addition, it is found that for pulse lengths exceeding the plasma wavelength this electrostatic phenomenon comes in conjunction with some active electromagnetic effects having the same impact on the electron acceleration. In these regards, we conduct sophisticated simulations isolating these electromagnetic effects and study the effects of the pulse parameters such as the pulse rise time, pulse length, and pulse shape on the boundary nonlinear wave breaking. The study of the pulse rise-time variation effects shows that as the rise time of the laser pulse decreases, the number of the electrons involved in the nonlinear wave breaking, maximum energy of the trapped electrons and the path length of the accelerated electrons in the phase space are increased. Also, the study of phase space and field patterns in our simulation indicates that the reduction of the pulse flat top duration time causes that the smaller part of the electrons and the smaller portion of the wake wave involve in the nonlinear wave breaking.

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Relativistic electron beam driven longitudinal wake-wave breaking in a cold plasma

Cited by 14 publications

References 32 publications

New Regime of Plasma Wake-Field Acceleration in the Extreme Blowout Regime

New Regime of Plasma Wake-Field Acceleration in the Extreme Blowout Regime

Differences in 1D electron plasma wake field acceleration in MeV versus GeV and linear versus blowout regimes

Numerical study of the wave-break in the vacuum-plasma interface during the interaction of an intense laser pulse

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