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Vlasov simulations of very-large-amplitude-wave generation in the plasma wake-field accelerator |
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Posting HistoryNEW AbstractSimulations of the plasma wake-field accelerator are carried out by following the time evolution of the plasma distribution function in one dimension via the Vlasov-Maxwell equations. Simulation results are compared to numerical solutions of the nonlinear relativistic cold plasma equations and to previous theoretical estimations of trapping and thermal effects on plasma waves. It is found that highly nonlinear wakes are obtainable in the vicinity of the driving beam; where the thermal velocity spread of the plasma is reduced. In this region; wake amplitudes can significantly exceed the expectations of relativistic warm plasma models and agree closely with cold fluid theory. In all cases; however; particle trapping and thermalization due to particle scattering from the large-amplitude plasma wave reduce the wake to below the nonrelativistic wave-breaking limit after the initial accelerating peak.
BibTeX record RIS record1d 2006 2d 3d abcd abel ablation above-threshold absolute absorption acceleration accelerator accuracy acoustic acousto-optic action activation adaptive adiabatic afterburner air alfven algorithm alignment all-to-all alpha alternating-gradient aluminum amplification amplifier amplitude analog analysis analytic angiography angle angstrom angular anharmonic annealing anomalous antihydrogen anti-particle aperiodical aperture application approximation aprc arbitrary architecture argon arrival arrow ase astrophysics asymmetry atmosphere atom atomic attosecond auger autocorrelation axial azimuthal back background backscattering backward bang barnes barrier basis bbo bcc bcs beam beam-echo beamline beams beat bec bell bem bending bessel-gaus beta betacool beta-decay betatron bethe bethe-larkin big binary biological birefringence black blackbody b-like block blowout blue-detuned b-meson boa body-fitted bogoliubov boltzmann boring bose-einstein boson boundary bow box bpu 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yukawa zakharov zeeman zeptosecond zeroth zetawatt