Quasi-neutrality of relativistic laser pulse accelerated proton beam
S.N. Andreev1, V.P. Tarakanov2
1Moscow Polytechnic University, Moscow, Russia
2Joint Institute for High Temperatures of Russian Academy of Sciences, Moscow, Russia
Keywords: proton beam, super-intense laser pulse, PIC simulation, quasi-neutrality
Abstract
Generation of a quasi-neutral beam of protons and electrons during the interaction of an ultra-high intensity laser pulse with an aluminum target with a layer of protons on the rear surface is studied. It is shown that the time of setting the quasi-neutrality of the proton beam is more than five time longer than the laser pulse duration.
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