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Proton and light-ion acceleration to relativistic GeV energies by the superstrong laser radiation interacting with a structured plasma target
Authors:A V Korzhimanov  A A Gonoskov  A V Kim  A M Sergeev
Institution:1.Institute of Applied Physics,Russian Academy of Sciences,Nizhni Novgorod,Russia
Abstract:A new scheme is proposed for proton and light-ion acceleration to relativistic energies by superstrong laser radiation interacting with a structured plasma target. The proposal consists in the use of two-component targets consisting of heavy and light ions, where an ambipolar field is formed under the action of the ponderomotive force of incident radiation, and, in contrast to the traditional schemes, acceleration starts from the front boundary of the layer. It is shown that, for the optimized target parameters, monoenergetic GeV ion beams can be produced for radiation pulse intensities on the order of 1021−1022 W/cm2.
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