We investigate the stability against the onset of Rayleigh-Taylor modes of a thin plasma foil accelerated by the radiation pressure. We are interested in the process of ion acceleration in the interaction between a plasma foil and an ultraintense laser pulse in the so-called Radiation Pressure Dominated Regime. We show that in the relativistic regime the Rayleigh-Taylor instability develops more slowly than in the non-relativistic regime. We show that the onset of the Rayleigh-Taylor-like instability leads to the formation of high-density, high-energy plasma clumps and to a relatively higher rate of ion acceleration in the regions between the clumps.

Ion acceleration and stability in the radiation pressure dominated regime

PEGORARO, FRANCESCO;
2009-01-01

Abstract

We investigate the stability against the onset of Rayleigh-Taylor modes of a thin plasma foil accelerated by the radiation pressure. We are interested in the process of ion acceleration in the interaction between a plasma foil and an ultraintense laser pulse in the so-called Radiation Pressure Dominated Regime. We show that in the relativistic regime the Rayleigh-Taylor instability develops more slowly than in the non-relativistic regime. We show that the onset of the Rayleigh-Taylor-like instability leads to the formation of high-density, high-energy plasma clumps and to a relatively higher rate of ion acceleration in the regions between the clumps.
2009
Pegoraro, Francesco; Bulanov, Sv
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/127807
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