Abstract
Proton and carbon ion acceleration in a target-normal-sheath-acceleration regime produced by a laser intensity of 1016 W/cm2 was investigated using thin polyethylene foils. Measurements performed at the PALS facility in Prague demonstrate forward ion acceleration above 1 MeV per charge state. The ion acceleration is higher in thinner polymeric foils. In order to increase the emission yield of the proton and carbon ions, the target thickness should be enhanced, but this choice reduces drastically the ion acceleration. The use of highly absorbing stuff, such as carbon nanotubes embedded inside a polymer, enhances the ion acceleration but results in a broad ion energy distribution and a low amount of the highly accelerated ion species.
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