Abstract
The emission of multi-MeV multiple-charged ions from a thin metallic target irradiated by a short pulse laser in the range of intensity 1016–20 W/cm2 is investigated via a full kinetic particle-in-cell simulations including transient plasma ionization. Ions over MeV energy are accelerated from non-low-Z matter with up to a 10% conversion from laser energy. The anisotropy of the electron velocity distribution is found to enhance the ion energy and improve the emittance.
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