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P: Fachverband Plasmaphysik

P 21: Laser Plasmas - Poster

P 21.5: Poster

Mittwoch, 7. März 2018, 16:15–18:15, Zelt West

Optimal conditions for laser-plasma generation of monoenergetic ion beams — •Maitreyi Sangal, Matteo Tamburini, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Heidelberg, Germany

Radiation pressure acceleration in the light sail (LS) regime is an attractive ion acceleration mechanism where an ultra-thin solid-density foil illuminated by a super-intense laser pulse can, in principle, be accelerated as a whole, therefore yielding a very dense and quasi-monoenergetic ion beam. However, especially due to the onset of instabilities and to the foil deformation, the quasi-monoenergetic features of the ion beam spectrum are still unsatisfactory for several important applications such as ion-beam therapy.

In our study, we aim at identifying the optimal laser and target parameters to produce dense and collimated ion beams with substantially improved monoenergetic features. Simple analytical modeling is supported by multidimensional particle-in-cell (PIC) simulations.