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P: Fachverband Plasmaphysik

P 13: Laser Plasmas I

P 13.1: Hauptvortrag

Donnerstag, 23. März 2023, 11:00–11:30, CHE/0089

Acceleration of spin-polarized ion beams from laser-plasma interaction — •Lars Reichwein¹, Markus Büscher^2,3, and Alexander Pukhov¹ — ¹Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany — ²Peter Grünberg Institut (PGI-6), Forschungszentrum Jülich, 52425 Jülich, Germany — ³Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany

Spin-polarized particles are of interest for a variety of applications such as fusion, where the use of spin-polarized reactants may increase the nuclear cross-section, or further investigation of the nucleon structure by means of deep inelastic scattering. In recent years, the acceleration of such polarized particles via laser-plasma interaction has gained traction in research due to the short acceleration distances needed compared to conventional accelerators. While several schemes for efficient proton and ion acceleration are generally known, many of them are not feasible for polarized beams since the target needs to be pre-polarized. In our talk, we give an overview of the current experimental and theoretical state-of-the-art for polarized ion beams. Two acceleration mechanisms, Magnetic Vortex Acceleration and Collisionless Shock Acceleration, will be studied by means of particle-in-cell (PIC) simulations. These schemes can be used to obtain highly polarized ion beams even in the regime of near-future laser facilities.