5-10 May 2019
MedILS
Europe/Berlin timezone

Fingerprinting Multi-Species Effects in PW-Class Laser-Ion Acceleration

Not scheduled
20m
MedILS

MedILS

Meštrovićevo šetalište 45 HR – 21000 Split Republic of Croatia
Poster Contribution Laser-driven ion acceleration

Speaker

Mr Axel Huebl (Helmholtz-Zentrum Dresden-Rossendorf)

Description

Spectral signatures of laser-accelerated ion beams are frequently used to characterize underlying acceleration mechanisms. Yet regularly, more than just one ion species are accelerated in experiments, e.g. from hydro-carbon contamination layers, multiple charge states or mixed materials. Such presence of multiple ion species ($q/m$) in the accelerating field leads to characteristic modulations in observed proton spectra due to electro-static repulsion during co-propagation. Resulting typical spectral modulations from these effects are presented with an analytical model for PW-class laser-ion acceleration. We improve previous predictions with explicit multi-species interaction for arbitrary mixtures, enabling us to connect important ensemble properties of laser-accelerated electrons with spectral signatures of accelerated ions. We support our new model with extensive particle-in-cell simulations and propose an experimental implementation with a novel cryogenic target, allowing systematic verification of our predictions in an environment without the strong influence of hardly controllable processes such as ionization dynamics.

Working group Laser-driven ion acceleration

Primary author

Mr Axel Huebl (Helmholtz-Zentrum Dresden-Rossendorf)

Co-authors

Mr Martin Rehwald (Helmholtz-Zentrum Dresden-Rossendorf) Mrs Lieselotte Obst-Huebl (Helmholtz-Zentrum Dresden-Rossendorf) Mr Tim Ziegler (Helmholtz-Zentrum Dresden-Rossendorf) Mr Marco Garten (Helmholtz-Zentrum Dresden-Rossendorf) Mr René Widera (Helmholtz-Zentrum Dresden-Rossendorf) Karl Zeil (Helmholtz-Zentrum Dresden-Rossendorf) Prof. Thomas E. Cowan (Helmholtz-Zentrum Dresden-Rossendorf) Michael Bussmann (Helmholtz-Zentrum Dresden-Rossendorf) Ulrich Schramm (Helmholtz-Zentrum Dresden-Rossendorf) Thomas Kluge (Helmholtz-Zentrum Dresden-Rossendorf)

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