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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 8: New Accelerator Concepts
AKBP 8.2: Vortrag
Dienstag, 17. März 2020, 14:45–15:00, HSZ 301
Ion acceleration from ultra-thin foil targets using a PW-class laser with optimized temporal pulse profile — •Tim Ziegler1,2, Constantin Bernert1,2, Florian-Emanuel Brack1,2, Stefan Bock1, Lennart Gaus1,2, Stephan Kraft1, Florian Kroll1, Josefine Metzkes-Ng1, Thomas Pueschl1, Martin Rehwald1,2, Hans-Peter Schlenvoigt1, Ulrich Schramm1,2, and Karl Zeil1 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2TU Dresden, Dresden, Germany
Laser-driven ion acceleration promises to provide a compact solution for demanding applications like radiobiological experiments. Controlling the particle beam parameters to achieve these goals is currently pushing the frontier of laser driven particle accelerators. The acceleration performance is strongly dependent on the complex plasma formation processes which in turn are determined by the temporal laser intensity profile and spatio-temporal couplings on a large dynamic range.
We present experimental results on the interaction of the DRACO Petawatt ultra-short pulse laser with ultra-thin foil targets. A combination of particle and plasma diagnostics for ions and electrons as well as reflected and transmitted light revealed clear indications of acceleration in the relativistic transparency regime. Furthermore, the implementation of a large suite of laser pulse diagnostic directly at the experimental area enabled an unprecedented level of laser pulse property characterization which allowed the laser plasma interaction to be optimized with extraordinary high precision and effectiveness.