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P: Fachverband Plasmaphysik

P 20: Laser Plasmas

P 20.2: Poster

Mittwoch, 15. März 2017, 16:30–18:30, HS Foyer

Collisionless shocks in laboratory plasmas — •shikha bhadoria, naveen kumar, and christoph h. keitel — Max Planck Institute for Nuclear Physics, Heidelberg, Germany

Collisionless shocks are formed when two counter-propagating streams of plasmas are collided. This situation occurs quite often in astrophysical environments e.g when the supernova remnant blast shell hits the interstellar medium etc. This can be envisaged in a laboratory easily by irradiating two energetic laser pulses on thin-foil targets placed opposite to each other. These collisionless shocks are responsible for extreme acceleration of charged particles (e.g. cosmic rays) by Fermi acceleration mechanism, however little is known about their formation process. We present results of collisionless shock formation in such a situation and discuss their implications for ion acceleration in the laboratory.