München 2019 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 18: Postersitzung

P 18.114: Poster

Donnerstag, 21. März 2019, 16:30–18:30, Foyer Audimax

Observation of plasma profiles evolution relevant for magnetic reconnection at VINETA.II — •Tiziano Fulceri1, Adrian von Stechow1, and Olaf Grulke1,21Max-Planck Institut für Plasmaphysik, Wendelsteinstrasse 1, 17489 Greifswald, Deutschland — 2Technical University of Denmark, Anker Engelunds Vej 1 Bygning 101A, 2800 Kgs. Lyngby, Denmark

VINETA.II is an experimental device suitable for the investigation of magnetic reconnection in laboratory plasmas. A fast-swept (100 kHz) Langmuir probe is used to reconstruct electron temperature, electron density, and plasma potential profiles with about 10 microsecond time-step. A magnetic probe is used to reconstruct the magnetic field, current density, and inductive electric field profiles with about 1 microsecond time-step. Both diagnostics have a length-resolution of 1 cm. The evolution of both a stationary ECRH background plasma and a transient electron-gun plasma can be observed within a 300 microsecond timeframe. Reconstructed profiles are interpreted within the framework of MHD. The results are discussed in relation to a future upgrade of the experiment aimed at investigating the propagation of the reconnection signal in different conditions.

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