Hannover 2016 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 5: Poster Session- Helmholtz Graduate School for Plasma Physics
P 5.29: Poster
Montag, 29. Februar 2016, 16:30–19:00, Empore Lichthof
Current sheet formation during driven magnetic reconnection — •Benjamin Brünner1, Olaf Grulke1, and Thomas Klinger1,2 — 1Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Wendelsteinstraße 1, D-17491 Greifswald — 2Institut für Physik, Ernst-Moritz-Arndt Universität Greifswald, Felix-Hausdorff-Straße 6, D-17489 Greifswald
Magnetic reconnection is a plasma phenomenon where magnetic energy is transfered into kinetic energy and heating of the particles during fast topological changes of opposing magnetic field lines. A crucial part of this process is a localized current sheet which forms along the magnetic X-line.
VINETA II is a experimental device with an open field line configuration for the study of magnetic reconnection. The reconnection is externally driven via current-carrying straight conductors inside the vessel to provide an inductive electric field. A plasma gun is used as an electron source to assist the formation of the current sheet.
Previous investigations of the current sheet have been made at driving frequencies much larger then the ion cyclotron frequency, resulting in essentially static ions during the reconnection process. In this work a low frequency drive, which is operating below the ion cyclotron frequency, is presented and the influence of the ion contribution to the current sheet is studied.