Mainz 2022 – scientific programme

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P: Fachverband Plasmaphysik

P 9: Poster I

P 9.31: Poster

Tuesday, March 29, 2022, 16:00–17:30, P

Electric field structure and power coupled to the plasma in lattice vortex fields — •Christian Lütke Stetzkamp, Tsanko Vaskov Tsankov, and Uwe Czarnetzki — Institute for Plasma and Atomic Physics, Ruhr University Bochum, D-44780 Bochum, Germany

Recently a novel concept for collisionless electron heating and plasma generation at low pressures was theoretically proposed [1]. It is based on a lattice of vortex fields, which produces certain electron resonances in velocity space.

Here, the power coupled into the plasma is theoretically calculated for generalized lattices and coil forms. Also a way to obtain the power coupling from arbitrary electric field configurations is shown and the performance of the field structure used in the theoretical work [1] is compared to simulated and measured fields.

[1] U. Czarnetzki and Kh. Tarnev, Phys. Plasmas 21, 123508 (2014)