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P: Fachverband Plasmaphysik
P 16: Poster Session Plasma Physics
P 16.47: Poster
Donnerstag, 19. März 2026, 13:45–15:45, Redoutensaal
Simulation of electron swarms in cylindrical magnetrons and their interaction with a boundary — •Gibran Brune1, Lukas Vogelhuber1, Kevin Köhn1, Dennis Krüger1, Jens Kallähn1, Yulia Sharova1, Liang Xu2, Denis Eremin1, and Ralf Peter Brinkmann1 — 1Institute of Theoretical Electrical Engineering, Ruhr University Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany — 2School of Physical Science and Technology, Soochow University, Suzhou 215006, China
In this work, the motion of electrons in a cylindrical magnetron is simulated using predefined analytical electric and magnetic fields. Electrons are modeled as particles with an initial Maxwell-Boltzmann velocity distribution and are uniformly initialized within the simulation domain. Particle trajectories are computed using the Boris algorithm formulated in cylindrical coordinates. Due to the underlying geometry, the magnetic field exhibits azimuthal symmetry typical of cylindrical planar magnetron configurations. A diagnostic routine is employed to evaluate electron impacts on the cathode. This simplified simulation yields characteristic impact profiles in a realistic geometry and provides insights into electron dynamics and their dependence on the magnetic field configuration. Furthermore, more complex boundary interactions are investigated under simplified conditions.
Keywords: Low temperature plasmas; Magnetron discharges; Electron dynamics; Cylindrical; Boundary interactions