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P: Fachverband Plasmaphysik
P 16: Poster Session Plasma Physics
P 16.48: Poster
Donnerstag, 19. März 2026, 13:45–15:45, Redoutensaal
Electron dynamics in a linear magnetron magnetic field configuration — •Zahra Alinia1, 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
Magnetrons are essential devices in both scientific research and industrial applications. They are highly versatile and are used in a wide range of geometrical configurations. Two prominent configurations are the cylindrical magnetron, characterized by its inherent azimuthal symmetry, and the linear magnetron, which is structurally more complex but of greater industrial relevance. In this work, we employ a particle-based simulation to study electron dynamics in a linear magnetron magnetic configuration. Electrons are traced using the Boris pusher in cartesian coordinates. The magnetic field is modeled analytically based on a spatial arrangement of magnetic dipoles. An optimal structuring of these dipoles produces a magnetic field geometry that closely resembles the field configuration of a linear industrial magnetron in a so-called "stadium geometry". Electrons moving in this magnetic field experience the Lorentz force and are therefore confined near the racetrack region. Electron dynamics in this stadium geometry are numerically investigated and analyzed.
Keywords: Electron dynamics; Magnetron simulation; Particle-based modeling; Linear magnetron; Magnetic dipoles