• Author: Stock, Andreas, Germany

    Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany

  • Author: Neudorfer, Jonathan, Germany

    Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany

  • Author: Riedlinger, Marc, Germany

    Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany

  • Author: Pirrung, Georg

    Aeroelastic Design, Department of Wind Energy, Technical University of Denmark, Denmark

  • Author: Gassner, Gregor, Germany

    Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany

  • Author: Schneider, Rudolf, Germany

    Institut für Hochleistungsimpuls und Mikrowellentechnik, Karlsruhe Institute of Technology, Germany

  • Author: Roller, Sabine, Germany

    German Research School for Simulation Sciences GmbH (GRS), Germany

  • Author: Munz, Claus-Dieter, Germany

    Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany

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Fast design codes for the simulation of the particle–field interaction in the interior of gyrotron resonators are available. They procure their rapidity by making strong physical simplifications and approximations, which are not known to be valid for many variations of the geometry and the operating setup. For the first time, we apply a fully electromagnetic (EM) transient 3-D high-order discontinuous Galerkin particle-in-cell method solving the complete self-consistent nonlinear Vlasov–Maxwell equations to simulate a 30-GHz high-power millimeter-wave gyrotron resonator without physical reductions. This is a computational expensive endeavor, which requires today's high-performance computing capacity. However, this enables a detailed analysis of the EM field, the excited TE2,3 mode, the frequencies, and the azimuthal particle bunching in the beam. Therefrom, we present new insights into the complex particle–field interaction of the electron cyclotron maser instability transferring kinetic energy from the electron beam to the EM field.

Original languageEnglish
JournalI E E E Transactions on Plasma Science
Publication date2012
Volume40
Journal number7
Pages1860-1870
ISSN0093-3813
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 2

Keywords

  • Discontinuous Galerkin (DG), Electron cyclotron maser (ECM), Gyrotron resonator, High-order, Numerical plasma simulation, Particle-in-cell (PIC)
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