Journal article
Three-Dimensional Numerical Simulation of a 30-GHz Gyrotron Resonator With an Explicit High-Order Discontinuous-Galerkin-Based Parallel Particle-In-Cell Method
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.
Language: | English |
---|---|
Publisher: | IEEE |
Year: | 2012 |
Pages: | 1860-1870 |
ISSN: | 19399375 and 00933813 |
Types: | Journal article |
DOI: | 10.1109/TPS.2012.2195509 |
ORCIDs: | Pirrung, Georg |
Discontinuous Galerkin (DG) Electron cyclotron maser (ECM) Gyrotron resonator High-order Numerical plasma simulation Particle-in-cell (PIC)
3D high order discontinuous Galerkin particle-in-cell method Computational modeling Cyclotrons Galerkin based parallel particle-in-cell method Galerkin method Gyrotrons Mathematical model Maxwell equations Particle beams azimuthal particle bunching cyclotron masers electromagnetic transient electron beam electron cyclotron maser (ECM) electron cyclotron maser instability frequency 30 GHz gyrotron resonator gyrotrons high power millimeter wave gyrotron resonator high-order numerical plasma simulation particle beam bunching particle-field interaction particle-in-cell (PIC) plasma simulation self consistent nonlinear Vlasov-Maxwell equations three dimensional numerical simulation