Computer simulation of relativistic multiresonator cylindrical magnetrons | Zendy

Hei-Wai Chan | Zendy; Chiping Chen | Zendy; Ronald C. Davidson | Zendy

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Computer simulation of relativistic multiresonator cylindrical magnetrons

Author(s) -

Hei-Wai Chan,

Chiping Chen,

Ronald C. Davidson

Publication year - 1990

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.103459

Subject(s) - physics , microwave , magnetic field , nonlinear system , mechanics , cavity magnetron , magic (telescope) , particle in cell , computational physics , saturation (graph theory) , electron , quantum mechanics , thin film , mathematics , combinatorics , sputtering

The relativistic multiresonator magnetron is analyzed in cylindrical geometry, using the two‐dimensional particle‐in‐cell simulation code magic. Detailed comparisons are made between the simulation results and the experiments by A. Palevsky and G. Bekefi [Phys. Fluids 22, 986 (1979)] using the A6 magnetron configuration. Within a constant scale factor, the computer simulations show a similar dependence of microwave power on magnetic field, with dominant excitations in the π and 2π modes. In the preoscillation regime, the electron flow in the simulations differs substantially from the ideal Brillouin flow model. In the nonlinear regime, the saturation is dominated by the formation of spokes.

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