Magnetron Cavity Design

A common problem in magnetron design is the fact that many of the normal modes have similar frequencies and operating thresholds as determined by the Hartree cutoff. A second problem with relativistic magnetrons like the A6 is that they typically have low efficiency, on the order of 30%. Using simulation software like VSimMD, can help engineers discover optimal design configurations to prohibit undesired modes and increase efficiency.
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VSim, with its intuitive visual interface, can be used to iterate on cavity shape and configuration, then quickly compute the normal modes and their frequencies to produce a magnetron with increased separation between modes.

Once a promising cavity configuration is found, the operation of the magnetron can be simulated by introducing electron emission at the cathode surface and making a few other adjustments in the graphical user interface.

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