Abstract
The design and the numerical simulation of the interaction cavity for 120 GHz, 1 MW gyrotron is presented. The optimizations of the cavity parameters are carried out by using the Particle-in-Cell, 3D-electromagnetic simulation code MAGIC. The co-rotating TE 22,6 mode is selected by using the in-house developed code GCOMS. The cold cavity and the beam–wave interaction analyses are carried out to analyze the eigenmode, eigenfrequency and the output power performance. The output power more than 1 MW is achieved at the magnetic field of 4.82 T. The sensitivity analyses of the output power and the frequency with respect to the various interaction cavity parameters are also performed.
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