Model evaluations of multipactor suppression in rectangular waveguides through grooved surfaces and static magnetic field

摘要: Mitigation of multipactor in waveguides is importance, and strategies have included the addition external fields, materials engineering, or surface modifications. Here, geometry modifications rectangular waveguide surfaces application an axial magnetic field are investigated for suppressing growth. A Monte Carlo approach has been used to simulate electron dynamics. The empirical secondary electrons yield modeled based on a modified Vaughan approach. electric fields driving transport were derived from separate electromagnetic calculations adequately include perturbations due presence patterns structure. Combinations grooves DC shown effectively mitigate growth at strengths up ∼105 V/m. Finding optimal combinations arbitrary operating frequency requires further work.