Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field
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https://www.ksp.kit.edu/9783731501299Author(s)
Roy Choudhury, Amitavo
Language
EnglishAbstract
Dynamic after-cavity interaction (ACI) in megawatt-class gyrotrons is investigated that could lead to lower output mode purity and increased level of internal stray radiation. The self-consistent KIT-IHM multi-mode-code SELFT has been modified to extend the simulation domain into the radius up-taper section of the gyrotron cavity where the probability of ACI exists. Studies on four different gyrotron configurations confirm that undesired interactions in the up-taper region can result in additional parasitic oscillations with relative power in the 1%-range.
Keywords
After-Cavity Interaction; Fusion Plasmas; Electron-Cyclotron-Heating; High-Power GyrotronISBN
9783731501299Publisher
KIT Scientific PublishingPublisher website
http://www.ksp.kit.edu/Publication date and place
2014Series
Karlsruher Forschungsberichte aus dem Institut für Hochleistungsimpuls- und Mikrowellentechnik,Classification
Technology: general issues