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Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field

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...

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Bibliographic Details
Main Author: Roy Choudhury, Amitavo (auth)
Format: Electronic Book Chapter
Language:English
Published: KIT Scientific Publishing 2014
Series:Karlsruher Forschungsberichte aus dem Institut für Hochleistungsimpuls- und Mikrowellentechnik
Subjects:
Technology: general issues
After-Cavity Interaction
Fusion Plasmas
Electron-Cyclotron-Heating
High-Power Gyrotron
Online Access:DOAB: download the publication
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Description
Summary: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.
Physical Description:1 electronic resource (X, 124 p. p.)
ISBN:KSP/1000037030
9783731501299
Access:Open Access

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