Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Numerical Analysis of Slow-Wave Instabilities in an X-Band Sinusoidally Corrugated Waveguide with Coaxial Slow-Wave Structure
Shingo ABEKazuo OGURAKosuke OTUBOHiroki KIMURA
Author information

2010 Volume 5 Pages S2091


The dispersion characteristics and slow-wave instabilities of a sinusoidally corrugated waveguide with coaxial slow-wave structure (SWS) are analyzed. In SWS, a central cylindrical conductor is surrounded by an outer cylindrical conductor. Sinusoidal corrugation is formed on either conductor or both conductors. The corrugation parameters are those used for an X-band SWS. The relative phase between the sinusoidal corrugations on the inner and outer conductors affects the dispersion characteristics. Instabilities due to beam interactions with the slow -waves are examined by considering three-dimensional beam perturbations. The slow cyclotron instability occurs in addition to the Cherenkov instability, since transverse as well as longitudinal perturbations are included.

Content from these authors
© 2010 by The Japan Society of Plasma Science and Nuclear Fusion Research
Previous article Next article