2024-03-29T15:09:03Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002536
2022-12-15T03:35:40Z
423:424:425
453:454
Numerical Analysis of Slow-Wave Instabilities in Oversized Sinusoidaly Corrugated Waveguide Driven by Finitely Thick Annular Electron Beam
Numerical Analysis of Slow-Wave Instabilities in Oversized Sinusoidaly Corrugated Waveguide Driven by Finitely Thick Annular Electron Beam
Otubo, Kosuke
37678
Ogura, Kazuo
37679
Yamakawa, Mitsuhisa
37680
Takashima, Yusuke
37681
annular beam
oversized sinusoidaly corrugated waveguide
boundary condition
Cherenkov instability
slow cyclotron instability
Three kinds of models are used for beam instability analyses: those based on a solid beam, an infinitesimally thin annular beam, and a finitely thick annular beam. In high-power experiments, the electron beam is an annulus of finite thickness. In this paper, a numerical code for a sinusoidally corrugated waveguide with a finitely thick annular beam is presented and compared with other models. Our analysis is based on a new version of the self-consistent linear theory that takes into account three-dimensional beam perturbations. Slow-wave instabilities in a K-band oversized sinusoidally corrugated waveguide are analyzed. The dependence of the Cherenkov and slow cyclotron instabilities on the annular thickness and guiding magnetic field are examined.
journal article
The Japan Society of Plasma Science and Nuclear Fusion Research
2010
application/pdf
Plasma and Fusion Research
5
S1047-1
S1047-6
Plasma and Fusion Research
AA12346675
18806821
https://niigata-u.repo.nii.ac.jp/record/2536/files/5_S1047.pdf
eng
info:doi/10.1585/pfr.5.S1047
https://www.jstage.jst.go.jp/browse/pfr
一般社団法人プラズマ・核融合学会
本文データは学協会の許諾に基づきJ-Stageのサイトから複製したものである