2010年1月
Numerical Analysis of Slow-Wave Instabilities in an Oversized Sinusoidally Corrugated Waveguide Driven by a Finitely Thick Annular Electron Beam
Plasma and Fusion Research
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- 巻
- 5
- 号
- 開始ページ
- S1047_1
- 終了ページ
- S1047_6
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1585/pfr.5.S1047
- 出版者・発行元
- The Japan Society of Plasma Science and Nuclear Fusion Research
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.
- リンク情報
- ID情報
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- DOI : 10.1585/pfr.5.S1047
- ISSN : 1880-6821
- CiNii Articles ID : 130000442468