Single-mode oscillation of a gyrotron with the introduction of a periodic-structure waveguide

• MITSUYAMA Kazuhiko

  Department of Electronic and Communication Engineering, Kyoto University

• NAKAJIMA Masamitsu

  Department of Electronic and Communication Engineering, Kyoto University

Bibliographic Information

Other Title

• 周期構造導波路導入によるジャイロトロン発振の単一モード化

Abstract

The electron cyclotron resonance heating is a promising method to generate nuclear fusion reaction by irradiating high power millimeter wave to plasma.To obtain high power millimeter wave gyrotrons of large size are used.In such a large-size gyrotron, many competitive modes are liable to be produced, resulting in the deterioration of heating efficiency.In our research, we propose an idea that the introduction of the waveguide with periodic structure suppresses the unwanted modes based on the similar principle to a DBR laser.With a proper formulation of the periodic structure, we have calculated the reflection coefficients of wanted and unwanted modes as a function of the length and the amplitude of the periodic perturbation.

Journal

• Technical report of IEICE. OPE

  Technical report of IEICE. OPE 98 (124), 67-73, 1998-06-18

  The Institute of Electronics, Information and Communication Engineers

Keywords

• Single mode oscillation
• gyrotron
• periodic structure
• mode competition
• coupled-wave theory

Details

• CRID: 1574231877187217664
• NII Article ID: 110003303165
• NII Book ID: AN10442691
• Text Lang: ja
• Data Source:
  • CiNii Articles