Research and development of 2-frequency (110/138 GHz) FADIS for JT-60SA ECHCD system

H. Idei, S. Moriyama, T. Kobayashi, A. Isayama, M. Sakaguchi, W. Kasparek

    Research output: Contribution to journalConference articlepeer-review


    A FAst DIrectional Switch (FADIS) of 2-frequency (2-f{hook}) gyrotron system for the JT-60SA project is being developed under collaboration between Japan Atomic Energy Agency (JAEA) and Kyushu University. At first, the frequency drift and dip in the gyrotron operation were measured to consider which kind of FADIS is preferred for application in the Electron Cyclotron Heating and Current Drive (ECHCD) system for the JT- 60SA. Various types of the FADIS have been considered. A square corrugated waveguide diplexer system with double resonant rings was considered as one of the most attractive FADIS systems for stable high-power and long-pulse operations in the 2-f{hook} JT-60SA ECHCD system.

    Original languageEnglish
    Article number04009
    JournalEPJ Web of Conferences
    Publication statusPublished - Mar 12 2015
    Event18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014 - Nara, Japan
    Duration: Apr 22 2014Apr 25 2014

    All Science Journal Classification (ASJC) codes

    • General Physics and Astronomy


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