A Mock-Up Test of a Ceramic-Free Antenna Feeder of the Ion Cyclotron Heating System for Next-Generation Tokamaks
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概要
- 論文の詳細を見る
We propose a ceramic-free antenna feeder employing a ridged waveguide as a local support in an ion cyclotron range of frequency (ICRF) antenna for next-generation tokamaks. A one-quarter scale mock-up model of the all metal waveguide designed for the ICRF system in the international thermonuclear experimental reactor (ITER) is fabricated, and electrical characteristics of the model, including the coaxial line-to-waveguide converters are measured. Power reflection coefficient of the model including the coax-waveguide converter at the input coaxial line is estimated to be less than 15% when below the cut-off frequency of 107 MHz and less than 3% when above the cut-off frequency. It is found that this ceramic-free antenna support employing a ridged waveguide is suitable for the ICRF antenna for next-generation tokamaks.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 1998-06-15
著者
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Kimura Haruyuki
Japan Atomic Energy Research Institute
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Arai Hiroyuki
Yokohama National Univ.
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MORIYAMA Shinichi
Japan Atomic Energy Research Institute
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Moriyama Shinichi
Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki, 311-01, Japan
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Kimura Haruyuki
Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki, 311-01, Japan
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Saigusa Tsuneyuki
Ibaraki University, 4-12-1 Nakanarusawa, Hitachi 316, Japan
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Fujii Tsuneyuki
Ibaraki University, 4-12-1 Nakanarusawa, Hitachi 316, Japan
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MORIYAMA Shinichi
Japan Atomic Energy Agency, Naka 311-0193, Japan
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MORIYAMA Shinichi
Japan Atomic Energy Agency
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