Development of the High Performance ECRH Antenna for GAMMA-10

Yusuke SakagoshiPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Tsuyoshi ImaiPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Hiroyuki ShidaraPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Tsuyoshi KariyaPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Ryutaro MinamiPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Norihito MachidaPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Maria NakamuraPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Manabu HarigaePlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Noritaka MurofushiPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Yuusuke YamaguchiPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan

Yoshinori TatematsuPlasma Research Center, University of Tsukuba, Ibaraki, 305-8577, Japan;Research Center for Development of Far-Infrared Region, University of Fukui, Fukui, 910-8507, Japan

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Abstract

ECRH antenna system for central cell of GAMMA 10 was newly installed. This system was designed to improve the calculated Poynting flux reaching the resonance surface and the beam path. The power transmission efficiency has been improved from about 60 to 70 % and the beam passes the center of the resonance surface. Performance test of this system was carried out with low power and we got the performance that we expected. This system was installed to GAMMA 10 and the initial electron heating result with it has been obtained.

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Development of the High Performance ECRH Antenna for GAMMA-10

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Development of the High Performance ECRH Antenna for GAMMA-10

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