ECW/EBW heating and current drive experiment results and prospects for CW operation in QUEST

被引：0

作者：

Idei, Hiroshi ^{[1
]}

Zushi, Hideki ^{[1
]}

Hanada, Kazuaki ^{[1
]}

Kalinnikova, Evgeniya ^{[2
]}

Nakamura, Kazuo ^{[1
]}

Fujisawa, Akihide ^{[1
]}

Nagashima, Yoshihiko ^{[1
]}

Hasegawa, Makoto ^{[1
]}

Matsuoka, Keisuke ^{[1
]}

Kariya, Tsuyoshi ^{[3
]}

Imai, Tsuyoshi ^{[3
]}

Minami, Ryutaro ^{[3
]}

Yoshida, Naoaki ^{[1
]}

Sakamoto, Mizuki ^{[3
]}

Watanabe, Hideo ^{[1
]}

Tokunaga, Kazutoshi ^{[1
]}

Ejiri, Akira ^{[4
]}

Sakaguchi, Masatsugu ^{[2
]}

Ishiguro, Masaki ^{[2
]}

Tashima, Saya ^{[2
]}

Fukuyama, Atsushi ^{[5
]}

Igami, Hiroe ^{[6
]}

Kubo, Shin ^{[6
]}

Isobe, Mitsutaka ^{[6
]}

Nagaoka, Kenichi ^{[6
]}

Nakanishi, Hideya ^{[6
]}

Nishino, Nobuhiro ^{[7
]}

Kawasaki, Shoji ^{[1
]}

Nakashima, Hisatoshi ^{[1
]}

Higashijima, Aki ^{[1
]}

Takase, Yuichi ^{[4
]}

Maekawa, Takashi ^{[8
]}

Mitarai, Osamu ^{[9
]}

Kikuchi, Mitsuru ^{[10
]}

Toi, Kazuo ^{[6
]}

机构：

[1] Research Institute for Fusion Science, Kasuga,816-8580, Japan

[2] Interdisciplinary Graduate School of Engineering Science, Kyushu University, Kasuga,816-8580, Japan

[3] Plasma Research Center, Tsukuba University, Tsukuba,305-8577, Japan

[4] Department of Complexity Science and Engineering, University of Tokyo, Kashiwa,277-8561, Japan

[5] Department of Nuclear Engineering, Kyoto University, Kyoto,606-8501, Japan

[6] National Institute for Fusion Science, Toki,509-5292, Japan

[7] Mechanical System Engineering, Hiroshima University, Hiroshima,739-8527, Japan

[8] Graduate School of Energy Science, Kyoto University, Kyoto,606-8501, Japan

[9] Institute of Industrial Science and Technology Research, Tokai University, Kumamoto,862-8652, Japan

[10] Japan Atomic Energy Agency, Naka,311-0193, Japan

来源：

Plasma and Fusion Research | 2012年 / 7卷

关键词：

Current drive system - Electron Bernstein waves - Long-pulse discharge - Phased array antenna systems - Phased array antennas - QUEST - Radio frequency power - Spherical Tokamak;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A CW phased-array antenna system for electron cyclotron/Bernstein wave heating and current drive (ECWH/CD, EBWH/CD) experiments was developed in the QUEST. The antenna was designed to excite an elliptically polarized pure O-mode wave in oblique injection for the O-X-B mode conversion scenario, and its good performance was confirmed at a high power level. Long pulse discharges with a plasma current of 10 kA and 15 kA were non-inductively attained for 37 s and 20 s, respectively, with only radio frequency (RF) power. Divertor configurationswere also obtained in the RF-sustained plasmas. A new operational window for sustained plasma current was observed in the high-density plasma with a higher RF incident power. Two new heating and current drive systems with an 8.56GHz klystron and a 28GHz gyrotron are being prepared to conduct CW EBWH/CD experiments in the high-density plasma. © 2012 The Japan Society of Plasma Science and Nuclear Fusion Research.

引用

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