Electron Bernstein Wave Heating through Slow X-B Mode Conversion in CHS

Yasuo YOSHIMURA; Kazunobu NAGASAKI; Tsuyoshi AKIYAMA; Mitsutaka ISOBE; Akihiro SHIMIZU; Chihiro SUZUKI; Chihiro TAKAHASHI; Kenichi NAGAOKA; Shin NISHIMURA; Takashi MINAMI; Keisuke MATSUOKA; Shoichi OKAMURA; CHS group; Shin KUBO; Takashi SHIMOZUMA; Hiroe IGAMI; Takashi NOTAKE; Takashi MUTOH

doi:10.1585/pfr.1.053

Letters

Electron Bernstein Wave Heating through Slow X-B Mode Conversion in CHS

Yasuo YOSHIMURA, Kazunobu NAGASAKI, Tsuyoshi AKIYAMA, Mitsutaka ISOBE, Akihiro SHIMIZU, Chihiro SUZUKI, Chihiro TAKAHASHI, Kenichi NAGAOKA, Shin NISHIMURA, Takashi MINAMI, Keisuke MATSUOKA, Shoichi OKAMURA, CHS group, Shin KUBO, Takashi SHIMOZUMA, Hiroe IGAMI, Takashi NOTAKE, Takashi MUTOH

Author information

Yasuo YOSHIMURA
National Institute for Fusion Science
Kazunobu NAGASAKI
Institute of Advanced Energy, Kyoto University
Tsuyoshi AKIYAMA
National Institute for Fusion Science
Mitsutaka ISOBE
National Institute for Fusion Science
Akihiro SHIMIZU
National Institute for Fusion Science
Chihiro SUZUKI
National Institute for Fusion Science
Chihiro TAKAHASHI
National Institute for Fusion Science
Kenichi NAGAOKA
National Institute for Fusion Science
Shin NISHIMURA
National Institute for Fusion Science
Takashi MINAMI
National Institute for Fusion Science
Keisuke MATSUOKA
National Institute for Fusion Science
Shoichi OKAMURA
National Institute for Fusion Science
CHS group
National Institute for Fusion Science
Shin KUBO
National Institute for Fusion Science
Takashi SHIMOZUMA
National Institute for Fusion Science
Hiroe IGAMI
National Institute for Fusion Science
Takashi NOTAKE
National Institute for Fusion Science
Takashi MUTOH
National Institute for Fusion Science

Keywords: electron cyclotron heating, electron Bernstein waves, mode conversion, high-field side injection

JOURNAL FREE ACCESS

2006 Volume 1 Pages 053

DOI https://doi.org/10.1585/pfr.1.053

Details

Abstract

Evident increases in plasma stored energy have been observed in the Compact Helical System (CHS) by injecting nearly X-mode-polarized 54.5 GHz electron cyclotron (EC) waves from the high-field side. An additional plane mirror that enabled the high-field side injection of the EC waves was installed. The centrally peaked and increased electron temperature distributions with the X-mode wave directions which are not aimed at the fundamental resonance layer at the plasma core region strongly suggest that the heating effects occurred due to the excitation of the electron Bernstein waves via mode conversion from the X-mode waves injected from the high-field side.

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