Experimental Observation of Magnetic Fluctuations in NBI Heated Plasmas in CHS

Satoru Sakakibara; Hiroshi Yamada; Akira Ejiri; Katsumi Ida; Keisuke Matsuoka; Tomohiro Morisaki; Shigeru Morita; Osamu Motojima; Kiyohiko Nishimura; Shoichi Okamura; Chihiro Takahashi; Kazuo Toi; Kiyomasa Watanabe

doi:10.1143/jpsj.63.4406

Satoru Sakakibara, Hiroshi Yamada, Akira Ejiri, Katsumi Ida, Keisuke Matsuoka, Tomohiro Morisaki, Shigeru Morita, Osamu Motojima, Kiyohiko Nishimura, Shoichi Okamura, Chihiro Takahashi, Kazuo Toi, Kiyomasa Watanabe

著者情報

Satoru Sakakibara
Department of Fusion Science, The Graduate University for Advanced Studies, Nagoya 464–01
Hiroshi Yamada
National Instiute for Fusion Science, Nagoya 464–01
Akira Ejiri
National Instiute for Fusion Science, Nagoya 464–01
Katsumi Ida
National Instiute for Fusion Science, Nagoya 464–01
Keisuke Matsuoka
National Instiute for Fusion Science, Nagoya 464–01
Tomohiro Morisaki
Department of Fusion Science, The Graduate University for Advanced Studies, Nagoya 464–01
Shigeru Morita
National Instiute for Fusion Science, Nagoya 464–01
Osamu Motojima
National Instiute for Fusion Science, Nagoya 464–01
Kiyohiko Nishimura
National Instiute for Fusion Science, Nagoya 464–01
Shoichi Okamura
National Instiute for Fusion Science, Nagoya 464–01
Chihiro Takahashi
National Instiute for Fusion Science, Nagoya 464–01
Kazuo Toi
National Instiute for Fusion Science, Nagoya 464–01
Kiyomasa Watanabe
National Instiute for Fusion Science, Nagoya 464–01

キーワード: CHS, magnetic fluctuation, MHD instability, magnetic well, magnetic shear, finite beta effect, vacuum magnetic axis scan

ジャーナル認証あり

1994 年 63 巻 12 号 p. 4406-4421

DOI https://doi.org/10.1143/jpsj.63.4406

詳細

抄録

The magnetic fluctuations with the frequency f≤ 100, kHz in NBI heated plasmas have been investigated in the Compact Helical System (CHS). The observed coherent fluctuations are identified as global modes with m≤ 4, n≤ 3. The dependences of these modes on the magnetic configuration and the plasma beta are well interpreted phenomenologically by the theoretical models of the resistive and the ideal interchange modes. Both these modes and the incoherent fluctuations increase with the beta value ‹ β _dia›, however, saturate when ‹ β _dia› reaches about 1

責任著者(Corresponding author)

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