Effect of plasma current on magnetohydrodynamic modes in neutral beam heated plasmas in compact helical system

Satoru Sakakibara; Hiroshi Yamada; Kazuo Toi; Akira Ejiri; Akira Ando; Harukazu Lguchi; Keisuke Matsuoka; Shigeru Morita; Osamu Motojima; Kiyohiko Nishimura; Shoichi Okamura; Kenji Tanaka1

doi:10.1143/JJAP.34.L252

Effect of plasma current on magnetohydrodynamic modes in neutral beam heated plasmas in compact helical system

Satoru Sakakibara, Hiroshi Yamada, Kazuo Toi, Akira Ejiri, Akira Ando, Harukazu Lguchi, Keisuke Matsuoka, Shigeru Morita, Osamu Motojima, Kiyohiko Nishimura, Shoichi Okamura, Kenji Tanaka1

研究成果: Article › 査読

7 被引用数 (Scopus)

抄録

Effects of the net toroidal plasma currents on magnetohydrodynamic (MHD) modes have been investigated in neutral beam heated plasmas with the control of ohmic current. The characteristics of experimental observations are discussed in comparison with the calculated 3-D equilibria. The resonant modes are destabilized by the change of magnetic configuration due to the induced current in the co-direction. The modes with m/n = 2/l and 3/2 abruptly disappear at the specific current, which is consistent with the disappearance of the resonant surfaces. The behavior of these modes is phenomenologically consistent with that of the interchange mode.

本文言語	English
ページ（範囲）	L252-L255
ジャーナル	Japanese journal of applied physics
巻	34
号	2
DOI	https://doi.org/10.1143/JJAP.34.L252
出版ステータス	Published - 1995 2
外部発表	はい

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

文献へのアクセス

10.1143/JJAP.34.L252

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引用スタイル

Effect of plasma current on magnetohydrodynamic modes in neutral beam heated plasmas in compact helical system. / Sakakibara, Satoru; Yamada, Hiroshi; Toi, Kazuo; Ejiri, Akira; Ando, Akira; Lguchi, Harukazu; Matsuoka, Keisuke; Morita, Shigeru; Motojima, Osamu; Nishimura, Kiyohiko; Okamura, Shoichi; Tanaka1, Kenji.

In: Japanese journal of applied physics, Vol. 34, No. 2, 02.1995, p. L252-L255.

研究成果: Article › 査読

Sakakibara, Satoru ; Yamada, Hiroshi ; Toi, Kazuo ; Ejiri, Akira ; Ando, Akira ; Lguchi, Harukazu ; Matsuoka, Keisuke ; Morita, Shigeru ; Motojima, Osamu ; Nishimura, Kiyohiko ; Okamura, Shoichi ; Tanaka1, Kenji. / Effect of plasma current on magnetohydrodynamic modes in neutral beam heated plasmas in compact helical system. In: Japanese journal of applied physics. 1995 ; Vol. 34, No. 2. pp. L252-L255.

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abstract = "Effects of the net toroidal plasma currents on magnetohydrodynamic (MHD) modes have been investigated in neutral beam heated plasmas with the control of ohmic current. The characteristics of experimental observations are discussed in comparison with the calculated 3-D equilibria. The resonant modes are destabilized by the change of magnetic configuration due to the induced current in the co-direction. The modes with m/n = 2/l and 3/2 abruptly disappear at the specific current, which is consistent with the disappearance of the resonant surfaces. The behavior of these modes is phenomenologically consistent with that of the interchange mode.",

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T1 - Effect of plasma current on magnetohydrodynamic modes in neutral beam heated plasmas in compact helical system

AU - Sakakibara, Satoru

AU - Yamada, Hiroshi

AU - Toi, Kazuo

AU - Ejiri, Akira

AU - Ando, Akira

AU - Lguchi, Harukazu

AU - Matsuoka, Keisuke

AU - Morita, Shigeru

AU - Motojima, Osamu

AU - Nishimura, Kiyohiko

AU - Okamura, Shoichi

AU - Tanaka1, Kenji

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N2 - Effects of the net toroidal plasma currents on magnetohydrodynamic (MHD) modes have been investigated in neutral beam heated plasmas with the control of ohmic current. The characteristics of experimental observations are discussed in comparison with the calculated 3-D equilibria. The resonant modes are destabilized by the change of magnetic configuration due to the induced current in the co-direction. The modes with m/n = 2/l and 3/2 abruptly disappear at the specific current, which is consistent with the disappearance of the resonant surfaces. The behavior of these modes is phenomenologically consistent with that of the interchange mode.

AB - Effects of the net toroidal plasma currents on magnetohydrodynamic (MHD) modes have been investigated in neutral beam heated plasmas with the control of ohmic current. The characteristics of experimental observations are discussed in comparison with the calculated 3-D equilibria. The resonant modes are destabilized by the change of magnetic configuration due to the induced current in the co-direction. The modes with m/n = 2/l and 3/2 abruptly disappear at the specific current, which is consistent with the disappearance of the resonant surfaces. The behavior of these modes is phenomenologically consistent with that of the interchange mode.

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KW - MHD instability

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KW - Ohmic heating current

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