Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E

J. H. Harris; O. Motojima; H. Kaneko; S. Besshou; H. Zushi; M. Wakatani; F. Sano; S. Sudo; A. Sasaki; K. Kondo; M. Sato; T. Mutoh; T. Mizuuchi; M. Iima; T. Obiki; A. Iiyoshi; K. Uo

doi:10.1103/PhysRevLett.53.2242

Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E

J. H. Harris, O. Motojima, H. Kaneko, S. Besshou, H. Zushi, M. Wakatani, F. Sano, S. Sudo, A. Sasaki, K. Kondo, M. Sato, T. Mutoh, T. Mizuuchi, M. Iima, T. Obiki, A. Iiyoshi, K. Uo

Power Exhaust and Particle Control

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Abstract

Electron-cyclotron and neutral-beam heating have been used to produce currentless plasma with (1-2)% in the Heliotron-E device. For moderately peaked profiles, magnetohydrodynamic activity that peaks at the t=1 surface has been observed. The characteristics of the fluctuations are consistent with theoretical expectations for an m=1 pressure-driven instability. The magnetohydrodynamic activity is associated with particle and energy losses but has not yet been directly linked to global confinement.

Original language	English
Pages (from-to)	2242-2245
Number of pages	4
Journal	Physical Review Letters
Volume	53
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.53.2242
State	Published - 1984

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Harris, J. H., Motojima, O., Kaneko, H., Besshou, S., Zushi, H., Wakatani, M., Sano, F., Sudo, S., Sasaki, A., Kondo, K., Sato, M., Mutoh, T., Mizuuchi, T., Iima, M., Obiki, T., Iiyoshi, A., & Uo, K. (1984). Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E. Physical Review Letters, 53(23), 2242-2245. https://doi.org/10.1103/PhysRevLett.53.2242

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title = "Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E",

abstract = "Electron-cyclotron and neutral-beam heating have been used to produce currentless plasma with (1-2)% in the Heliotron-E device. For moderately peaked profiles, magnetohydrodynamic activity that peaks at the t=1 surface has been observed. The characteristics of the fluctuations are consistent with theoretical expectations for an m=1 pressure-driven instability. The magnetohydrodynamic activity is associated with particle and energy losses but has not yet been directly linked to global confinement.",

author = "Harris, {J. H.} and O. Motojima and H. Kaneko and S. Besshou and H. Zushi and M. Wakatani and F. Sano and S. Sudo and A. Sasaki and K. Kondo and M. Sato and T. Mutoh and T. Mizuuchi and M. Iima and T. Obiki and A. Iiyoshi and K. Uo",

year = "1984",

doi = "10.1103/PhysRevLett.53.2242",

language = "English",

volume = "53",

pages = "2242--2245",

journal = "Physical Review Letters",

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T1 - Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E

AU - Harris, J. H.

AU - Motojima, O.

AU - Kaneko, H.

AU - Besshou, S.

AU - Zushi, H.

AU - Wakatani, M.

AU - Sano, F.

AU - Sudo, S.

AU - Sasaki, A.

AU - Kondo, K.

AU - Sato, M.

AU - Mutoh, T.

AU - Mizuuchi, T.

AU - Iima, M.

AU - Obiki, T.

AU - Iiyoshi, A.

AU - Uo, K.

PY - 1984

Y1 - 1984

N2 - Electron-cyclotron and neutral-beam heating have been used to produce currentless plasma with (1-2)% in the Heliotron-E device. For moderately peaked profiles, magnetohydrodynamic activity that peaks at the t=1 surface has been observed. The characteristics of the fluctuations are consistent with theoretical expectations for an m=1 pressure-driven instability. The magnetohydrodynamic activity is associated with particle and energy losses but has not yet been directly linked to global confinement.

AB - Electron-cyclotron and neutral-beam heating have been used to produce currentless plasma with (1-2)% in the Heliotron-E device. For moderately peaked profiles, magnetohydrodynamic activity that peaks at the t=1 surface has been observed. The characteristics of the fluctuations are consistent with theoretical expectations for an m=1 pressure-driven instability. The magnetohydrodynamic activity is associated with particle and energy losses but has not yet been directly linked to global confinement.

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U2 - 10.1103/PhysRevLett.53.2242

DO - 10.1103/PhysRevLett.53.2242

M3 - Article

AN - SCOPUS:4243729513

SN - 0031-9007

VL - 53

SP - 2242

EP - 2245

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

ER -

Magnetohydrodynamic activity in high-, currentless plasmas in heliotron-E

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