Quadrupole Stabilization of the n=2 Rotational Instability of a Field-Reversed Theta-Pinch Plasma

S. Ohi, T. Minato, Y. Kawakami, M. Tanjyo, S. Okada, Y. Ito, M. Kako, S. Gotô, T. Ishimura, and H. Itô
Phys. Rev. Lett. 51, 1042 – Published 19 September 1983
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Abstract

The n=2 rotational instability is the most dangerous gross instability in a field-reversed theta pinch. It is demonstrated for the first time that the instability is completely suppressed by superposing a quadrupole field which is much smaller than the axial confinement field at the separatrix. The experimental threshold intensity of the field for stabilization is about 2.5 times less than that predicted by theoretical stability analysis.

  • Received 28 February 1983

DOI:https://doi.org/10.1103/PhysRevLett.51.1042

©1983 American Physical Society

Authors & Affiliations

S. Ohi, T. Minato, Y. Kawakami, M. Tanjyo, S. Okada, Y. Ito, M. Kako, S. Gotô, T. Ishimura, and H. Itô

  • Plasma Physics Laboratory, Faculty of Engineering, Osaka University, Suita, Osaka 565, Japan

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Issue

Vol. 51, Iss. 12 — 19 September 1983

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1988: Giant magnetoresistance is discovered
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