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Stabilization of ballooning modes by nonparaxial cells

  • Magnetic Confinement Systems
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Abstract

An analysis is made of the effect of high-curvature stabilizing nonparaxial elements (cells) on the MHD plasma stability in open confinement systems and in confinement systems with closed magnetic field lines. It is shown that the population of particles trapped in such cells has a stabilizing effect not only on convective (flute) modes but also on ballooning modes, which govern the maximum possible β value. In the kinetic approach, which distinguishes between the effects of trapped and passing particles, the maximum possible β values consistent with stability can be much higher than those predicted by the MHD model.

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Authors and Affiliations

  1. Institute of Nuclear Fusion, Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia

    V. V. Arsenin, A. V. Zvonkov & A. A. Skovoroda

Authors
  1. V. V. Arsenin
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  2. A. V. Zvonkov
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  3. A. A. Skovoroda
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__________

Translated from Fizika Plazmy, Vol. 31, No. 1, 2005, pp. 6–16.

Original Russian Text Copyright © 2005 by Arsenin, Zvonkov, Skovoroda.

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Arsenin, V.V., Zvonkov, A.V. & Skovoroda, A.A. Stabilization of ballooning modes by nonparaxial cells. Plasma Phys. Rep. 31, 3–13 (2005). https://doi.org/10.1134/1.1856704

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  • DOI: https://doi.org/10.1134/1.1856704

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