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  • American Institute of Physics (AIP)  (3)
  • 1985-1989  (3)
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Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    A tearing mode energy principle for an axisymmetric force-free plasma (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 62-67 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A self-adjoint, gauge invariant stability functional δWTG for determination of a sufficient condition of tearing mode stability is obtained for a plasma with a uniform pressure. The plasma is stable if there is no free energy available to support energy flux into the singular layer. The Δ' concept, valid in simple geometries, is generalized to reflect variation of equilibrium quantities on the flux surface. The relationship of δWTG to the ideal stability functional and other possible forms of tearing mode stability functionals is clarified through gauge transformations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859105
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Resistive ballooning in the toroidal reversed-field pinch (1985)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 28 (1985), S. 1164-1168 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Various toroidal reversed-field pinch (RFP) equilibria stable to ideal Mercier and ballooning modes are subjected to resistive ballooning analysis. The stability properties of these configurations are thus investigated as a function of quantities that are experimentally measurable. Resistive ballooning is seen as a likely candidate for the interpretation of a certain class of density fluctuation phenomena observed in these devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.865041
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  • 3
    Electronic Resource
    Electronic Resource
    Low-n shear Alfvén spectra in axisymmetric toroidal plasmas (1986)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 29 (1986), S. 3695-3701 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In toroidal plasmas, the toroidal magnetic field is nonuniform over a magnetic surface and causes coupling of different poloidal harmonics. It is shown both analytically and numerically that the toroidicity not only breaks up the shear Alfvén continuous spectrum, but also creates new, discrete, toroidicity-induced shear Alfvén eigenmodes with frequencies inside the continuum gaps. Potential applications of the low-n toroidicity-induced shear Alfvén eigenmodes on plasma heating and instabilities are addressed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.865801
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    Paper (German National Licenses)
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