John L. Johnson

TL;DR: In toroidal systems with geodesic curvature, an electrostatic acoustic mode occurs with plasma motion in the magnetic surfaces, perpendicular to the field as discussed by the authors, and this mode should dominate ordinary sound waves associated with motion along the field.

TL;DR: In this article, a technique for calculating hydromagnetic equilibria in toroidal systems which differ little from a uniform field was developed, and the zeroth-order magnetic surfaces in these systems differ appreciably from concentric circular toroids.

TL;DR: In this paper, a necessary and sufficient condition for the stability with respect to localized displacements is obtained for arbitrary bounded hydromagnetic equilibria, and the use of a natural coordinate system which contains the important properties of the equilibrium configuration facilitates the understanding of the instability.

TL;DR: In this article, an ideal hydromagnetic model was used to examine the nature of the energy sources that can drive the instability of the exchange in a single-dimensional graph. But the model was not applied to the real world.

TL;DR: In this article, numerical schemes for the determination of stationary axisymmetric toroidal equilibria appropriate for modeling real experimental devices are given, where the toroidal current distribution is given by specifying the pressure and either the poloidal current or the safety factor profiles as functions of psi.