Magnetic Confinement Configuration for Plasmas Carrying High Currents

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Abstract
A magnetic plasma confinement configuration aimed at sustaining high-current densities is proposed. It involves a small triangular and elliptic deformation imposed over a circular cross section of the plasma column by a surrounding conducting shell at close distance. The stability against kink modes is analyzed and shown to be the same as that of an equivalent plasma column with equal area, but circular cross section. An assessment of the over-all stability of this configuration points to a significant improvement, in terms of the Ohmic heating resulting from the induced current, over the known configurations with circular cross section.