| 主权项 |
1. An apparatus comprising:
a toroidal vacuum vessel with a major radius R and a minor radius α selected to satisfy conditions for a minimum-energy state, the toroidal vacuum vessel filled with a gas having an initial particle density n, where n=(mη2)/(a2μoe2), m is a mass of an ion charge carrier, μ0 is the permeability of free space, e is the electron charge, and η is a constant in the range of 1 to 2; an ionizing device ionizing the gas into a plasma and heating the plasma; a transformer inductively driving a toroidal particle current comprising an ion current and an electron current about a toroidal axis that heats the plasma and generates a poloidal magnetic field; field coils wound poloidally about the toroidal vacuum vessel generating a toroidal magnetic field wherein a beta value for the toroidal magnetic field at a wall of the toroidal vacuum vessel is adjusted to satisfy a boundary condition for a minimum-energy state such that ion current conductivity has a free space value and the electron current conductivity is reduced by the poloidal magnetic field and the toroidal magnetic field, the ion current increasing in response to the free space value of conductivity and generating an increased poloidal magnetic field that motivates the ions radially inward toward the toroidal axis, separating the ions radially inward from the electrons, the ions contained within an inner boundary and the electrons contained within an outer boundary, and producing a radial electric field within the plasma between the radially inward ions and the radially outward electrons, the plasma contained by the radial electric field, the poloidal magnetic field, and the toroidal magnetic field within the toroidal vacuum vessel in the minimum-energy state within the outer boundary of between 1 and 2 ion depths. |
