Tokamak with liquid metal toroidal field coil

Tokamak apparatus comprising

• a pressure vessel for defining a reservoir and confining liquid therein, said reservoir being circularly symmetrical about a reservoir axis and symmetrical about the midplane of the reservoir normal to said reservoir axis,
• a toroidal liner symmetrically disposed within said pressure vessel for defining a toroidal space within said liner, said toroidal space having its major axis substantially coincident with said reservoir axis and its midplane substantially coincident with said reservoir midplane,
• liquid metal filling said reservoir outside of and surrounding said liner,
• means for passing electric current through said liquid metal over a conductive path linking said toroidal space to produce a toroidal magnetic field within said toroidal space about the major axis thereof for confining a toroidal plasma, said means for passing electric current including a low impedance, high power source providing current substantially evenly distributed azimuthally around the major axis of the toroidal space, said first and second radial electrically conductive members disposed within said reservoir and separated by an electrically insulating member disposed at said reservoir midplane, and
• means for developing toroidal plasma within said toroidal space about the major axis thereof.