Plasma confinement system with outer electrode having liquifiable material and methods for use

A plasma confinement system comprising:

• an inner electrode;
• an intermediate electrode that at least partially surrounds the inner electrode;
• and
• an outer electrode that at least partially surrounds the intermediate electrode, the outer electrode comprising:
• a solid conductive shell comprising:
• a solid conductive outer shell;
• and
• a solid inner shell that is disposed within the solid conductive outer shell and in contact with the solid conductive outer shell,
• wherein the solid inner shell comprises:
• an axial wall that at least partially encircles a longitudinal axis of the plasma confinement system;
• and
• a radial wall that couples the axial wall to the solid conductive outer shell,
• wherein the radial wall and a first end of the outer electrode form a pool region,
• an electrically conductive material disposed on the solid conductive shell, wherein the electrically conductive material has a melting point within a range of 180° C. to 800° C. at 1 atmosphere of pressure;
• and
• a pumping system configured to circulate the electrically conductive material over the outer electrode when the electrically conductive material is in a liquid state.