A Z-pinch is process through which current is passed though a column of plasma and the resultant JxB force acts to "pinch" the plasma to smaller and smaller radii. More specifically, a gas puff Z-pinch is a Z-pinch that ...

Electric propulsion is used to keep communication satellites in the proper position relative to Earth and for propulsion on deep space probes. One part of the propulsion system, the cathode, is required for the neutralization ...