It makes sense that if the pinch current has squeezed the plasma to a dense solid plasmoid then it would take much higher levels of energy to squeeze that plasmoid even harder. The question is at what point has the plasmoid been squeezed enough to produce economical fusion? I guess the neutron yield in Lee’s model should answer that question.
There is some literature about using stepped currents. Could LPPX use their present capacitors to compress the plasma and a higher voltage capacitor for the final pinch?
