#12110

In the picture you attach, I don’t see how you accelerate the plasma to the speeds of ~100 km/s required of the axial phase of the plasma focus and the even faster speeds for the radial implosion. In the configuration you show, the plasma collides in the axial direction which is parallel to the magnetic field. The plasma density is so low that the particles will fly past each other and never meet the conditions of fusion.

The electrodes are a problem in a production scale machine but heating is only one problem. There are other plasma focus like configurations that have different problems but the electrodes are possibly more agreeable to thermal management. There are concepts of imploding plasma using other plasma current being pursued by a company called HyperV. Take a look. This concept looks something like the HyperV idea.