asymmertic_implosion wrote: It’s not 100% clear why, but a plasma focus seems to work better with individual cathode rods. People speculate that some of the gas between the anode and the cathode needs to be pushed out while others cite debris as the reason.
If the problem is gas circulation, then one presumably could just weld the cathode rods on the inside of a series of rings, which would make the assembly one piece while still allowing circulation.
I get the sense that there is a lot of interesting testing to be done on cathode parameters.
