Jarr wrote: I found this this old investigation of beryllium tungsten being a superconductor. http://www.jetpletters.ac.ru/ps/1253/article_18959.pdf . What if the electrode was made of a beryllium tungsten alloy cooled with liquid helium to the 4 degrees kelvin to make it a superconductor?
It is an interesting idea but I think the fusion fuel would freeze to the electrodes.