Aeronaut wrote: In a perfect scenario, 100% of the ebeam would be absorbed by the plasmoid. The fraction that is absorbed heats the plasmoid, increasing the rate of fusion events, and thus the energy produced that machine cycle. The unabsorbed ebeam fraction expends it’s energy as a heat pulse on the anode, which vaporizes a certain amount that doesn’t hurt a research reactor significantly, but would be unacceptable in a working reactor at even 330 hz.

So how will the unabsorbed ebeam fraction be allowed to expend it’s energy in the working reactor at 330Hz?? Eric seemed to imply in an earlier reply that the research machine would get a Beryllium Anode if the copper vapourisation got too heavy – does that mean Beryllium would react to the ebeam differently, or is that just a convenient replacement??