I believe that FF Sankey diagram has been updated:
Edit: See the attached pdf for the more recent full size version.
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Tim1 wrote: What are the prospects of getting more than 66 kJ of gross fusion energy per shot? That would make conversion efficiency less of an issue.
Yes, a bit of an increase would be good… but if you up the gain too much then you run into the same problem as if you’d increased the pulse repetition rate: too much heat for the anode to handle.