Critique on Helion: The Challenge for Adiabatically Heated FRC Based D- $$^3$$ He Fusion | Journal of Fusion Energy

Quote:

> As seen in Table 1, at 10 keV, the ratio of fusion power to bremsstrahlung power is 3.6 larger in ref [4] than in our calculation.

Basically they claim Helion has a too optimistic assumption of the efficiency.