  We study the effects of redistributing superthermal electrons on
Bremsstrahlung radiation from hot relativistic plasma. We consider thermal and
nonthermal distribution of electrons with an energy cutoff in the phase space
and explore the impact of the energy cutoff on Bremsstrahlung losses. We
discover that the redistribution of the superthermal electrons into lower
energies reduces radiative losses, which is in contrast to nonrelativistic
plasma. Finally, we discuss the possible relevance of our results for open
magnetic field line configurations and prospects of the aneutronic fusion based
on proton-Boron11 (p-B11) fuel.
