Hybrid fusion-fission reactors

Hybrid fusion-fission reactors to run on nuclear ‘sludge’ • The Register.

A good use for high-energy neutrons is burning up transuranic “waste” from conventional once-through fission reactors. As any Fast Neutron reactor wonk knows, once-through “waste” still has 95% of the uranium’s energy potential in it as not-so-easily fissioned U238 and things like plutonium etc. A stream of fast neutrons can allow the stuff to be fissioned without excessive reprocessing and absolutely no need to separate out the plutonium.