Aneutronic fusion
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https://en.wikipedia.org/wiki/Aneutronic_fusion
Lithium-6–deuterium fusion reaction: an aneutronic fusion reaction, with energy released carried by alpha particles, not neutrons.
Aneutronic fusion is any form of fusion power in which very little of the energy released is carried by neutrons. While the lowest-threshold nuclear fusion reactions release up to 80% of their energy in the form of neutrons, aneutronic reactions release energy in the form of charged particles, typically protons or alpha particles. Successful aneutronic fusion would greatly reduce problems associated with neutron radiation such as damaging ionizing radiation, neutron activation, and requirements for biological shielding, remote handling and safety.
Since it is simpler to convert the energy of charged particles into electrical power than it is to convert energy from uncharged particles, an aneutronic reaction would be attractive for power systems. Some proponents see a potential for dramatic cost reductions by converting energy directly to electricity, as well as in eliminating the radiation from neutrons, which are difficult to shield against.[1][2] However, the conditions required to harness aneutronic fusion are much more extreme than those required for deuterium-tritium fusion being investigated in ITER.
PATENT:
https://patents.google.com/patent/WO2009108331A2/en
A hybrid fusion fast fission reactor
Abstract
A hybrid nuclear fusion fast fission reactor is disclosed. The hybrid reactor may include an electrolyte solution comprised of PdCI2 a conductive salt and D2O, an anode of a noble metal, a cathode consisting of a conductive high Z (atomic number greater than 46) material wound around a deuteride-forming actinide nuclear fuel element, a power source providing constant current to the + anode and the - cathode, an applied power profile for fabricating the PdD nanoalloy, and a co-deposition of a PdD nanoalloy on to the high Z cathode winding as well as the nuclear fuel element. A preferred embodiment stablizes the actinide deuteride nuclear fuel element from hydrogen isotope de-loading. A preferred embodiment initiates deuterium-deuterium fusion in the deuterized fuel element and fissioning deuterized fuel element actinides. A preferred embodiment includes surrounding spent nuclear fuel elements with deuteride nuclear fuel elements that will fast fission the spent fuel elements. Another preferred embodiment includes surrounding the deuteride nuclear fuel elements with spent fuel elements as fast neutron reflectors that will also fission.