Marathon Fusion will add mercury-198 to the blanket in the fusion reactor.
“”When a fast neutron hits a mercury-198 atom it absorbs it and releases two more neutrons in its place in an N-2N Reaction, producing mercury-197. Mercury-197 is an unstable isotope that undergoes Beta minus decay. Over roughly 64 hours one of its neutrons transforms into a proton, releasing an electron and antineutrino, and turning the atom into gold-197, the stable form of gold found in nature.
… simulations show that a 1 Gigawatt fusion plant could crank out 5000 kilograms of gold per year, potentially doubling the plant’s revenue.””
