1. So far, most fast neutron reactors have used either metal alloy fuel. 2. Fast neutron reactors are planned to contribute 1400 GW by 2100.3. By mid-century fast neutron reactors are seen as the main technology. 4. One accord will see Russia build an experimental fast neutron reactor in China. 5. Soviet fast neutron reactors have been using ( high U-235 enriched ) uranium fuel. 6. A few reactors ( fast neutron reactors ) and all nuclear weapons rely on fast neutrons. 7. The plutonium-uranium ratio in the ash may even approximate the composition needed for fast neutron reactor fuel. 8. Moltex Energy based in the UK proposes to build a fast neutron reactor called the Stable Salt Reactor. 9. 236 U and most other actinides are fissionable by fast neutrons in a nuclear bomb or a fast neutron reactor . 10. Liquid metal cooling is also used in most fast neutron reactors including fast breeder reactors such as the Integral Fast Reactor.