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Pool type sodium-cooled fast reactor (SFR) A sodium-cooled fast reactor is a fast neutron reactor cooled by liquid sodium.. The initials SFR in particular refer to two Generation IV reactor proposals, one based on existing liquid metal cooled reactor (LMFR) technology using mixed oxide fuel (MOX), and one based on the metal-fueled integral fast reactor.
An accelerator-driven subcritical reactor (ADSR) is a nuclear reactor design formed by coupling a substantially subcritical nuclear reactor core with a high-energy proton or electron accelerator. It could use thorium as a fuel, which is more abundant than uranium .
Reactors pose a nuclear proliferation risk as they can be configured to produce plutonium and tritium for nuclear weapons. Spent fuel can be reprocessed, reducing nuclear waste and recovering some reactor-usable MOX fuel. Reprocessing is used in Europe and Asia, but due to proliferation concern, the United States does not engage in or encourage ...
A traveling-wave reactor (TWR) is a proposed type of nuclear fission reactor that can convert fertile material into usable fuel through nuclear transmutation, ...
Example of a molten-salt reactor scheme. A molten-salt reactor (MSR) is a class of nuclear fission reactor in which the primary nuclear reactor coolant and/or the fuel is a mixture of molten salt with a fissile material. Two research MSRs operated in the United States in the mid-20th century.
A sample of thorium. Thorium-based nuclear power generation is fueled primarily by the nuclear fission of the isotope uranium-233 produced from the fertile element thorium.A thorium fuel cycle can offer several potential advantages over a uranium fuel cycle [Note 1] —including the much greater abundance of thorium found on Earth, superior physical and nuclear fuel properties, and reduced ...
The VM-A reactor was the nuclear fission reactor used in pairs to power the Soviet Navy's Project 658 and 701 , Project 659 and 675 , and Project 627 Кит first-generation submarines. It was a pressurized water reactor (PWR), using 20% enriched uranium-235 fuel to produce 70 MW (94,000 hp) of power.
Illustration of a light water small modular nuclear reactor (SMR) The small modular reactor (SMR) is a class of small nuclear fission reactor, designed to be built in a factory, shipped to operational sites for installation and then used to power buildings or other commercial operations.