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Sodium-cooled fast reactor
Type of nuclear reactor cooled by molten sodium / From Wikipedia, the free encyclopedia
A sodium-cooled fast reactor is a fast neutron reactor cooled by liquid sodium.
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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.
Several sodium-cooled fast reactors have been built and some are in current operation, particularly in Russia.[1] Others are in planning or under construction. For example, in 2022, in the US, TerraPower (using its Traveling Wave technology[2]) is planning to build its own reactors along with molten salt energy storage[2] in partnership with GEHitachi's PRISM integral fast reactor design, under the Natrium[3] appellation in Kemmerer, Wyoming.[4][5]
Aside from the Russian experience, Japan, India, China, France and the USA are investing in the technology.