Fast breeder reactor (FBR)

What is Fast breeder reactor (FBR)?

Fast breeder reactor (FBR) meaning A reactor in which the fission chain reaction is sustained primarily by fast neutrons rather than by thermal or intermediate neutrons. Fast reactors require little or no moderator to slow down the neutrons from the speeds at which they are ejected from fissioning nuclei. This type of reactor produces more fissile material than it consumes.


reference: Glossary – U.S. Energy Information Administration (EIA)

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