Nuclear Reactor

An apparatus in which nuclear fission may be sustained in a self supporting chain reaction.

The fission of a nuclear fuel in the reactor vessel releases energy in the form of heat which is absorbed by the working fluid (typically water). The water in the form of steam drives turbines connected to generators which produce electric power.


The region in a reactor that contains its fissionable material.

See also: Absorber, Control Rod, Fission, Reactor.

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Subjects: Physics