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nuclear reactor click to hear : nuclear reactor

Tightly sealed area where fission of the fuel is carried out in a controlled manner to release heat.
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See nuclear reactor in : french | spanish
reactor building pressure tube reactor vessel spent fuel storage bay containment building fuel bundle fuel pellet

reactor building click to hear : reactor building

Concrete structure surrounding the reactor vessel; it is a protective barrier against radioactivity.

pressure tube click to hear : pressure tube

Tube that holds the fuel bundles and circulates the coolant at a preset pressure.

reactor vessel click to hear : reactor vessel

The core of the nuclear reactor consists of tubular spaces where fission is produced and the coolant and moderator circulate.

spent fuel storage bay click to hear : spent fuel storage bay

Water-filled basin where the spent fuel is stored for several years before it can be disposed of safely.

containment building click to hear : containment building

Concrete structure surrounding the reactor vessel; it is a protective barrier against radioactivity.

fuel bundle click to hear : fuel bundle

Fuel pencils that are grouped in parallel for introduction into the reactor.

fuel pellet click to hear : fuel pellet

Small quantity of fuel that consists of powder pressed into a sheathing tube and then inserted into the metal cladding of the pencil.