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Nuclear reactor is an arrangement, in which controlled
nuclear fission reaction takes place.
- First nuclear reactor was established in Chicago
University under the supervision of Prof Enrico
Fermi. - Heavy water, graphite and beryllium oxide are used
to slow down the fast moving neutrons. They are
called moderate.
Uses of Nuclear Reactor
(i)To produce electrical energy from the energy
released during fission.
(ii)To produce different isotopes, this can be used
medical, physical and agriculture science.
There are several components of nuclear reactor
which are as follows - Fissionable Fuel U235 or U239 is used.
- Moderator decreases the energy of neutrons, so that
they can be further used for fission reaction. - Heavy water and graphite are used as moderator.
- Control Rod rods of cadmium or boron are used to
absorb the excess neutrons produced in fission of
uranium nucleus, so that the chain reaction