Question
Tue September 01, 2009 By: Sukhmaneet Kaur

please give the answer

Expert Reply
Tue September 01, 2009

By slowing down the fast moving, high energy neutron to slower and low energy neutrons called thermal neutrons, the nuclear fission reaction can be made sustainable.

Hence moderators, such as heavy water, graphite are used as to slow down neutrons.

Regards,

Team,

TopperLearning.

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