Question

Which substance is used as moderator in nuclear reactor?

Answer 1

Moderator are usually light elements like H, Be, Graphite, Oil, Polythene, Water, Heavy water etc. Neutrons collides with them and looses energy. Moderator slows down neutron and it also absorbs neutrons. 

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Answer 2

hey!

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Light substances are usually used in the nuclear reactor .

For example :-

Graphite

Boron

Light water

Anything that slow downs the neutrons present there can be used as moderator .

We Can also use heavy water as moderator in nuclear reactor .

So to slow down the process of neutrons present in fission we use moderator .


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