Question

defination of moderator in nuclear reactor ​

Answer 1

Answer:

Explanation:

In nuclear engineering, a neutron moderator is a medium that reduces the speed of fast neutrons, thereby turning them into thermal neutrons capable of sustaining a nuclear chain reaction involving uranium-235 or a similar fissile nuclide.

Commonly used moderators include regular (light) water (roughly 75% of the world's reactors), solid graphite (20% of reactors) and heavy water (5% of reactors).[1] Beryllium has also been used in some experimental types, and hydrocarbons have been suggested as another possibility.

Answer 2

Explanation:

A moderator is a material that slows the speed of neutrons.

Moderators are used in nuclear reactors to slow the neutrons enough to increase the likelihood of interaction with another nucleus to initiate fission.

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