The purpose of the moderator in a reactor is to
A) slow neutrons down so that they will be more likely to initiate fission reactions.
B) provide cooling for the control rods.
C) reduce the number of neutrons available for the chain reaction.
D) separate the nuclear fuel from the spent products of fission.

Question

Quizplus · Accepted Answer

The purpose of the moderator in a reactor is to slow down neutrons so that they will be more likely to initiate fission reactions. This is because fast-moving neutrons are less likely to be absorbed by the fuel and cause fission. By slowing them down, they become more effective at causing fission reactions.

The Purpose of the Moderator in a Reactor Is to