Question

Which of the following part in a nuclear reactor minimizes the neutron leakage?

(a) Shield

(b) Control rods

(c) Reflector

(d) Moderator

The question was posed to me during an internship interview.

My doubt stems from Nuclear Reactor Components in chapter Nuclear Power Plant of Energy Engineering

Answer 1

Correct choice is (c) Reflector

For explanation I would say: Function of the reflector is to minimize the neutron leakage by reflecting them back into the reactor. The material used for reflector is same as that used for moderator. It scatters the neutrons that leak from core and returns the neutrons back into core by reflecting them.