What is Neutron moderator?
A '''neutron moderator''' is a material that slows down [[neutrons]]. This is done in nuclear [[power station]]s so the neutrons keep a steady nuclear chain reaction to provide heat. Neutron moderators are an essential part of most [[nuclear reactor]]s. Common neutron moderators are ordinary [[water]] (called light water in the nuclear industry), [[heavy water]], and [[graphite]]. {{tech-stub}} [[Category:Nuclear physics]]