Which reactor is the Canada deuterium uranium reactor?

Which reactor is the Canada deuterium uranium reactor?

• A. Magnox Reactor
• B. FNR Reactor
• C. Candu Reactor
• D. AGR Reactor

Answer: (C)

The Canada Deuterium Uranium reactor is CANDU. Its defining feature is using heavy water (deuterium oxide) as both moderator and coolant, which allows the reactor to run on natural uranium fuel without enrichment. Heavy water slows neutrons effectively while absorbing very few, so the natural U-235 present can sustain fission. This design is a pressurized heavy-water reactor (PHWR) and even allows online refueling without shutting the reactor down. In contrast, Magnox reactors are gas-cooled with a graphite moderator and use natural uranium metal; FNR refers to fast-neutron reactors that use little or no moderator and typically rely on liquid metal coolant; AGR reactors are UK designs that use graphite moderator with CO2 coolant.

The Canada Deuterium Uranium reactor is CANDU. Its defining feature is using heavy water (deuterium oxide) as both moderator and coolant, which allows the reactor to run on natural uranium fuel without enrichment. Heavy water slows neutrons effectively while absorbing very few, so the natural U-235 present can sustain fission. This design is a pressurized heavy-water reactor (PHWR) and even allows online refueling without shutting the reactor down.

In contrast, Magnox reactors are gas-cooled with a graphite moderator and use natural uranium metal; FNR refers to fast-neutron reactors that use little or no moderator and typically rely on liquid metal coolant; AGR reactors are UK designs that use graphite moderator with CO2 coolant.