'''Canadian deuterium uranium reactor''' (CANDU) is a pressurized heavy water nuclear reactor using deuterium oxide (D<sub>2</sub>O), rather than light water (H<sub>2</sub>O), as the coolant and moderator. In a deuterium-moderated-reactor, fuel made from natural [[uranium]] (0.71 U-235) can sustain a [[chain reaction]]. The CANDU reactor core also allows of on-power refueling, which makes for greater efficiency. | '''Canadian deuterium uranium reactor''' (CANDU) is a pressurized heavy water nuclear reactor using deuterium oxide (D<sub>2</sub>O), rather than light water (H<sub>2</sub>O), as the coolant and moderator. In a deuterium-moderated-reactor, fuel made from natural [[uranium]] (0.71 U-235) can sustain a [[chain reaction]]. The CANDU reactor core also allows of on-power refueling, which makes for greater efficiency. |