The CANDU Reactor System: An Appropriate Technology

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Science  10 Feb 1978:
Vol. 199, Issue 4329, pp. 657-664
DOI: 10.1126/science.199.4329.657


CANDU power reactors are characterized by the combination of heavy water as moderator and pressure tubes to contain the fuel and coolant. Their excellent neutron economy provides the simplicity and low costs of once-through natural-uranium fueling. Future benefits include the prospect of a near-breeder thorium fuel cycle to provide security of fuel supply without the need to develop a new reactor such as the fast breeder. These and other features make the CANDU system an appropriate technology for countries, like Canada, of intermediate economic and industrial capacity.