WPNCS Expert Group on Burn-up Credit Criticality Safety (BUC)

Burn-up credit is a safety approach that accounts for the reduction in reactivity of configurations with spent nuclear fuel due to the change in their composition after irradiation.

This NEA expert group was set up to examine burn-up credit as applied to criticality safety in the transportation, storage and treatment of spent fuel for a wide range of fuel types and reactors, including UOX and MOX fuels for PWR, BWR, and VVER.

Under the guidance of the Working Party on Nuclear Criticality Safety, the major assignments of the expert group include:

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For more information on BUC activities please contact .

Last reviewed: 4 April 2011

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