engleski

Radiological Implications of Spent Fuel Pool Capacity Increase by Spent Fuel Consolidation

Our recent analysis showed that from the criticality standpoint it is possible to increase capacity of the NPP Krško spent fuel pool by spent fuel consolidation to accommodate spent fuel assemblies for plant lifetime. The spent fuel consolidation will also impact the radiation dose rates in the vicinity of the NPP Krško spent fuel pool. In this paper we have investigated the radiological impact of spent fuel consolidation using simple engineering evaluation, QAD-CGGP code and SAS4 sequence of the SCALE code system. Gamma dose rates and neutron dose rates are calculated at different positions close to spent fuel pool surface for current and consolidated spent fuel pool configuration. The obtained dose rates are compared to dose limit 10 CFR 20 for the restricted work area.

spent fuel pool; radiological implications; capacity increase; consolidation

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