RAVEN/OSCAR-Fusion Coupling for Activated Corrosion Products Assessments, Sensitivity, and Uncertainty Quantification

Activated corrosion products (ACPs) may represent a significant source of radiological hazards in nuclear fusion reactors. Corrosion and erosion phenomena mobilize activated materials which are transported by the working fluid regions cooling system accessed worker personnel. Predicting contaminant transport tokamak circuits benefit radiation exposure assessment, design optimization, waste management, maintenance plan definition, terms identification. Several calculation tools have been made available for ACP determination systems. Among these, OSCAR-Fusion code, developed CEA (France), allows predicting generation closed water-cooled loops applications. This work aims to show straightforward sensitivity analysis methodology uncertainty quantification (UQ). A single assessment involves several neutronics, thermal-hydraulics, geometrical, water chemistry parameters. Coupling RAVEN, multipurpose framework INL (USA), UQ analyses that might provide useful indications designers safety analysts. presents general methodology, showing preliminary results obtained EU-DEMO divertor cassette primary heat-transfer