Barrier degradation or failure
Radionuclide transport through intact barriers
Chemical interactions affecting transport and form
Physical deposition of radioactive material
Effects of explosions on transport and barriers
Transport of material in gaseous form (pressure differences, blowdown, expansion, contraction, buoyancy, chemical reaction products)
Heat generation from various sources (reactivity additions, decay heat, exothermic reactions, recriticality)
Heat removal mechanisms (forced convection, natural convection, conduction, thermal radiation, endothermic reactions)
Physical movement of core or source materials
General mechanical processes affecting transport (e.g., pressure-driven flow)
Other phenomena not covered by the standard categories
Transformation of radionuclides through decay and buildup
Resuspension of deposited material
Transport of material in solid form (diffusion, gravity, steam/water, other liquids, liftoff based on volatility)
General thermal processes affecting transport
Description
The types of transport phenomena that can affect radionuclide release.
Implements
MS-B5