This article describes an integrated Level 1eLevel 2 probabilistic risk assessment (PRA) methodology to evaluate the radiological risk during postulated accident scenarios initiated during the decommissioning phase of a typical Mark I containment boiling water reactor. The fuel damage scenarios include those initiated while the reactor is permanently shut down, defueled, and the spent fuel is located into the spent fuel storage pool. | Integrated Level 1eLevel 2 decommissioning probabilistic risk assessment for boiling water reactors
