Level 1 PSA

Level 1 Probabilistic Safety Assessment (PSA) evaluates the likelihood of a nuclear reactor experiencing a core damage event, such as the fuel melting, due to potential failures or accidents. It systematically analyzes various components, systems, and scenarios that could lead to such an event, quantifying the probability based on historical data, engineering models, and operational information. The goal is to identify vulnerabilities and improve safety measures, ensuring that the chance of serious core damage remains extremely low. Essentially, Level 1 PSA provides a detailed picture of the reactor's safety performance and helps guide safety enhancements.