containment structure

A containment structure in nuclear physics serves as a crucial final barrier to prevent the release of radioactivity into the environment. This structure, often a robust building, is designed to withstand significant internal pressure and damage from potential accidents within the reactor. Its primary function is to contain any radioactive materials that might escape from the fuel cladding, reactor vessel, or shielding. Containment buildings are typically airtight and undergo rigorous testing to ensure they can minimize leakage, even under extreme conditions. They also protect the reactor components from external threats like natural disasters or impacts. While most commercial and high-power research reactors require containment, low-power research reactors are often exempt. Major accidents like those at Three Mile Island and Fukushima have tested these structures, with Western-style containments generally proving effective in limiting radioactive release.12