Reactors have automatic rapid shutdown systems, often referred to as SCRAM, and many advanced designs incorporate passive or inherent characteristics. However, even after shutdown, decay heat remains and must be removed. Safety does not depend solely on stopping the chain reaction, but on maintaining cooling, power supply, or sufficient passive systems over time.
All FAQ
57.
Can modern reactors shut down on their own?
Yes in part, but this does not mean cooling is not needed.
