Steuerstäbe

Steuerstäbe, translated as "control rods" in English, are essential components in nuclear reactors. Their primary function is to control the rate of nuclear fission. They are typically made of materials that readily absorb neutrons, such as cadmium, boron, or hafnium. When thesteuerstäbe are inserted into the reactor core, they absorb a significant number of neutrons, thus reducing the number of fission reactions occurring. Conversely, when they are withdrawn, fewer neutrons are absorbed, and the fission rate increases. This allows for precise control of the reactor's power output and is crucial for safely starting up, shutting down, and maintaining a stable operating condition. In emergency situations,steuerstäbe can be rapidly inserted into the core to quickly halt the chain reaction, acting as a safety mechanism. The design and material ofsteuerstäbe are carefully chosen based on the specific type of reactor and its operating parameters.