7.20 understand the role played by the control rods and moderator when the fission process is used as an energy source to generate electricity.

7.20 understand the role played by the control rods and moderator when the fission process is used as an energy source to generate electricity.

In a chain reaction, huge amount of energy are produced which is used to generate electricity. In the chain reaction if the neutron behaves in unexpected way, explosion might occur. Therefore, moderator are used to slow neutrons and slow the fission reaction to a steady and safe way. Control rods are used to absorb neutrons completely to shut down the fission process.