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How is chain reaction controlled in a nuclear power plant? Chain reaction is controlled through using neutron absorbing materials as reactor control rods (of high neutron absorbing material), boron, and/or cadmium.
This is the principle behind nuclear reactors that produce power and generate electricity. Controlled Nuclear fission is used in nuclear reactors and harnessed for electricity where uncontrolled nuclear fission is used for war and nuclear weapons.his is the principle behind nuclear reactors that produce power and generate electricity. Controlled Nuclear fission is used in nuclear reactors and harnessed for electricity where uncontrolled nuclear fission is used for war and nuclear weapons.