Fast Breeder Reactor 2
Fast Breeder Reactor 2 :
Nuclear Energy and Nuclear Disasters. Nuclear reactor with a chain reaction maintained by fast neutrons and generating more fissile material than it consumes. The fertile material U-238 is converted into the fissile material Pu-239 by neutron capture and two subsequent beta decays. The nuclear fission is effected to obtain a high breeding effect, practically exclusively with fast neutrons. Since the neutrons should be decelerated as little as possible, water is excluded as a coolant due to its decelerating effect. For technical reasons, sodium, which is liquid above temperatures of 97.8 °C, is particularly well suited. The fast breeder can utilize the uranium up to 60 times better than the light water reactors
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