Discuss the concept of breeding and doubling time and describe how abundant fertile actinides could be converted to excellent fissile actinides.
Breeding in reactor physics refers to the process where a nuclear reactor generates more fissile material than it consumes. This is typically achieved by converting fertile materials, which are not directly fissile, into fissile materials through neutron absorption and subsequent nuclear reactions. In a breeding reactor, fertile isotopes like Uranium-238 (U-238) or Thorium-232 (Th-232) absorb neutrons and undergo transformations that create fissile _________ _______ _________ ____ _____ _______ _________ __________ __________ _______ __________ ____.
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Discuss the concept of breeding and doubling time and describe how abundant fertile actinides could be converted to excellent fissile actinides.