Substances with a large neutronUncharged elementary particle with a mass of 1.67492716 ·10... absorption cross-section absorbing neutrons, an undesirable effect. Some of the fission productsNuclides generated by fission or subsequent radioactive deca... generated during fissionSee 'nuclear fission'. have a high neutronUncharged elementary particle with a mass of 1.67492716 ·10... absorption capacity, such as xenon-135 and samarium-149. The poisoningSome of the fission products generated during the operation ... of a reactorSystem used to initiate, maintain and control a fission chai... by fission productsNuclides generated by fission or subsequent radioactive deca... may become so serious that the chain reactionSelf-perpetuating reaction. In a fission chain reaction, a f... comes to a standstill.
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