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← ScienceWhich outcome occurs when xenon-135 builds up excessively within a nuclear reactor?
A)Neutron absorption reduces chain reaction✓
B)Increased fuel pellet cladding corrosion
C)Moderator temperature decreases sharply
D)Control rods ejected from the core
💡 Explanation
Xenon-135 is a potent neutron absorber formed during uranium fission; thus, xenon poisoning causes reactor power to decrease because neutron absorption by xenon overwhelms fission chain reaction, rather than fuel damage or core temperature shifts, which are results of other failures.
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