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← ScienceWhich risk significantly increases during sustained nuclear fission?
A)Xenon-135 neutron absorption poisoning✓
B)Increased moderator parasitic capture
C)Fuel cladding mechanical creep failure
D)Reduced breeding of fissile plutonium
💡 Explanation
Neutron absorption of Xenon-135 causes reactor poisoning; therefore, high concentrations following fission reduce reactivity; this is because of increased neutron capture, rather than structural failure limited by creep or decreased breeding rates.
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