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← ScienceWhich outcome occurs within reactor fuel rods during neutron flux peaking?
A)Increased fission product neutron absorption✓
B)Moderator chemical oxidation accelerates locally
C)Reduced control rod reactivity worth
D)Cladding tensile stresses decrease modestly
💡 Explanation
Increased neutron flux causes higher fission rates, therefore increasing neutron-absorbing fission product concentration due to neutron capture; this is neutron poisoning, rather than control rod interference from shadowing effects, because local reaction rate determines the equilibrium concentration.
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