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← ScienceWhich consequence results when high neutron flux damages control rod lattice?
A)Reduced neutron absorption cross-section✓
B)Increased moderator reactivity feedback
C)Enhanced radiative heat transfer
D)Accelerated cladding oxidation rate
💡 Explanation
Damage to the lattice structure introduces defects which decrease the number of available neutron absorbing nuclei via the Wigner effect, therefore lowering the control rod's neutron absorption rather than increasing reactivity feedback. It occurs because the lattice captures a lot. This mechanism relies on the specific properties of neutron capture within a crystal structure.
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