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Which process causes increased neutron production within a nuclear reactor core?

A)Nuclear fission chain reaction diverging
B)Moderator density dropping sharply
C)Accumulation of xenon-135 byproduct
D)Control rod insertion being impeded

💡 Explanation

A divergent nuclear fission chain reaction increases neutron production because the mechanism of stimulated fission overwhelms neutron absorption; therefore more neutrons bombard fissile material, rather than control rods consuming/reducing the existing neuron population.

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