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← ScienceWhich event occurs when neutron moderators fail in fission?
A)Chain reaction propagation slows down✓
B)Fuel enrichment requirements decrease
C)Reaction temperature becomes more stable
D)Fission product generation is minimized
💡 Explanation
Slowing down occurs primarily because neutron moderation decreases, stopping the chain reaction. The *neutron thermalization* mechanism relies on moderators to reduce neutron speed; therefore, the fissile isotopes stop effectively absorbing the impact rather than causing higher reactions.
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