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← ScienceWhich risk increases following prompt neutron emission in uranium fission?
A)Delayed criticality achievement probability rises✓
B)Lower waste-heat production by krypton
C)Conversion to helium fusion increases
D)Slower reaction due to cadmium control
💡 Explanation
Increased prompt neutron emission raises the probability of a self-sustaining chain reaction via neutron multiplication, leading to prompt criticality, because this mechanism contributes excess neutrons. Therefore, A is the risk that elevates, rather than slower reaction rates or different fusion byproducts.
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