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← ScienceWhich outcome occurs after a criticality accident involving Uranium-235?
A)Neutron activation foils overheat rapidly✓
B)Control rods efficiently absorb neutrons
C)Delayed neutrons stabilize reactor flux
D)Xenon-135 concentration rapidly decreases
💡 Explanation
Neutron activation foils overheat because radiative capture drives a positive feedback loop; the increased neutron flux accelerates fission, therefore the foils melt rather than control rod absorption, because fission releases neutrons.
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