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← ScienceWhich consequence dominates immediately following nuclear reactor SCRAM?
A)Rapid multiplication of delayed neutrons
B)Accumulation of fission decay products✓
C)Immediate cessation of prompt neutrons
D)Fuel cladding mechanical stress reduction
💡 Explanation
Fission continues due to radioactive decay of fission products generated during operation; this decay releases energy through Beta decay, creating afterheat. Therefore, decay heat dominates rather than rapid resumption of criticality because control rods damp the neutron flux.
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