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← ScienceWhich outcome results from neutron moderation failure in uranium fission?
A)Thermal runaway accelerates exponentially✓
B)Gamma radiation emission decreases rapidly
C)Fission reaction ceases instantaneously
D)Conversion to plutonium becomes dominant
💡 Explanation
Neutron moderation slows neutrons to sustain fission; without it, neutrons are too fast. Chain reaction efficiency collapses and thermal runaway accelerates because the rapid increase in fast neutron flux causes uncontrolled, very high-energy fissions, therefore leading to exponential overheating, rather than a controlled process.
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