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← ScienceWhich unintended consequence results when moderation fails in a nuclear fission reactor core?
A)Neutron flux instability oscillations increase✓
B)Enriched uranium fuel consumption decreases
C)Gamma radiation shielding becomes ineffective
D)Delayed neutron population dramatically grows
💡 Explanation
If moderation fails which increases neutron speeds beyond optimum levels, neutron flux spatial oscillations arise because of uneven fission rates from Doppler broadening therefore neutron flux instability is the consequence rather than changes to fuel consumption under stable operating conditions.
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