Which risk increases significantly when a nuclear reactor employs fuel isotopes with high neutron absorption cross-sections?

💡 Explanation

Reduced breeding occurs because high absorption lowers neutron availability, disrupting transmutation of fertile to fissile isotopes. This neutron capture process reduces fuel production, therefore breeding diminishes, rather than runaway reactions that more neutrons would encourage.

• Which outcome occurs when a fluid transitions from a laminar regime to turbulent regime in a pipe, based strongly on Reynolds number?
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• Which risk increases when a reactor uses unenriched uranium fuel?
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