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Which risk increases when molten salt reactor fuel isotopes deviate?

A)Delayed neutron precursor concentration decreases
B)Fuel salt freezing temperature decreases
C)Xenon poisoning reaction rates decrease
D)Tritium breeding blanket reaction decreases

💡 Explanation

Decreasing delayed neutron precursors reduces the reactor's ability to react to reactivity changes because neutron lifetime decreases. This relies on radioactive decay properties of isotopes. Therefore a control anomaly risk rises, rather than altered freezing temperature.

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