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← ScienceWhich effect changes when heavy water coolant escapes a CANDU reactor core?
A)Reactor power output decreases
B)Fission product half-lives lessen
C)Neutron moderation efficiency decreases✓
D)Fuel rod corrosion rate lessens
💡 Explanation
Reduced heavy water means less deuterium to slow neutrons, therefore a decreased rate of the neutron moderation because it can't transfer energy efficiently, rather than other changes; fuel properties remain consistent.
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