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Which consequence results when isotopic enrichment increases deuterium concentration?

A)Plasma confinement efficiency reduces rapidly
B)Catalytic reaction rates decrease sharply
C)Superconducting transition temperature rises rapidly
D)Material neutron embrittlement rate accelerates

💡 Explanation

Increasing deuterium levels enhances neutron activation via neutron capture, increasing material transmutation leading to neutron embrittlement; because this causes lattice defects, therefore neutron embrittlement accelerates in the reactor vessel, rather than other reactor operating characteristic changes.

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