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Which outcome occurs when heavy isotopes accumulate inside a Tokamak's divertor?

A)Fusion power output is diminished
B)Plasma temperature profile is equalized
C)Neutron flux towards magnets decreases
D)Tritium inventory within the vessel falls

💡 Explanation

Fusion power diminishes because accumulation of high-Z isotopes results in increased Bremsstrahlung radiation, triggering radiative collapse because the increased radiation cools the plasma edge, therefore reducing fusion reactivity rather than other profile changes.

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