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Which outcome occurs when a tokamak fusion reactor's plasma density increases beyond its operational threshold, limiting fusion output?

A)Increased neutron flux emission happens
B)Plasma thermal quench event occurs
C)Bremsstrahlung radiation losses escalate
D)Helium ash accumulates excessively fast

💡 Explanation

A plasma quench occurs because exceeding the density limit in a tokamak leads to MHD instability; this causes rapid loss of confinement and energy impacting the reactor walls, therefore a quench, rather than gradually increasing neutrons or radiation.

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