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← ScienceWhich 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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