Catching tokamak fastballs: Controlling runaway electrons

a leading design concept for producing nuclear fusion energy—can, under certain rare fault conditions, produce beams of very energetic “runaway” electrons that have the potential to damage interior surfaces of the device. In the event of such a fault, a tokamak-based nuclear fusion power plant will have to employ protection systems to prevent any damage.

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Catching tokamak fastballs: Controlling runaway electrons