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Keyword: thermalquench

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  • Scientists bring the fusion energy that lights the sun and stars closer to reality on Earth

    09/28/2022 5:43:18 PM PDT · by BenLurkin · 19 replies
    /phys.org ^ | SEPTEMBER 27, 2022 | John Greenwald, Princeton Plasma Physics Laboratory
    ....the source of the sudden and puzzling collapse of heat that precedes disruptions that can damage doughnut-shaped tokamak fusion facilities. Researchers traced the collapse to the 3D disordering of the strong magnetic fields that bottle up the hot, charged plasma gas that fuels the reactions. The strong magnetic fields substitute in fusion facilities for the immense gravity that holds fusion reactions in place in celestial bodies. But when disordered by plasma instability in laboratory experiments the field lines allow the superhot plasma heat to rapidly escape confinement. Such million-degree heat crushes plasma particles together to release fusion energy and can...