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By A.J. Roan
Metal Tech News 

Boron "detergent" for nuclear fusion

Scientists find method to add boron to active tungsten reactors Metal Tech News – October 12, 2022


Last updated 10/18/2022 at 2:33pm

Fisheye view of tungsten sheets inside the WEST tokamak fusion reactor.

CCY BY 4.0 Christopher Roux/EUROFUSION

The parts of the WEST tokamak fusion reactor in France are the closest representation to what is expected to be in future nuclear fusion reactors, making it the most appropriate to test the boron injection system developed by the PPPL.

Scientists at the U.S. Department of Energy's Princeton Plasma Physics Laboratory have found a way to add a dash of boron to a tungsten tokamak fusion reactor to keep its plasma clean during operations.

Because of its high melting point, tungsten is a metal of choice for helping tokamak components withstand the intense heat of the fusion process – often upwards of 150 million degrees Kelvin,...

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