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WEST claims latest plasma confinement record

March 4, 2025, 9:32AMNuclear News

The WEST tokamak. (Photo: L. Godart/CEA)

The French magnetic confinement fusion tokamak known as WEST maintained a plasma in February for more than 22 minutes—1,337 seconds, to be precise—and “smashed” the previous record plasma duration for a tokamak with a 25 percent improvement, according to the CEA, which operates the machine. The previous 1,006-second record was set by China’s EAST just a few weeks prior. Records are made to be broken, but this rapid progress illustrates a collective, global increase in plasma confinement expertise, aided by tungsten in key components.

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WEST claims latest plasma confinement record

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