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New records on Wendelstein 7-X
Wendelstein 7-X—the leading fusion device of the stellarator type—achieved several new performance milestones during its latest run of experiments. Among them is a world record for triple product, the value that measures how close a fusion device is to generating net energy across the plasma.
It marks the point where the energy balance across the plasma becomes positive, and the fusion reaction can sustain itself without (or with greatly reduced) external heating. On the last day of its OP 2.3 campaign, which ended on May 22, the Wendelstein 7-X device sustained a new peak value of this key fusion parameter for 43 seconds. According to the IPP press release, the triple product world record for long pulses was made possible by the close collaboration between the Wendelstein 7-X team in Greifswald, the European fusion consortium EUROfusion, and partners from the United States.
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