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In the high-stakes race to realize fusion energy, a smaller lab may be putting the squeeze on the big boys. Worldwide efforts to harness fusion—the power source of the sun and stars—for energy on Earth currently focus on two multibillion-dollar facilities: the °ÄÃÅÁùºÏ²Ê¸ßÊÖ fusion reactor in France and the National Ignition Facility (NIF) in California. But other, cheaper approaches exist—and one of them may have a chance to be the first to reach "breakeven," a key milestone in which a process produces more energy than needed to trigger the fusion reaction.
At the Korea Institute of Fusion Energy (KFE), the KSTAR tokamak recommenced operations in December after a major upgrade to replace the…
KSTAR aims for longer plasmas
At the Korea Institute of Fusion Energy (KFE), the KSTAR tokamak recommenced operations in December after a major upgrade to replace the device's carbon divertor with a tungsten divertor.
According to an on the KFE website, the original carbon divertors could take a thermal load of 5MW/m², whereas the tungsten divertor can take 10MW/m². The upgrade is critical to the goal of sustaining a 100-million-degree plasma for 300 seconds by 2026. Data from the operational campaign will be directly relevant to °ÄÃÅÁùºÏ²Ê¸ßÊÖ, which will operate a tungsten divertor under similar plasma conditions in terms of shape and structure.
This testing campaign will continue through February 2024. Read more about the plans in this in English on the KFE website, or in Korean in the .