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Three teams led by scientists at the US Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have won major blocks of time on two of the world's most powerful supercomputers. Two of the projects seek to advance the development of nuclear fusion by improving understanding of the superhot, electrically charged plasma gas that fuels fusion reactions.
In one project, researchers will use the computer time to simulate the dazzlingly complex conditions at the edge of magnetically confined tokamak plasmas. In another, researchers will study the rapid loss of plasma confinement caused by growing turbulence as fusion facilities become larger and more powerful.
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 article 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 ITER, 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 article in English on the KFE website, or in Korean in the Chosun Biz.