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After bringing the magnetic coil systems of JT-60SA to superconducting temperatures in July 2023, energization—the process of running current through the magnets—has begun.
The toroidal field coil system (18 D-shaped coils) was put through a series of tests in August to verify that the system's quench detection and protection circuits were working optimally and that the current could be safely increased. Now, tests have begun on the tokamak's six ring-shaped equilibrium field coils, with limited voltages and currents at the start to avoid unnecessary risk.
Read more about JT-60SA commissioning activities on this website.
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.