Realization of thousand-second improved confinement plasma with Super I-mode in Tokamak EAST.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 36608124.
- Also identified by DOI 10.1126/sciadv.abq5273 and PMC identifier 9821864.
- Licence recorded as CC BY-NC.
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Abstract
Mastering nuclear fusion, which is an abundant, safe, and environmentally competitive energy, is a great challenge for humanity. Tokamak represents one of the most promising paths toward controlled fusion. Obtaining a high-performance, steady-state, and long-pulse plasma regime remains a critical issue. Recently, a big breakthrough in steady-state operation was made on the Experimental Advanced Superconducting Tokamak (EAST). A steady-state plasma with a world-record pulse length of 1056 s was obtained, where the density and the divertor peak heat flux were well controlled, with no core impurity accumulation, and a new high-confinement and self-organizing regime (Super I-mode = I-mode + e-ITB) was discovered and demonstrated. These achievements contribute to the integration of fusion plasma technology and physics, which is essential to operate next-step devices.