Realization of thousand-second improved confinement plasma with Super I-mode in Tokamak EAST
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Author(s)
Song, Yuntao
Zou, Xiaolan
Gong, Xianzu
Becoulet, Alain
Buttery, Richard
Bonoli, Paul T.
Hoang, Tuong
Zhong, Xiaoming
Liu, Adi
Li, Erzhong
Date Issued
May 2022
Journal
Science Advances
Publisher
Science
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 nextstep devices.
Description
Submitted for publication in Science Advances
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Persistent DSpace Link
DOI of Published Version
doi.org/10.1126/sciadv.abq5273
https://doi.org/10.1126/sciadv.abq5273
