5 papers · 1 filter
First Observation of Fishbone-Driven Zonal Flows with Fine Reversed Structure in Tokamak Plasmas
Liutian Gao, Yuehao Ma, Huishan Cai +12
We present the first direct experimental observation of fishbone-driven zonal flows in the core of the EAST tokamak. In contrast to the global pattern predicted by previous models…
A programmable stellarator-tokamak hybrid for million-scale magnetic-configuration discovery
Guodong Yu, Xianyi Nie, Gwanggeun Seo +10
Tokamaks and stellarators are the leading magnetic-confinement concepts for fusion, but they rely on complementary design principles. Tokamaks use simple axisymmetric coils and pla…
Attention-aware convolutional neural networks for identification of magnetic islands in the tearing mode on EAST tokamak
Feifei Long, Yian Zhao, Yunjiao Zhang +16
The tearing mode, a large-scale MHD instability in tokamak, typically disrupts the equilibrium magnetic surfaces, leads to the formation of magnetic islands, and reduces core elect…
Edge Temperature Ring Oscillation Modulated by Turbulence Transition for Sustaining Stationary Improved Energy Confinement Plasmas
A. D. Liu, X. L. Zou, M. K. Han +33
A reproducible stationary improved confinement mode (I-mode) has been achieved recently in the Experimental Advanced Superconducting Tokamak, featuring good confinement without par…
I-mode investigation on the Experimental Advanced Superconducting Tokamak
X. Feng, A. D. Liu, C. Zhou +35
By analyzing large quantities of discharges in the unfavorable ion drift direction, the I-mode operation has been confirmed in EAST tokamak. During the L-…