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논문 기본 정보

자료유형
학술저널
저자정보
Y.C. Li (Shenzhen University) M.H. Li (Institute of Plasma Physics, Chinese Academy of Sciences) M. Wang (Institute of Plasma Physics, Chinese Academy of Sciences) L. Liu (Institute of Plasma Physics, Chinese Academy of Sciences) X.J. Zhang (Institute of Plasma Physics, Chinese Academy of Sciences) C.M. Qin (Institute of Plasma Physics, Chinese Academy of Sciences) Y.F. Wang (Institute of Plasma Physics, Chinese Academy of Sciences) C.B. Wu (Institute of Plasma Physics, Chinese Academy of Sciences) L.N. Liu (Shenzhen University) J.C. Xu (Institute of Plasma Physics, Chinese Academy of Sciences) B. J. Ding (Institute of Plasma Physics, Chinese Academy of Sciences) X. D. Lin (Shenzhen University) B. J. Ding (Institute of Plasma Physics, Chinese Academy of Sciences) X. D. Lin (Shenzhen University) J. F. Shan (Institute of Plasma Physics, Chinese Academy of Sciences) F. K. Liu (Institute of Plasma Physics, Chinese Academy of Sciences) Y. P. Zhao (Institute of Plasma Physics, Chinese Academy of Sciences) T. Zhang (Institute of Plasma Physics, Chinese Academy of Sciences) X. Gao (Shenzhen University)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제1호
발행연도
2022.1
수록면
207 - 219 (13page)

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The suppression of high-intensity blob structures in the scrape-off layer (SOL) by ion-cyclotron range offrequencies (ICRF) power, leading to a decrease in the turbulent fluctuation level, is observed first in theExperimental Advanced Superconducting Tokamak (EAST) experiment. This suppression effect from ICRFpower injection is global in the whole SOL at EAST, i.e. blob structures both in the regions that aremagnetically connected to the active ICRF launcher and in the regions that are not connected to theactive ICRF launcher could be suppressed by ICRF power. However, more ICRF power is required to reachthe full blob structure suppression effect in the regions that are magnetically unconnected to the activelauncher than in the regions that are magnetically connected to the active launcher. Studies show that apossible reason for the blob suppression could be the enhanced Er B shear flow in the SOL, which issupported by the shaper radial gradient in the floating potential profiles sensed by the divertor probearrays with increasing ICRF power. The local RF wave power unabsorbed by the core plasma isresponsible for the modification of potential profiles in the SOL regions.

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