Journal
PLASMA SCIENCE & TECHNOLOGY
Volume 22, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2058-6272/ab84eb
Keywords
intrinsic torque; balanced injection; momentum transport
Categories
Funding
- National Key Research and Development Program of China [2017YFE0301300, 2017YFE0302000]
- Key Program of Research and Development of Hefei Science Center, CAS [2017HSC-KPRD002]
- Distinguished Young Scholar of Anhui Provincial Natural Science Foundation [1908085J01]
- Key Projects of Hunan Provincial Department of Education [18A238]
- Key Laboratory of Magnetic Confinement Nuclear Fusion Research in Hengyang [2018KJ108]
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Direct measurements of the intrinsic torque profile in L-mode plasmas on the EAST tokamak have been performed using the balanced neutral beam injection. Co- and counter-current neutral beams are modulated to balance the intrinsic and externally injected torques, which result in the rotation profile close to zero and flat. The experimental results show that the intrinsic torque derived from momentum balance equations is found to be in the co-current direction, peaked in the plasma edge and negligibly small in the core.
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