Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator C-Mod Tokamak Plasmas
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Rice-2011-Edge Temperature Gra.pdf
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Author(s)
Rice, John E.
Diamond, P. H.
Kosuga, Y.
Reinke, Matthew Logan
Greenwald, Martin J.
Gürcan, Ö. D.
Hahm, T. S.
Marmar, Earl S.
McDevitt, C. J.
Hughes Jr, Jerry
Date Issued
May 2011
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Rice, J. et al. “Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator C-Mod Tokamak Plasmas.” Physical Review Letters 106.21 (2011) © 2011 American Physical Society
Version
Final published version
Abstract
Intrinsic rotation has been observed in I-mode plasmas from the C-Mod tokamak, and is found to be similar to that in H mode, both in its edge origin and in the scaling with global pressure. Since both plasmas have similar edge ∇T, but completely different edge ∇n, it may be concluded that the drive of the intrinsic rotation is the edge ∇T rather than ∇P. Evidence suggests that the connection between gradients and rotation is the residual stress, and a scaling for the rotation from conversion of free energy to macroscopic flow is calculated.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.106.215001
