Edge temperature gradient as intrinsic rotation drive in alcator C-Mod tokamak plasmas

J. E. Rice; J. W. Hughes; P. H. Diamond; Y. Kosuga; Y. A. Podpaly; M. L. Reinke; M. J. Greenwald; D. Gürcan; T. S. Hahm; A. E. Hubbard; E. S. Marmar; C. J. McDevitt; D. G. Whyte

doi:10.1103/PhysRevLett.106.215001

Edge temperature gradient as intrinsic rotation drive in alcator C-Mod tokamak plasmas

J. E. Rice
, J. W. Hughes
, P. H. Diamond
, Y. Kosuga
, Y. A. Podpaly
, M. L. Reinke
, M. J. Greenwald
, D. Gürcan
, T. S. Hahm
, A. E. Hubbard
, E. S. Marmar
, C. J. McDevitt
, D. G. Whyte

Massachusetts Institute of Technology
National Fusion Research Institute
University of California, San Diego
LPP
Princeton Plasma Physics Laboratory

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

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.

Original language	English
Article number	215001
Journal	Physical Review Letters
Volume	106
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.106.215001
Publication status	Published - 23 May 2011
Externally published	Yes

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Rice, J. E., Hughes, J. W., Diamond, P. H., Kosuga, Y., Podpaly, Y. A., Reinke, M. L., Greenwald, M. J., Gürcan, D., Hahm, T. S., Hubbard, A. E., Marmar, E. S., McDevitt, C. J., & Whyte, D. G. (2011). Edge temperature gradient as intrinsic rotation drive in alcator C-Mod tokamak plasmas. Physical Review Letters, 106(21), Article 215001. https://doi.org/10.1103/PhysRevLett.106.215001

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title = "Edge temperature gradient as intrinsic rotation drive in alcator C-Mod tokamak plasmas",

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.",

author = "Rice, \{J. E.\} and Hughes, \{J. W.\} and Diamond, \{P. H.\} and Y. Kosuga and Podpaly, \{Y. A.\} and Reinke, \{M. L.\} and Greenwald, \{M. J.\} and D. G{\"u}rcan and Hahm, \{T. S.\} and Hubbard, \{A. E.\} and Marmar, \{E. S.\} and McDevitt, \{C. J.\} and Whyte, \{D. G.\}",

year = "2011",

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doi = "10.1103/PhysRevLett.106.215001",

language = "English",

volume = "106",

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AU - Rice, J. E.

AU - Hughes, J. W.

AU - Diamond, P. H.

AU - Kosuga, Y.

AU - Podpaly, Y. A.

AU - Reinke, M. L.

AU - Greenwald, M. J.

AU - Gürcan, D.

AU - Hahm, T. S.

AU - Hubbard, A. E.

AU - Marmar, E. S.

AU - McDevitt, C. J.

AU - Whyte, D. G.

PY - 2011/5/23

Y1 - 2011/5/23

N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevLett.106.215001

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VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

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ER -

Edge temperature gradient as intrinsic rotation drive in alcator C-Mod tokamak plasmas

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