Electron Heat Transport Measured in a Stochastic Magnetic Field

T. M. Biewer; C. B. Forest; J. K. Anderson; G. Fiksel; B. Hudson; S. C. Prager; J. S. Sarff; J. C. Wright; D. L. Brower; W. X. Ding; S. D. Terry

doi:10.1103/PhysRevLett.91.045004

Electron Heat Transport Measured in a Stochastic Magnetic Field

T. M. Biewer, C. B. Forest, J. K. Anderson, G. Fiksel, B. Hudson, S. C. Prager, J. S. Sarff, J. C. Wright, D. L. Brower, W. X. Ding, S. D. Terry

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67 Scopus citations

Abstract

New profile measurements have allowed the electron thermal diffusivity profile to be estimated from power balance in the Madison Symmetric Torus where magnetic islands overlap and field lines are stochastic. The measurements show that (1) the electron energy transport is conductive not convective, (2) the measured thermal diffusivities are in good agreement with numerical simulations of stochastic transport, and (3) transport is greatly reduced near the reversal surface where magnetic diffusion is small.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.91.045004
State	Published - Jul 24 2003
Externally published	Yes

Funding

The authors recognize the many contributions of the UW–Madison MST group, including collaborators from UCLA and RPI. This work was supported by the U.S. Department of Energy, in particular, the Magnetic Fusion Science program.

Funders	Funder number
U.S. Department of Energy

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10.1103/PhysRevLett.91.045004

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AU - Forest, C. B.

AU - Anderson, J. K.

AU - Fiksel, G.

AU - Hudson, B.

AU - Prager, S. C.

AU - Sarff, J. S.

AU - Wright, J. C.

AU - Brower, D. L.

AU - Ding, W. X.

AU - Terry, S. D.

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Electron Heat Transport Measured in a Stochastic Magnetic Field

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