Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic?

C. C. Petty; T. C. Luce; D. C. McDonald; J. Mandrekas; M. R. Wade; J. Candy; J. G. Cordey; V. Drozdov; T. E. Evans; J. R. Ferron; R. J. Groebner; A. W. Hyatt; G. L. Jackson; R. J. La Haye; T. H. Osborne; R. E. Waltz

doi:10.1063/1.1666263

Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic?

C. C. Petty, T. C. Luce, D. C. McDonald, J. Mandrekas, M. R. Wade, J. Candy, J. G. Cordey, V. Drozdov, T. E. Evans, J. R. Ferron, R. J. Groebner, A. W. Hyatt, G. L. Jackson, R. J. La Haye, T. H. Osborne, R. E. Waltz

Fusion and Fission Energy and Science Di

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

70 Scopus citations

Abstract

The beta scaling of transport was measured using the experiments on the DIII-D tokamak. A four point scan varied β from 30% to 85% of the ideal ballooning stability limit. It was shown that the measured thermal diffusivities, normalized to the Bohm diffusion coefficient, also did not vary during the β scan to within the experimental uncertainties. It was found that the H-mode pedestal β varied in concert with the core β and showed no signs of saturation.

Original language	English
Pages (from-to)	2514-2522
Number of pages	9
Journal	Physics of Plasmas
Volume	11
Issue number	5 PART 2
DOIs	https://doi.org/10.1063/1.1666263
State	Published - May 2004

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Petty, C. C., Luce, T. C., McDonald, D. C., Mandrekas, J., Wade, M. R., Candy, J., Cordey, J. G., Drozdov, V., Evans, T. E., Ferron, J. R., Groebner, R. J., Hyatt, A. W., Jackson, G. L., La Haye, R. J., Osborne, T. H., & Waltz, R. E. (2004). Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic? Physics of Plasmas, 11(5 PART 2), 2514-2522. https://doi.org/10.1063/1.1666263

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title = "Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic?",

abstract = "The beta scaling of transport was measured using the experiments on the DIII-D tokamak. A four point scan varied β from 30% to 85% of the ideal ballooning stability limit. It was shown that the measured thermal diffusivities, normalized to the Bohm diffusion coefficient, also did not vary during the β scan to within the experimental uncertainties. It was found that the H-mode pedestal β varied in concert with the core β and showed no signs of saturation.",

author = "Petty, {C. C.} and Luce, {T. C.} and McDonald, {D. C.} and J. Mandrekas and Wade, {M. R.} and J. Candy and Cordey, {J. G.} and V. Drozdov and Evans, {T. E.} and Ferron, {J. R.} and Groebner, {R. J.} and Hyatt, {A. W.} and Jackson, {G. L.} and {La Haye}, {R. J.} and Osborne, {T. H.} and Waltz, {R. E.}",

year = "2004",

month = may,

doi = "10.1063/1.1666263",

language = "English",

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Petty, CC, Luce, TC, McDonald, DC, Mandrekas, J, Wade, MR, Candy, J, Cordey, JG, Drozdov, V, Evans, TE, Ferron, JR, Groebner, RJ, Hyatt, AW, Jackson, GL, La Haye, RJ, Osborne, TH & Waltz, RE 2004, 'Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic?', Physics of Plasmas, vol. 11, no. 5 PART 2, pp. 2514-2522. https://doi.org/10.1063/1.1666263

TY - JOUR

T1 - Beta scaling of transport on the DIII-D Tokamak

T2 - Is transport electrostatic or electromagnetic?

AU - Petty, C. C.

AU - Luce, T. C.

AU - McDonald, D. C.

AU - Mandrekas, J.

AU - Wade, M. R.

AU - Candy, J.

AU - Cordey, J. G.

AU - Drozdov, V.

AU - Evans, T. E.

AU - Ferron, J. R.

AU - Groebner, R. J.

AU - Hyatt, A. W.

AU - Jackson, G. L.

AU - La Haye, R. J.

AU - Osborne, T. H.

AU - Waltz, R. E.

PY - 2004/5

Y1 - 2004/5

N2 - The beta scaling of transport was measured using the experiments on the DIII-D tokamak. A four point scan varied β from 30% to 85% of the ideal ballooning stability limit. It was shown that the measured thermal diffusivities, normalized to the Bohm diffusion coefficient, also did not vary during the β scan to within the experimental uncertainties. It was found that the H-mode pedestal β varied in concert with the core β and showed no signs of saturation.

AB - The beta scaling of transport was measured using the experiments on the DIII-D tokamak. A four point scan varied β from 30% to 85% of the ideal ballooning stability limit. It was shown that the measured thermal diffusivities, normalized to the Bohm diffusion coefficient, also did not vary during the β scan to within the experimental uncertainties. It was found that the H-mode pedestal β varied in concert with the core β and showed no signs of saturation.

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DO - 10.1063/1.1666263

M3 - Article

AN - SCOPUS:2942517979

SN - 1070-664X

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EP - 2522

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5 PART 2

ER -

Beta scaling of transport on the DIII-D Tokamak: Is transport electrostatic or electromagnetic?

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