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

71 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

@article{2185c0e4f3d9429c82d0f41644db181e,

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",

volume = "11",

pages = "2514--2522",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "5 PART 2",

}

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.

UR - https://www.scopus.com/pages/publications/2942517979

U2 - 10.1063/1.1666263

DO - 10.1063/1.1666263

M3 - Article

AN - SCOPUS:2942517979

SN - 1070-664X

VL - 11

SP - 2514

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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