Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge

L. L. Lao; R. J. La Haye; K. H. Burrell; V. S. Chan; J. R. Ferron; C. L. Rettig; G. Rewoldt; J. T. Scoville; G. M. Staebler; E. J. Strait; W. M. Tang; T. S. Taylor; D. Wròblewski

doi:10.1063/1.872634

Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge

L. L. Lao, R. J. La Haye, K. H. Burrell, V. S. Chan, J. R. Ferron, C. L. Rettig, G. Rewoldt, J. T. Scoville, G. M. Staebler, E. J. Strait, W. M. Tang, T. S. Taylor, D. Wròblewski

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Abstract

The role of ExB flow shear on confinement enhancement in the DIII-D tokamak [Plasma Physics and Controlled Nuclear Fusion Research, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. 1, p. 159] high internal inductance discharges with high-confinement edge is investigated experimentally using a nonaxisymmetric poloidal magnetic-field perturbation from an external coil to drag down the plasma toroidal rotation. At similar values of internal inductance, discharges which rotate faster and have a stronger ExB flow shear have better confinement. These results indicate that ExB flow shear likely plays an important role in the confinement enhancement of these discharges.

Original language	English
Pages (from-to)	1050-1055
Number of pages	6
Journal	Physics of Plasmas
Volume	5
Issue number	4
DOIs	https://doi.org/10.1063/1.872634
State	Published - Apr 1998
Externally published	Yes

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Lao, L. L., La Haye, R. J., Burrell, K. H., Chan, V. S., Ferron, J. R., Rettig, C. L., Rewoldt, G., Scoville, J. T., Staebler, G. M., Strait, E. J., Tang, W. M., Taylor, T. S., & Wròblewski, D. (1998). Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge. Physics of Plasmas, 5(4), 1050-1055. https://doi.org/10.1063/1.872634

@article{a1769d2768b24262ac4078455d35ff6c,

title = "Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge",

abstract = "The role of ExB flow shear on confinement enhancement in the DIII-D tokamak [Plasma Physics and Controlled Nuclear Fusion Research, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. 1, p. 159] high internal inductance discharges with high-confinement edge is investigated experimentally using a nonaxisymmetric poloidal magnetic-field perturbation from an external coil to drag down the plasma toroidal rotation. At similar values of internal inductance, discharges which rotate faster and have a stronger ExB flow shear have better confinement. These results indicate that ExB flow shear likely plays an important role in the confinement enhancement of these discharges.",

author = "Lao, {L. L.} and {La Haye}, {R. J.} and Burrell, {K. H.} and Chan, {V. S.} and Ferron, {J. R.} and Rettig, {C. L.} and G. Rewoldt and Scoville, {J. T.} and Staebler, {G. M.} and Strait, {E. J.} and Tang, {W. M.} and Taylor, {T. S.} and D. Wr{\`o}blewski",

year = "1998",

month = apr,

doi = "10.1063/1.872634",

language = "English",

volume = "5",

pages = "1050--1055",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "4",

}

Lao, LL, La Haye, RJ, Burrell, KH, Chan, VS, Ferron, JR, Rettig, CL, Rewoldt, G, Scoville, JT, Staebler, GM, Strait, EJ, Tang, WM, Taylor, TS & Wròblewski, D 1998, 'Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge', Physics of Plasmas, vol. 5, no. 4, pp. 1050-1055. https://doi.org/10.1063/1.872634

TY - JOUR

T1 - Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge

AU - Lao, L. L.

AU - La Haye, R. J.

AU - Burrell, K. H.

AU - Chan, V. S.

AU - Ferron, J. R.

AU - Rettig, C. L.

AU - Rewoldt, G.

AU - Scoville, J. T.

AU - Staebler, G. M.

AU - Strait, E. J.

AU - Tang, W. M.

AU - Taylor, T. S.

AU - Wròblewski, D.

PY - 1998/4

Y1 - 1998/4

N2 - The role of ExB flow shear on confinement enhancement in the DIII-D tokamak [Plasma Physics and Controlled Nuclear Fusion Research, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. 1, p. 159] high internal inductance discharges with high-confinement edge is investigated experimentally using a nonaxisymmetric poloidal magnetic-field perturbation from an external coil to drag down the plasma toroidal rotation. At similar values of internal inductance, discharges which rotate faster and have a stronger ExB flow shear have better confinement. These results indicate that ExB flow shear likely plays an important role in the confinement enhancement of these discharges.

AB - The role of ExB flow shear on confinement enhancement in the DIII-D tokamak [Plasma Physics and Controlled Nuclear Fusion Research, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. 1, p. 159] high internal inductance discharges with high-confinement edge is investigated experimentally using a nonaxisymmetric poloidal magnetic-field perturbation from an external coil to drag down the plasma toroidal rotation. At similar values of internal inductance, discharges which rotate faster and have a stronger ExB flow shear have better confinement. These results indicate that ExB flow shear likely plays an important role in the confinement enhancement of these discharges.

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U2 - 10.1063/1.872634

DO - 10.1063/1.872634

M3 - Article

AN - SCOPUS:0001561969

SN - 1070-664X

VL - 5

SP - 1050

EP - 1055

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 4

ER -

Role of ExB flow shear on confinement enhancement in DIII-D high internal inductance discharges with high-confinement edge

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