Radial electric field required to suppress ion temperature gradient modes in the Electric Tokamak

M. W. Kissick; J. N. Leboeuf; S. C. Cowley; J. M. Dawson; V. K. Decyk; P. A. Gourdain; J. L. Gauvreau; P. A. Pribyl; L. W. Schmitz; R. D. Sydora; G. R. Tynan

doi:10.1063/1.873759

Radial electric field required to suppress ion temperature gradient modes in the Electric Tokamak

M. W. Kissick, J. N. Leboeuf, S. C. Cowley, J. M. Dawson, V. K. Decyk, P. A. Gourdain, J. L. Gauvreau, P. A. Pribyl, L. W. Schmitz, R. D. Sydora, G. R. Tynan

Research output: Contribution to journal › Conference article › peer-review

16 Scopus citations

Abstract

The Electric Tokamak (ET), currently under construction at the University of California-Los Angeles, is designed to rotate poloidally via a radial current induced by fast wave rf heating fast enough to bifurcate the plasma into a global "H mode" ("high confinement mode"). A global gyrokinetic code is used to explore and illustrate some of the effects on ion temperature gradient turbulence. The realistic radial electric field required to completely suppress these modes for ET parameters is demonstrated to be <-30 V/cm at its maximum near the half radius. The effects of both a poloidally supersonic bulk rotation threshold and the shear in this rotation near that supersonic threshold were shown to be important in reducing these modes.

Original language	English (US)
Pages (from-to)	4722-4727
Number of pages	6
Journal	Physics of Plasmas
Volume	6
Issue number	12
DOIs	https://doi.org/10.1063/1.873759
State	Published - Dec 1999
Externally published	Yes
Event	Proceedings of the 1999 APS Centennial Meeting - Atlanta, GA, United States Duration: Mar 20 1999 → Mar 26 1999

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.873759

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@article{7addc27f55df446db51a606838a894e3,

title = "Radial electric field required to suppress ion temperature gradient modes in the Electric Tokamak",

abstract = "The Electric Tokamak (ET), currently under construction at the University of California-Los Angeles, is designed to rotate poloidally via a radial current induced by fast wave rf heating fast enough to bifurcate the plasma into a global {"}H mode{"} ({"}high confinement mode{"}). A global gyrokinetic code is used to explore and illustrate some of the effects on ion temperature gradient turbulence. The realistic radial electric field required to completely suppress these modes for ET parameters is demonstrated to be <-30 V/cm at its maximum near the half radius. The effects of both a poloidally supersonic bulk rotation threshold and the shear in this rotation near that supersonic threshold were shown to be important in reducing these modes.",

author = "Kissick, {M. W.} and Leboeuf, {J. N.} and Cowley, {S. C.} and Dawson, {J. M.} and Decyk, {V. K.} and Gourdain, {P. A.} and Gauvreau, {J. L.} and Pribyl, {P. A.} and Schmitz, {L. W.} and Sydora, {R. D.} and Tynan, {G. R.}",

year = "1999",

month = dec,

doi = "10.1063/1.873759",

language = "English (US)",

volume = "6",

pages = "4722--4727",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "12",

note = "Proceedings of the 1999 APS Centennial Meeting ; Conference date: 20-03-1999 Through 26-03-1999",

}

TY - JOUR

T1 - Radial electric field required to suppress ion temperature gradient modes in the Electric Tokamak

AU - Kissick, M. W.

AU - Leboeuf, J. N.

AU - Cowley, S. C.

AU - Dawson, J. M.

AU - Decyk, V. K.

AU - Gourdain, P. A.

AU - Gauvreau, J. L.

AU - Pribyl, P. A.

AU - Schmitz, L. W.

AU - Sydora, R. D.

AU - Tynan, G. R.

PY - 1999/12

Y1 - 1999/12

N2 - The Electric Tokamak (ET), currently under construction at the University of California-Los Angeles, is designed to rotate poloidally via a radial current induced by fast wave rf heating fast enough to bifurcate the plasma into a global "H mode" ("high confinement mode"). A global gyrokinetic code is used to explore and illustrate some of the effects on ion temperature gradient turbulence. The realistic radial electric field required to completely suppress these modes for ET parameters is demonstrated to be <-30 V/cm at its maximum near the half radius. The effects of both a poloidally supersonic bulk rotation threshold and the shear in this rotation near that supersonic threshold were shown to be important in reducing these modes.

AB - The Electric Tokamak (ET), currently under construction at the University of California-Los Angeles, is designed to rotate poloidally via a radial current induced by fast wave rf heating fast enough to bifurcate the plasma into a global "H mode" ("high confinement mode"). A global gyrokinetic code is used to explore and illustrate some of the effects on ion temperature gradient turbulence. The realistic radial electric field required to completely suppress these modes for ET parameters is demonstrated to be <-30 V/cm at its maximum near the half radius. The effects of both a poloidally supersonic bulk rotation threshold and the shear in this rotation near that supersonic threshold were shown to be important in reducing these modes.

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U2 - 10.1063/1.873759

DO - 10.1063/1.873759

M3 - Conference article

AN - SCOPUS:0001501619

SN - 1070-664X

VL - 6

SP - 4722

EP - 4727

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

T2 - Proceedings of the 1999 APS Centennial Meeting

Y2 - 20 March 1999 through 26 March 1999

ER -

Radial electric field required to suppress ion temperature gradient modes in the Electric Tokamak

Abstract

All Science Journal Classification (ASJC) codes

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