Internal transport barriers in jet deuterium-tritium plasmas

C. Gormezano; Y. F. Baranov; C. D. Challis; I. Coffey; G. A. Cottrell; A. C. Ekedahl; C. M. Greenfield; A. C. Howman; G. T.A. Huysmans; M. Keilhacker; X. Litaudon; T. C. Luce; B. W. Rice; F. Rochard; G. J. Sadler; P. A.J. Schild; A. C.C. Sips; F. X. Söldner; E. J. Strait; B. J.D. Tubbing; M. R. Wade; D. J. Ward

doi:10.1103/PhysRevLett.80.5544

Internal transport barriers in jet deuterium-tritium plasmas

C. Gormezano
, Y. F. Baranov
, C. D. Challis
, I. Coffey
, G. A. Cottrell
, A. C. Ekedahl
, C. M. Greenfield
, A. C. Howman
, G. T.A. Huysmans
, M. Keilhacker
, X. Litaudon
, T. C. Luce
, B. W. Rice
, F. Rochard
, G. J. Sadler
, P. A.J. Schild
, A. C.C. Sips
, F. X. Söldner
, E. J. Strait
, B. J.D. Tubbing

M. R. Wade, D. J. Ward

Fusion and Fission Energy and Science Di

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

116 Scopus citations

Abstract

The observation of internal transport barriers (ITBs) in which ion thermal diffusivity is reduced to a neoclassical level has been made for the first time in tokamak plasmas fueled with deuterium and tritium ions using a broad current density profile. The heating and current profiles required to obtain an ITB are similar in D-T and D-D plasmas. Central ion temperatures of 40 keV and plasma pressure gradients of 10⁶ Pa /m were observed in a D-T plasma, leading to a fusion triple product n_iT_iτ_E = 1.10²¹m⁻³ ke V s and 8.2 MW of fusion power. There is potential for further optimization as a step towards the development of efficient tokamak fusion reactors.

Original language	English
Pages (from-to)	5544-5547
Number of pages	4
Journal	Physical Review Letters
Volume	80
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.80.5544
State	Published - 1998

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Gormezano, C., Baranov, Y. F., Challis, C. D., Coffey, I., Cottrell, G. A., Ekedahl, A. C., Greenfield, C. M., Howman, A. C., Huysmans, G. T. A., Keilhacker, M., Litaudon, X., Luce, T. C., Rice, B. W., Rochard, F., Sadler, G. J., Schild, P. A. J., Sips, A. C. C., Söldner, F. X., Strait, E. J., ... Ward, D. J. (1998). Internal transport barriers in jet deuterium-tritium plasmas. Physical Review Letters, 80(25), 5544-5547. https://doi.org/10.1103/PhysRevLett.80.5544

@article{f5b505a4ec4d47e78adb05daded84f30,

title = "Internal transport barriers in jet deuterium-tritium plasmas",

abstract = "The observation of internal transport barriers (ITBs) in which ion thermal diffusivity is reduced to a neoclassical level has been made for the first time in tokamak plasmas fueled with deuterium and tritium ions using a broad current density profile. The heating and current profiles required to obtain an ITB are similar in D-T and D-D plasmas. Central ion temperatures of 40 keV and plasma pressure gradients of 106 Pa /m were observed in a D-T plasma, leading to a fusion triple product niTiτE = 1.1021m−3 ke V s and 8.2 MW of fusion power. There is potential for further optimization as a step towards the development of efficient tokamak fusion reactors.",

author = "C. Gormezano and Baranov, \{Y. F.\} and Challis, \{C. D.\} and I. Coffey and Cottrell, \{G. A.\} and Ekedahl, \{A. C.\} and Greenfield, \{C. M.\} and Howman, \{A. C.\} and Huysmans, \{G. T.A.\} and M. Keilhacker and X. Litaudon and Luce, \{T. C.\} and Rice, \{B. W.\} and F. Rochard and Sadler, \{G. J.\} and Schild, \{P. A.J.\} and Sips, \{A. C.C.\} and S{\"o}ldner, \{F. X.\} and Strait, \{E. J.\} and Tubbing, \{B. J.D.\} and Wade, \{M. R.\} and Ward, \{D. J.\}",

year = "1998",

doi = "10.1103/PhysRevLett.80.5544",

language = "English",

volume = "80",

pages = "5544--5547",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

}

Gormezano, C, Baranov, YF, Challis, CD, Coffey, I, Cottrell, GA, Ekedahl, AC, Greenfield, CM, Howman, AC, Huysmans, GTA, Keilhacker, M, Litaudon, X, Luce, TC, Rice, BW, Rochard, F, Sadler, GJ, Schild, PAJ, Sips, ACC, Söldner, FX, Strait, EJ, Tubbing, BJD, Wade, MR & Ward, DJ 1998, 'Internal transport barriers in jet deuterium-tritium plasmas', Physical Review Letters, vol. 80, no. 25, pp. 5544-5547. https://doi.org/10.1103/PhysRevLett.80.5544

TY - JOUR

T1 - Internal transport barriers in jet deuterium-tritium plasmas

AU - Gormezano, C.

AU - Baranov, Y. F.

AU - Challis, C. D.

AU - Coffey, I.

AU - Cottrell, G. A.

AU - Ekedahl, A. C.

AU - Greenfield, C. M.

AU - Howman, A. C.

AU - Huysmans, G. T.A.

AU - Keilhacker, M.

AU - Litaudon, X.

AU - Luce, T. C.

AU - Rice, B. W.

AU - Rochard, F.

AU - Sadler, G. J.

AU - Schild, P. A.J.

AU - Sips, A. C.C.

AU - Söldner, F. X.

AU - Strait, E. J.

AU - Tubbing, B. J.D.

AU - Wade, M. R.

AU - Ward, D. J.

PY - 1998

Y1 - 1998

N2 - The observation of internal transport barriers (ITBs) in which ion thermal diffusivity is reduced to a neoclassical level has been made for the first time in tokamak plasmas fueled with deuterium and tritium ions using a broad current density profile. The heating and current profiles required to obtain an ITB are similar in D-T and D-D plasmas. Central ion temperatures of 40 keV and plasma pressure gradients of 106 Pa /m were observed in a D-T plasma, leading to a fusion triple product niTiτE = 1.1021m−3 ke V s and 8.2 MW of fusion power. There is potential for further optimization as a step towards the development of efficient tokamak fusion reactors.

AB - The observation of internal transport barriers (ITBs) in which ion thermal diffusivity is reduced to a neoclassical level has been made for the first time in tokamak plasmas fueled with deuterium and tritium ions using a broad current density profile. The heating and current profiles required to obtain an ITB are similar in D-T and D-D plasmas. Central ion temperatures of 40 keV and plasma pressure gradients of 106 Pa /m were observed in a D-T plasma, leading to a fusion triple product niTiτE = 1.1021m−3 ke V s and 8.2 MW of fusion power. There is potential for further optimization as a step towards the development of efficient tokamak fusion reactors.

UR - https://www.scopus.com/pages/publications/3743141279

U2 - 10.1103/PhysRevLett.80.5544

DO - 10.1103/PhysRevLett.80.5544

M3 - Article

AN - SCOPUS:3743141279

SN - 0031-9007

VL - 80

SP - 5544

EP - 5547

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

ER -

Internal transport barriers in jet deuterium-tritium plasmas

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