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. TubbingM. R. Wade, D. J. Ward

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

113 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

Access to Document

10.1103/PhysRevLett.80.5544

Cite this

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 - http://www.scopus.com/inward/record.url?scp=3743141279&partnerID=8YFLogxK

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this