Towards fully non-inductive current drive operation in JET

X. Litaudon; F. Crisanti; B. Alper; J.F. Artaud; Y.F. Baranov; E. Barbato; V. Basiuk; A. Bécoulet; M. Bécoulet; C. Castaldo; C.D. Challis; G.D. Conway; R. Dux; L.G. Eriksson; B. Esposito; C. Fourment; D. Frigione; X. Garbet; C. Giroud; N.C. Hawkes; P. Hennequin; G.T.A. Huysmans; F. Imbeaux; E. Joffrin; P.J. Lomas; P. Lotte; P. Maget; M. Mantsinen; B.J. Mailloux; D. Mazon; F.P. Milani; D.J.J.S.M. Moreau; V. Parail; E. Pohn; F.G. Rimini; Y. Sarazin; G. Tresset; K.D. Zastrow; M. Zerbini; contributors to the EFDA-JET Workprogramme

doi:10.1088/0741-3335/44/7/302

Towards fully non-inductive current drive operation in JET

X. Litaudon, F. Crisanti, B. Alper, J.F. Artaud, Y.F. Baranov, E. Barbato, V. Basiuk, A. Bécoulet, M. Bécoulet, C. Castaldo, C.D. Challis, G.D. Conway, R. Dux, L.G. Eriksson, B. Esposito, C. Fourment, D. Frigione, X. Garbet, C. Giroud, N.C. HawkesP. Hennequin, G.T.A. Huysmans, F. Imbeaux, E. Joffrin, P.J. Lomas, P. Lotte, P. Maget, M. Mantsinen, B.J. Mailloux, D. Mazon, F.P. Milani, D.J.J.S.M. Moreau, V. Parail, E. Pohn, F.G. Rimini, Y. Sarazin, G. Tresset, K.D. Zastrow, M. Zerbini, contributors to the EFDA-JET Workprogramme

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

80 Citations (Scopus)

Abstract

Quasi-steady operation has been achieved at JET in the high-confinement regime with internal transport barriers (ITBs). The ITB has been maintained up to 11 s. This duration, much larger than the energy confinement time, is already approaching a current resistive time. The high-performance phase is limited only by plant constraints. The radial profiles of the thermal electron and ion pressures have steep gradients typically at mid-plasma radius. A large fraction of non-inductive current (above 80%) is sustained throughout the high-performance phase with a poloidal beta exceeding unity. The safety factor profile plays an important role in sustaining the ITB characteristics. In this regime where the self-generated bootstrap current (up to 1.0 MA) represents 50% of the total current, the resistive evolution of the non-monotonic q-profile is slowed down by using off-axis lower-hybrid current drive.

Original language	English
Pages (from-to)	1057-1086
Journal	Plasma Physics and Controlled Fusion
Volume	44
Issue number	7
DOIs	https://doi.org/10.1088/0741-3335/44/7/302
Publication status	Published - 1 Jul 2002
Externally published	Yes

Access to Document

10.1088/0741-3335/44/7/302

http://adsabs.harvard.edu/abs/2002PPCF...44.1057L

Cite this

Litaudon, X., Crisanti, F., Alper, B., Artaud, J. F., Baranov, Y. F., Barbato, E., Basiuk, V., Bécoulet, A., Bécoulet, M., Castaldo, C., Challis, C. D., Conway, G. D., Dux, R., Eriksson, L. G., Esposito, B., Fourment, C., Frigione, D., Garbet, X., Giroud, C., ... EFDA-JET Workprogramme, C. T. T. (2002). Towards fully non-inductive current drive operation in JET. Plasma Physics and Controlled Fusion, 44(7), 1057-1086. https://doi.org/10.1088/0741-3335/44/7/302

@article{07601f7bc5d34476a3dba4f27bae9a04,

title = "Towards fully non-inductive current drive operation in JET",

abstract = "Quasi-steady operation has been achieved at JET in the high-confinement regime with internal transport barriers (ITBs). The ITB has been maintained up to 11 s. This duration, much larger than the energy confinement time, is already approaching a current resistive time. The high-performance phase is limited only by plant constraints. The radial profiles of the thermal electron and ion pressures have steep gradients typically at mid-plasma radius. A large fraction of non-inductive current (above 80%) is sustained throughout the high-performance phase with a poloidal beta exceeding unity. The safety factor profile plays an important role in sustaining the ITB characteristics. In this regime where the self-generated bootstrap current (up to 1.0 MA) represents 50% of the total current, the resistive evolution of the non-monotonic q-profile is slowed down by using off-axis lower-hybrid current drive.",

author = "X. Litaudon and F. Crisanti and B. Alper and J.F. Artaud and Y.F. Baranov and E. Barbato and V. Basiuk and A. B{\'e}coulet and M. B{\'e}coulet and C. Castaldo and C.D. Challis and G.D. Conway and R. Dux and L.G. Eriksson and B. Esposito and C. Fourment and D. Frigione and X. Garbet and C. Giroud and N.C. Hawkes and P. Hennequin and G.T.A. Huysmans and F. Imbeaux and E. Joffrin and P.J. Lomas and P. Lotte and P. Maget and M. Mantsinen and B.J. Mailloux and D. Mazon and F.P. Milani and D.J.J.S.M. Moreau and V. Parail and E. Pohn and F.G. Rimini and Y. Sarazin and G. Tresset and K.D. Zastrow and M. Zerbini and {EFDA-JET Workprogramme}, {contributors to the}",

year = "2002",

month = jul,

day = "1",

doi = "10.1088/0741-3335/44/7/302",

language = "English",

volume = "44",

pages = "1057--1086",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "Institute of Physics",

number = "7",

}

Litaudon, X, Crisanti, F, Alper, B, Artaud, JF, Baranov, YF, Barbato, E, Basiuk, V, Bécoulet, A, Bécoulet, M, Castaldo, C, Challis, CD, Conway, GD, Dux, R, Eriksson, LG, Esposito, B, Fourment, C, Frigione, D, Garbet, X, Giroud, C, Hawkes, NC, Hennequin, P, Huysmans, GTA, Imbeaux, F, Joffrin, E, Lomas, PJ, Lotte, P, Maget, P, Mantsinen, M, Mailloux, BJ, Mazon, D, Milani, FP, Moreau, DJJSM, Parail, V, Pohn, E, Rimini, FG, Sarazin, Y, Tresset, G, Zastrow, KD, Zerbini, M & EFDA-JET Workprogramme, CTT 2002, 'Towards fully non-inductive current drive operation in JET', Plasma Physics and Controlled Fusion, vol. 44, no. 7, pp. 1057-1086. https://doi.org/10.1088/0741-3335/44/7/302

TY - JOUR

T1 - Towards fully non-inductive current drive operation in JET

AU - Litaudon, X.

AU - Crisanti, F.

AU - Alper, B.

AU - Artaud, J.F.

AU - Baranov, Y.F.

AU - Barbato, E.

AU - Basiuk, V.

AU - Bécoulet, A.

AU - Bécoulet, M.

AU - Castaldo, C.

AU - Challis, C.D.

AU - Conway, G.D.

AU - Dux, R.

AU - Eriksson, L.G.

AU - Esposito, B.

AU - Fourment, C.

AU - Frigione, D.

AU - Garbet, X.

AU - Giroud, C.

AU - Hawkes, N.C.

AU - Hennequin, P.

AU - Huysmans, G.T.A.

AU - Imbeaux, F.

AU - Joffrin, E.

AU - Lomas, P.J.

AU - Lotte, P.

AU - Maget, P.

AU - Mantsinen, M.

AU - Mailloux, B.J.

AU - Mazon, D.

AU - Milani, F.P.

AU - Moreau, D.J.J.S.M.

AU - Parail, V.

AU - Pohn, E.

AU - Rimini, F.G.

AU - Sarazin, Y.

AU - Tresset, G.

AU - Zastrow, K.D.

AU - Zerbini, M.

AU - EFDA-JET Workprogramme, contributors to the

PY - 2002/7/1

Y1 - 2002/7/1

N2 - Quasi-steady operation has been achieved at JET in the high-confinement regime with internal transport barriers (ITBs). The ITB has been maintained up to 11 s. This duration, much larger than the energy confinement time, is already approaching a current resistive time. The high-performance phase is limited only by plant constraints. The radial profiles of the thermal electron and ion pressures have steep gradients typically at mid-plasma radius. A large fraction of non-inductive current (above 80%) is sustained throughout the high-performance phase with a poloidal beta exceeding unity. The safety factor profile plays an important role in sustaining the ITB characteristics. In this regime where the self-generated bootstrap current (up to 1.0 MA) represents 50% of the total current, the resistive evolution of the non-monotonic q-profile is slowed down by using off-axis lower-hybrid current drive.

AB - Quasi-steady operation has been achieved at JET in the high-confinement regime with internal transport barriers (ITBs). The ITB has been maintained up to 11 s. This duration, much larger than the energy confinement time, is already approaching a current resistive time. The high-performance phase is limited only by plant constraints. The radial profiles of the thermal electron and ion pressures have steep gradients typically at mid-plasma radius. A large fraction of non-inductive current (above 80%) is sustained throughout the high-performance phase with a poloidal beta exceeding unity. The safety factor profile plays an important role in sustaining the ITB characteristics. In this regime where the self-generated bootstrap current (up to 1.0 MA) represents 50% of the total current, the resistive evolution of the non-monotonic q-profile is slowed down by using off-axis lower-hybrid current drive.

U2 - 10.1088/0741-3335/44/7/302

DO - 10.1088/0741-3335/44/7/302

M3 - Article

SN - 0741-3335

VL - 44

SP - 1057

EP - 1086

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 7

ER -

Towards fully non-inductive current drive operation in JET

Abstract

Access to Document

Fingerprint

Cite this