JET quasistationary internal-transport-barrier operation with active control of the pressure profile

F. Crisanti, X. Litaudon, J. Mailloux, D. Mazon, E. Barbato, Y. Baranov, A. Bécoulet, M. Bécoulet, C.D. Challis, G.D. Conway, R. Dux, L.-G. Eriksson, B. Esposito, D. Frigione, P. Hennequin, C. Giroud, N. Hawkes, G. Huysmans, F. Imbeaux, E. JoffrinP. Lomas, Ph. Lotte, P. Maget, M. Mantsinen, D. Moreau, F. Rimini, M. Riva, Y. Sarazin, G. Tresset, A.A. Tuccillo, K.-D. Zastrow

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Abstract

Quasistationary operation was achieved in discharges where a well developed internal-transport barrier (ITB) was present both on ion and electron species, showing, for the first time, that some key features of the concept of advanced tokamak can be viable in a steady state reactor perspective. This was possible by using the lower hybrid current drive (LHCD) power in order to achieve a full current drive scenario and to "freeze" the current density profile. The implementation, for the first time, of an active feedback on the electron temperature gradient allowed a successful direct control of the requested preprogrammed quantities.
Original languageEnglish
Article number145004
Pages (from-to)145004/1 - 145004/4
JournalPhysical Review Letters
Volume88
Issue number14
DOIs
Publication statusPublished - 8 Apr 2002
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Crisanti, F., Litaudon, X., Mailloux, J., Mazon, D., Barbato, E., Baranov, Y., ... Zastrow, K-D. (2002). JET quasistationary internal-transport-barrier operation with active control of the pressure profile. Physical Review Letters, 88(14), 145004/1 - 145004/4. [145004]. https://doi.org/10.1103/PhysRevLett.88.145004