Progress in LHCD

A tool for advanced regimes on ITER

A.A. Tuccillo, E. Barbato, Y.S. Bae, A. Becoulet, S. Bernabei, P. Bibet, G. Calabro, A. Cardinali, C. Castaldo, R. Cesario, M.H. Cho, S. Cirant, F. Crisanti, A. Ekedahl, L.-G. Eriksson, D. Farina, G. Giruzzi, M. Goniche, G. Granucci, S. Ide & 20 others F. Imbeaux, Seppo Karttunen, X. Litaudon, J. Mailloux, D. Mazon, F. Mirizzi, D. Moreau, S. Nowak, W. Namkung, L. Panaccione, V. Pericoli-Ridolfini, Y. Peysson, V. Petrzilka, S. Podda, Karin Rantamäki, F. Santini, A. Saveliev, M. Schneider, C. Sozzi, T. Suzuki

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)

Abstract

The recent success in coupling lower hybrid (LH) waves in high performance plasmas at JET together with the first demonstration on FTU of the coupling capability of the new passive active multijunction launcher removed major concerns on the possibility of using LH on ITER. LH exhibits the highest experimental current drive (CD) efficiency at low plasma temperature thus making it the natural candidate for off-axis CD on ITER where current profile control will help in maintaining burning performance on a long-time scale. We review recent LH results: long internal transport barrier obtained in JET with current profile sustained and controlled by LH acting under real time feedback together with first LH control of flat q-profile in a hybrid regime with Te ~ Ti. Minutes long fully non-inductive LH driven discharges on Tore Supra (TS). High CD efficiency with electron cyclotron in synergy with LH obtained in FTU and TS opening the possibility of interesting scenarii on ITER for MHD stabilization. Preliminary results of LH modelling for ITER are also reported. A brief overview of ITER LH system is reported together with some indication of new coming LH experiments, in particular KSTAR where CW klystrons at the foreseen ITER frequency of 5 GHz are being developed.
Original languageEnglish
Pages (from-to)B363 - B377
Number of pages15
JournalPlasma Physics and Controlled Fusion
Volume47
Issue number12B
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

Klystrons
Plasmas
profiles
Cyclotrons
Electric current control
klystrons
Magnetohydrodynamics
Hybrid systems
launchers
Demonstrations
cold plasmas
Stabilization
cyclotrons
Feedback
high current
indication
Electrons
stabilization
Experiments
Temperature

Keywords

  • JET
  • plasma
  • fusion energy
  • fusion reactors
  • tokamak
  • ITER
  • lower hybrid grill
  • lower hybrid waves
  • lower hybrid current drive

Cite this

Tuccillo, A. A., Barbato, E., Bae, Y. S., Becoulet, A., Bernabei, S., Bibet, P., ... Suzuki, T. (2005). Progress in LHCD: A tool for advanced regimes on ITER. Plasma Physics and Controlled Fusion, 47(12B), B363 - B377. https://doi.org/10.1088/0741-3335/47/12B/S26
Tuccillo, A.A. ; Barbato, E. ; Bae, Y.S. ; Becoulet, A. ; Bernabei, S. ; Bibet, P. ; Calabro, G. ; Cardinali, A. ; Castaldo, C. ; Cesario, R. ; Cho, M.H. ; Cirant, S. ; Crisanti, F. ; Ekedahl, A. ; Eriksson, L.-G. ; Farina, D. ; Giruzzi, G. ; Goniche, M. ; Granucci, G. ; Ide, S. ; Imbeaux, F. ; Karttunen, Seppo ; Litaudon, X. ; Mailloux, J. ; Mazon, D. ; Mirizzi, F. ; Moreau, D. ; Nowak, S. ; Namkung, W. ; Panaccione, L. ; Pericoli-Ridolfini, V. ; Peysson, Y. ; Petrzilka, V. ; Podda, S. ; Rantamäki, Karin ; Santini, F. ; Saveliev, A. ; Schneider, M. ; Sozzi, C. ; Suzuki, T. / Progress in LHCD : A tool for advanced regimes on ITER. In: Plasma Physics and Controlled Fusion. 2005 ; Vol. 47, No. 12B. pp. B363 - B377.
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title = "Progress in LHCD: A tool for advanced regimes on ITER",
abstract = "The recent success in coupling lower hybrid (LH) waves in high performance plasmas at JET together with the first demonstration on FTU of the coupling capability of the new passive active multijunction launcher removed major concerns on the possibility of using LH on ITER. LH exhibits the highest experimental current drive (CD) efficiency at low plasma temperature thus making it the natural candidate for off-axis CD on ITER where current profile control will help in maintaining burning performance on a long-time scale. We review recent LH results: long internal transport barrier obtained in JET with current profile sustained and controlled by LH acting under real time feedback together with first LH control of flat q-profile in a hybrid regime with Te ~ Ti. Minutes long fully non-inductive LH driven discharges on Tore Supra (TS). High CD efficiency with electron cyclotron in synergy with LH obtained in FTU and TS opening the possibility of interesting scenarii on ITER for MHD stabilization. Preliminary results of LH modelling for ITER are also reported. A brief overview of ITER LH system is reported together with some indication of new coming LH experiments, in particular KSTAR where CW klystrons at the foreseen ITER frequency of 5 GHz are being developed.",
keywords = "JET, plasma, fusion energy, fusion reactors, tokamak, ITER, lower hybrid grill, lower hybrid waves, lower hybrid current drive",
author = "A.A. Tuccillo and E. Barbato and Y.S. Bae and A. Becoulet and S. Bernabei and P. Bibet and G. Calabro and A. Cardinali and C. Castaldo and R. Cesario and M.H. Cho and S. Cirant and F. Crisanti and A. Ekedahl and L.-G. Eriksson and D. Farina and G. Giruzzi and M. Goniche and G. Granucci and S. Ide and F. Imbeaux and Seppo Karttunen and X. Litaudon and J. Mailloux and D. Mazon and F. Mirizzi and D. Moreau and S. Nowak and W. Namkung and L. Panaccione and V. Pericoli-Ridolfini and Y. Peysson and V. Petrzilka and S. Podda and Karin Rantam{\"a}ki and F. Santini and A. Saveliev and M. Schneider and C. Sozzi and T. Suzuki",
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Tuccillo, AA, Barbato, E, Bae, YS, Becoulet, A, Bernabei, S, Bibet, P, Calabro, G, Cardinali, A, Castaldo, C, Cesario, R, Cho, MH, Cirant, S, Crisanti, F, Ekedahl, A, Eriksson, L-G, Farina, D, Giruzzi, G, Goniche, M, Granucci, G, Ide, S, Imbeaux, F, Karttunen, S, Litaudon, X, Mailloux, J, Mazon, D, Mirizzi, F, Moreau, D, Nowak, S, Namkung, W, Panaccione, L, Pericoli-Ridolfini, V, Peysson, Y, Petrzilka, V, Podda, S, Rantamäki, K, Santini, F, Saveliev, A, Schneider, M, Sozzi, C & Suzuki, T 2005, 'Progress in LHCD: A tool for advanced regimes on ITER', Plasma Physics and Controlled Fusion, vol. 47, no. 12B, pp. B363 - B377. https://doi.org/10.1088/0741-3335/47/12B/S26

Progress in LHCD : A tool for advanced regimes on ITER. / Tuccillo, A.A.; Barbato, E.; Bae, Y.S.; Becoulet, A.; Bernabei, S.; Bibet, P.; Calabro, G.; Cardinali, A.; Castaldo, C.; Cesario, R.; Cho, M.H.; Cirant, S.; Crisanti, F.; Ekedahl, A.; Eriksson, L.-G.; Farina, D.; Giruzzi, G.; Goniche, M.; Granucci, G.; Ide, S.; Imbeaux, F.; Karttunen, Seppo; Litaudon, X.; Mailloux, J.; Mazon, D.; Mirizzi, F.; Moreau, D.; Nowak, S.; Namkung, W.; Panaccione, L.; Pericoli-Ridolfini, V.; Peysson, Y.; Petrzilka, V.; Podda, S.; Rantamäki, Karin; Santini, F.; Saveliev, A.; Schneider, M.; Sozzi, C.; Suzuki, T.

In: Plasma Physics and Controlled Fusion, Vol. 47, No. 12B, 2005, p. B363 - B377.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Progress in LHCD

T2 - A tool for advanced regimes on ITER

AU - Tuccillo, A.A.

AU - Barbato, E.

AU - Bae, Y.S.

AU - Becoulet, A.

AU - Bernabei, S.

AU - Bibet, P.

AU - Calabro, G.

AU - Cardinali, A.

AU - Castaldo, C.

AU - Cesario, R.

AU - Cho, M.H.

AU - Cirant, S.

AU - Crisanti, F.

AU - Ekedahl, A.

AU - Eriksson, L.-G.

AU - Farina, D.

AU - Giruzzi, G.

AU - Goniche, M.

AU - Granucci, G.

AU - Ide, S.

AU - Imbeaux, F.

AU - Karttunen, Seppo

AU - Litaudon, X.

AU - Mailloux, J.

AU - Mazon, D.

AU - Mirizzi, F.

AU - Moreau, D.

AU - Nowak, S.

AU - Namkung, W.

AU - Panaccione, L.

AU - Pericoli-Ridolfini, V.

AU - Peysson, Y.

AU - Petrzilka, V.

AU - Podda, S.

AU - Rantamäki, Karin

AU - Santini, F.

AU - Saveliev, A.

AU - Schneider, M.

AU - Sozzi, C.

AU - Suzuki, T.

PY - 2005

Y1 - 2005

N2 - The recent success in coupling lower hybrid (LH) waves in high performance plasmas at JET together with the first demonstration on FTU of the coupling capability of the new passive active multijunction launcher removed major concerns on the possibility of using LH on ITER. LH exhibits the highest experimental current drive (CD) efficiency at low plasma temperature thus making it the natural candidate for off-axis CD on ITER where current profile control will help in maintaining burning performance on a long-time scale. We review recent LH results: long internal transport barrier obtained in JET with current profile sustained and controlled by LH acting under real time feedback together with first LH control of flat q-profile in a hybrid regime with Te ~ Ti. Minutes long fully non-inductive LH driven discharges on Tore Supra (TS). High CD efficiency with electron cyclotron in synergy with LH obtained in FTU and TS opening the possibility of interesting scenarii on ITER for MHD stabilization. Preliminary results of LH modelling for ITER are also reported. A brief overview of ITER LH system is reported together with some indication of new coming LH experiments, in particular KSTAR where CW klystrons at the foreseen ITER frequency of 5 GHz are being developed.

AB - The recent success in coupling lower hybrid (LH) waves in high performance plasmas at JET together with the first demonstration on FTU of the coupling capability of the new passive active multijunction launcher removed major concerns on the possibility of using LH on ITER. LH exhibits the highest experimental current drive (CD) efficiency at low plasma temperature thus making it the natural candidate for off-axis CD on ITER where current profile control will help in maintaining burning performance on a long-time scale. We review recent LH results: long internal transport barrier obtained in JET with current profile sustained and controlled by LH acting under real time feedback together with first LH control of flat q-profile in a hybrid regime with Te ~ Ti. Minutes long fully non-inductive LH driven discharges on Tore Supra (TS). High CD efficiency with electron cyclotron in synergy with LH obtained in FTU and TS opening the possibility of interesting scenarii on ITER for MHD stabilization. Preliminary results of LH modelling for ITER are also reported. A brief overview of ITER LH system is reported together with some indication of new coming LH experiments, in particular KSTAR where CW klystrons at the foreseen ITER frequency of 5 GHz are being developed.

KW - JET

KW - plasma

KW - fusion energy

KW - fusion reactors

KW - tokamak

KW - ITER

KW - lower hybrid grill

KW - lower hybrid waves

KW - lower hybrid current drive

U2 - 10.1088/0741-3335/47/12B/S26

DO - 10.1088/0741-3335/47/12B/S26

M3 - Article

VL - 47

SP - B363 - B377

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 12B

ER -

Tuccillo AA, Barbato E, Bae YS, Becoulet A, Bernabei S, Bibet P et al. Progress in LHCD: A tool for advanced regimes on ITER. Plasma Physics and Controlled Fusion. 2005;47(12B):B363 - B377. https://doi.org/10.1088/0741-3335/47/12B/S26