Contribution of Tore Supra in preparation of ITER

B. Saoutic 1 N. Dumas 1 Rémi Dumont 1 A. Durocher 2 F. X. Duthoit A. Ekedahl 1 D. Elbeze M. El Khaldi 3 F. Escourbiac F. Faisse 1 G. Falchetto M. Farge 4 J. L. Farjon M. Faury Nicolas Fedorczak 1 C. Fenzi-Bonizec M. Firdaouss 1 Y. Frauel J. Garcia 5 J. L. Gardarein 6 L. Gargiulo P. Garibaldi 1 E. Gauthier 7 O. Gaye A. Geraud M. Geynet Philippe Ghendrih 1 I. Giacalone S. Gibert C. Gil 1 G. Giruzzi 8 M. Goniche 1 Virginie Grandgirard 1 C. Grisolia 9, 10 G. Gros A. Grosman R. Guigon D. Guilhem 1 B. Guillerminet 1 R. Guirlet 9 J. Gunn 1 O. Gurcan S. Hacquin 1 J. C. Hatchressian P. Hennequin 11 C. Hernandez 1 P. Hertout 1 S. Heuraux 12 J. Hillairet 1 G. T. Hoang 1 C. Honoré 11 M. Houry 13 T. Hutter P. Huynh 14 G. Huysmans 15 Frédéric Imbeaux E. Joffrin 16 J. Johner L. Jourd'Heuil Y. S. Katharria D. Keller S. H. Kim M. Kocan 1 M. Kubic 1 B. Lacroix 17 V. Lamaison Guillaume Latu 1 Y. Lausenaz 18 C. Laviron 19 F. Leroux 20 L. Letellier 21, 22 M. Lipa 8 X. Litaudon 1 T. Loarer P. Lotte 9 Sophie Madeleine P. Magaud 8 P. Maget 8 R. Magne 1 L. Manenc Yannick Marandet 23 G. Marbach 24 J. L. Marechal L. Mar Si C. Martin 25 G. Martin 2 V. Martin A. Martinez J. P. Martins 26 R. Masset D. Mazon 8, 1 N. Mellet 23 L. Mercadier 27 Antoine Merle 28 D. Meshcheriakov O. Meyer L. Million M. Missirlian 1 P. Mollard 1 V. Moncada P. Monier-Garbet D. Moreau 29 P. Moreau 30, 31, 32 L. Morini M. Nannini 16 M. Naiim Habib Eric Nardon H. Nehme C. Nguyen S. Nicollet R. Nouilletas T. Ohsako M. Ottaviani 8 S. Pamela H. Parrat P. Pastor 1 A. L. Pecquet B. Pégourié 1 Y. Peysson 33 I. Porchy C. Portafaix 1 M. Preynas 1 M. Prou 1 J. M. Raharijaona N. Ravenel C. Reux 11 Pascal Reynaud 34 M. Richou 1 H. Roche 35 P. Roubin 23 R. Sabot 36 F. Saint-Laurent S. Salasca F. Samaille 1 A. Santagiustina Y. Sarazin A. Semerok 10 J. Schlosser M. Schneider 37, 38 M. Schubert F. Schwander 39 J. L. Segui G. Selig P. Sharma Jacqueline Signoret A. Simonin 40 S. Song E. Sonnendruker F. Sourbier 41 P. Spuig Patrick Tamain 1 M. Tena 16 J. M. Theis D. Thouvenin A. Torre J. M. Travere E. Tsitrone 1 J. C. Vallet 42 E. Plas A. Vatry 27, 9 J. M. Verger L. Vermare 8, 11 F. Villecroze D. Villegas R. Volpe K. Vulliez J. Wagrez T. Wauters 43 L. Zani 16 D. Zarzoso X. L. Zou J. Abiteboul 1 L. Allegretti 44 S. Allfrey 1 J. M. Ane Thierry Aniel A. Argouarch J. F. Artaud 16 M. H. Aumenier S. Balme 45 Vincent Basiuk O. Baulaigue 1 P. Bayetti A. Bécoulet 1 M. Becoulet M. S. Benkadda F. Benoit G. Berger-By 1 J. M. Bernard B. Bertrand P. Beyer 46 A. Bigand J. Blum 47 D. Boilson G. Bonhomme 48 H. Bottollier-Curtet C. Bouchand F. Bouquey C. Bourdelle 1 S. Bourmaud C. Brault 49 S. Bremond C. Brosset 9 J. Bucalossi 1 Y. Buravand P. Cara V. Catherine-Dumont A. Casati 1 M. Chantant M. Chatelier 50 G. Chevet D. Ciazynski 1 G. Ciraolo 1 F. Clairet 1 M. Coatanea-Gouachet L. Colas L. Commin E. Corbel 1 Y. Corre 1 X. Courtois 51 R. Dachicourt M. Dapena Febrer M. Davi Joanny R. Daviot H. de Esch J. Decker 1 P. Decool 1 P. Delaporte 27 E. Delchambre E. Delmas L. Delpech 1 C. Desgranges 52 P. Devynck 16 T. Dittmar 1 L. Doceul D. Douai H. Dougnac J. L. Duchateau B. Dugué 53
3 Dept. Accelerateurs - XFEL
LAL - Laboratoire de l'Accélérateur Linéaire
10 LILM - Laboratoire d'Interaction Laser Matière
DPC - Département de Physico-Chimie : DEN/DPC/SCP/LILM
51 Catalyse par les métaux
IC2MP - Institut de Chimie des Milieux et Matériaux de Poitiers
52 SCP - Service de Chimie Physique
DPC - Département de Physico-Chimie : DEN/DPC/SCP
Abstract : Tore Supra routinely addresses the physics and technology of very long-duration plasma discharges, thus bringing precious information on critical issues of long pulse operation of ITER. A new ITER relevant lower hybrid current drive (LHCD) launcher has allowed coupling to the plasma a power level of 2.7 MW for 78 s, corresponding to a power density close to the design value foreseen for an ITER LHCD system. In accordance with the expectations, long distance (10 cm) power coupling has been obtained. Successive stationary states of the plasma current pro le have been controlled in real-time featuring (i) control of sawteeth with varying plasma parameters, (ii) obtaining and sustaining a `hot core' plasma regime, (iii) recovery from a voluntarily triggered deleterious magnetohydrodynamic regime. The scrape-off layer (SOL) parameters and power deposition have been documented during L-mode ramp-up phase, a crucial point for ITER before the X-point formation. Disruption mitigation studies have been conducted with massive gas injection, evidencing the difference between He and Ar and the possible role of the q = 2 surface in limiting the gas penetration. ICRF assisted wall conditioning in the presence of magnetic eld has been investigated, culminating in the demonstration that this conditioning scheme allows one to recover normal operation after disruptions. The effect of the magnetic eld ripple on the intrinsic plasma rotation has been studied, showing the competition between turbulent transport processes and ripple toroidal friction. During dedicated dimensionless experiments, the effect of varying the collisionality on turbulence wavenumber spectra has been documented, giving new insight into the turbulence mechanism. Turbulence measurements have also allowed quantitatively comparing experimental results with predictions by 5D gyrokinetic codes: numerical results simultaneously match the magnitude of effective heat diffusivity, rms values of density uctuations and wavenumber spectra. A clear correlation between electron temperature gradient and impurity transport in the very core of the plasma has been observed, strongly suggesting the existence of a threshold above which transport is dominated by turbulent electron modes. Dynamics of edge turbulent uctuations has been studied by correlating data from fast imaging cameras and Langmuir probes, yielding a coherent picture of transport processes involved in the SOL.
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B. Saoutic, N. Dumas, Rémi Dumont, A. Durocher, F. X. Duthoit, et al.. Contribution of Tore Supra in preparation of ITER. Nuclear Fusion, IOP Publishing, 2011, 51 (9, SI), ⟨10.1088/0029-5515/51/9/094014⟩. ⟨hal-01460107⟩

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