Overview of the TCV tokamak program: scientific progress and facility upgrades

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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  • Author: Coda, S.

  • Author: Ahn, J.

  • Author: Albanese, R.

  • Author: Alberti, S.

  • Author: Alessi, E.

  • Author: Allan, Jonathan S.

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  • Author: Bin Najib, Waqas

  • Author: Blanchard, P.

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  • Author: Bolzonella, T.

  • Author: Bouquey, F.

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  • Author: Fedorczak, N.

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  • Author: Fietz, S.

  • Author: Fontana, M.

  • Author: Frassinetti, L

  • Author: Furno, I.

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  • Author: Gallo, Antonio

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  • Author: Goodman, T.P.

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  • Author: Gospodarczyk, M.

  • Author: Granucci, G.

  • Author: Graves, J.P.

  • Author: Guirlet, R.

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  • Author: Ham, C.

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  • Author: Hogeweij, G.M.D.

  • Author: Hogge, J.-Ph

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  • Author: Horáček, J.

  • Author: Huang, Zhiwei

  • Author: Igochine, V.

  • Author: Innocente, P.

  • Author: Ionita-Schrittwieser, C.

  • Author: Isliker, H.

  • Author: Jacquier, R.

  • Author: Jardin, A.

  • Author: Kamleitner, J.

  • Author: Karpushov, A.

  • Author: Keeling, D.L.

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  • Author: Koubiti, M.

  • Author: Kovacic, J.

  • Author: Krämer-Flecken, A.

  • Author: Krawczyk, N.

  • Author: Kudlacek, O.

  • Author: Labit, B.

  • Author: Lazzaro, Enzo

  • Author: Le, H.B.

  • Author: Lipschultz, B.

  • Author: Llobet, X.

  • Author: Lomanowski, B.

  • Author: Loschiavo, V.P.

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  • Author: Maljaars, E.

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  • Author: Maraschek, M.

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  • Author: Martin, Y.

  • Author: Mastrostefano, S.

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  • Author: Molina Cabrera, P. A.

  • Author: Moret, J.-M.

  • Author: Del Moro, A.

  • Author: Moulton, D.

  • Author: Naulin, Volker

    Plasma Physics and Fusion Energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Nespoli, F.

  • Author: Nielsen, Anders Henry

    Plasma Physics and Fusion Energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Nocente, M.

  • Author: Nouailletas, R.

  • Author: Nowak, S.

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  • Author: Porte, L.

  • Author: Preynas, M.

  • Author: Ramogida, G.

  • Author: Rapson, C.

  • Author: Rasmussen, Jens Juul

    Plasma Physics and Fusion Energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Reich, M.

  • Author: Reimerdes, H.

  • Author: Reux, C.

  • Author: Ricci, P.

  • Author: Rittich, D.

  • Author: Riva, F.

  • Author: Robinson, T.

  • Author: Saarelma, S.

  • Author: Saint-Laurent, F.

  • Author: Sauter, O.

  • Author: Scannell, R.

  • Author: Schlatter, C.

  • Author: Schneider, B.

  • Author: Schneider, P.

  • Author: Schrittwieser, R.

  • Author: Sciortino, Natasha F.

  • Author: Sertoli, M.

  • Author: Sheikh, U.

  • Author: Sieglin, B.

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  • Author: Stoltzfus-Dueck, T.

  • Author: Tamain, P.

  • Author: Teplukhina, A.

  • Author: Testa, D.

  • Author: Theiler, C.

  • Author: Thornton, A.

  • Author: Tophøj, Laust Emil Hjerrild

    Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Tran, M. Q.

  • Author: Tsironis, C.

  • Author: Tsui, C.

  • Author: Uccello, A.

  • Author: Vartanian, S.

  • Author: Verdoolaege, G.

  • Author: Verhaegh, K.

  • Author: Vermare, L.

  • Author: Vianello, N.

  • Author: Vijvers, W.A.J.

  • Author: Vlahos, L.

  • Author: Vu, N.M.T.

  • Author: Walkden, N. R.

  • Author: Wauters, T.

  • Author: Weisen, H.

  • Author: Wischmeier, M.

  • Author: Zestanakis, P.

  • Author: Zuin, Matteo

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The TCV tokamak is augmenting its unique historical capabilities (strong shaping, strong electron heating) with ion heating, additional electron heating compatible with high densities, and variable divertor geometry, in a multifaceted upgrade program designed to broaden its operational range without sacrificing its fundamental flexibility. The TCV program is rooted in a three-pronged approach aimed at ITER support, explorations towards DEMO, and fundamental research. A 1 MW, tangential neutral beam injector (NBI) was recently installed and promptly extended the TCV parameter range, with record ion temperatures and toroidal rotation velocities and measurable neutral-beam current drive. ITER-relevant scenario development has received particular attention, with strategies aimed at maximizing performance through optimized discharge trajectories to avoid MHD instabilities, such as peeling-ballooning and neoclassical tearing modes. Experiments on exhaust physics have focused particularly on detachment, a necessary step to a DEMO reactor, in a comprehensive set of conventional and advanced divertor concepts. The specific theoretical prediction of an enhanced radiation region between the two X-points in the low-field-side snowflake-minus configuration was experimentally confirmed. Fundamental investigations of the power decay length in the scrape-off layer (SOL) are progressing rapidly, again in widely varying configurations and in both D and He plasmas; in particular, the double decay length in L-mode limited plasmas was found to be replaced by a single length at high SOL resistivity. Experiments on disruption mitigation by massive gas injection and electron-cyclotron resonance heating (ECRH) have begun in earnest, in parallel with studies of runaway electron generation and control, in both stable and disruptive conditions; a quiescent runaway beam carrying the entire electrical current appears to develop in some cases. Developments in plasma control have benefited from progress in individual controller design and have evolved steadily towards controller integration, mostly within an environment supervised by a tokamak profile control simulator. TCV has demonstrated effective wall conditioning with ECRH in He in support of the preparations for JT-60SA operation.
Original languageEnglish
Article number102011
JournalNuclear Fusion
Volume57
Issue number10
Number of pages12
ISSN0029-5515
DOIs
Publication statusPublished - 2017
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • TCV, Tokamak, Overview

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