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Dependence on plasma shape and plasma fueling for small edge-localized mode regimes in TCV and ASDEX Upgrade

  • B. Labit
  • , T. Eich
  • , G. F. Harrer
  • , E. Wolfrum
  • , M. Bernert
  • , M. G. Dunne
  • , L. Frassinetti
  • , P. Hennequin
  • , R. Maurizio
  • , A. Merle
  • , H. Meyer
  • , S. Saarelma
  • , U. Sheikh
  • , J. Adamek
  • , M. Agostini
  • , D. Aguiam
  • , R. Akers
  • , R. Albanese
  • , C. Albert
  • , E. Alessi
  • R. Ambrosino, Y. Andr be, C. Angioni, G. Apruzzese, M. Aradi, H. Arnichand, F. Auriemma, G. Avdeeva, J. M. Ayllon-Guerola, F. Bagnato, V. K. Bandaru, M. Barnes, L. Barrera-Orte, P. Bettini, R. Bilato, O. Biletskyi, P. Bilkova, W. Bin, P. Blanchard, T. Blanken, V. Bobkov, A. Bock, D. Boeyaert, K. Bogar, O. Bogar, P. Bohm, T. Bolzonella, F. Bombarda, L. Boncagni, F. Bouquey, C. Bowman, S. Brezinsek, D. Brida, D. Brunetti, J. Bucalossi, J. Buchanan, J. Buermans, H. Bufferand, S. Buller, P. Buratti, A. Burckhart, G. Calabr, L. Calacci, Y. Camenen, B. Cannas, P. Cano Megías, D. Carnevale, F. Carpanese, M. Carr, D. Carralero, L. Carraro, A. Casolari, A. Cathey, F. Causa, M. Cavedon, M. Cecconello, S. Ceccuzzi, J. Cerovsky, S. Chapman, P. Chmielewski, D. Choi, C. Cianfarani, G. Ciraolo, S. Coda, R. Coelho, L. Colas, D. Colette, L. Cordaro, F. Cordella, S. Costea, D. Coster, D. J. Cruz Zabala, G. Cseh, A. Czarnecka, I. Cziegler, O. D'Arcangelo, A. Dal Molin, P. David, G. De Carolis, H. De Oliveira, J. Decker, R. Dejarnac, R. Delogu, N. Den Harder, M. Dimitrova, F. Dolizy, J. J. Domínguez-Palacios Durán, D. Douai, A. Drenik, M. Dreval, B. Dudson, D. Dunai, B. P. Duval, R. Dux, S. Elmore, O. Embréus, B. Erds, E. Fable, M. Faitsch, A. Fanni, M. Farnik, I. Faust, J. Faustin, N. Fedorczak, F. Felici, S. Feng, X. Feng, J. Ferreira, G. Ferr, O. Février, O. Ficker, L. Figini, A. Figueiredo, A. Fil, M. Fontana, M. Francesco, C. Fuchs, S. Futatani, L. Gabellieri, D. Gadariya, D. Gahle, D. Galassi, K. Gałązka, J. Galdon-Quiroga, S. Galeani, D. Gallart, A. Gallo, C. Galperti, S. Garavaglia, J. Garcia, J. Garcia-Lopez, M. Garcia-Mu oz, L. Garzotti, J. Gath, B. Geiger, L. Giacomelli, L. Giannone, S. Gibson, L. Gil, E. Giovannozzi, G. Giruzzi, M. Gobbin, J. Gonzalez-Martin, T. P. Goodman, G. Gorini, M. Gospodarczyk, G. Granucci, D. Grekov, G. Grenfell, M. Griener, M. Groth, O. Grover, M. Gruca, A. Gude, L. Guimarais, T. Gyergyek, P. Hacek, A. Hakola, C. Ham, T. Happel, J. Harrison, A. Havranek, J. Hawke, S. Henderson, L. Hesslow, F. Hitzler, B. Hnat, J. Hobirk, M. Hoelzl, D. Hogeweij, C. Hopf, M. Hoppe, J. Horacek, M. Hron, Z. Huang, A. Iantchenko, D. Iglesias, V. Igochine, P. Innocente, C. Ionita-Schrittwieser, H. Isliker, I. Ivanova-Stanik, A. Jacobsen, M. Jakubowski, F. Janky, A. Jardin, F. Jaulmes, T. Jensen, T. Jonsson, A. Kallenbach, A. Kappatou, A. Karpushov, S. Kasilov, Y. Kazakov, P. V. Kazantzidis, D. Keeling, M. Kelemen, A. Kendl, W. Kernbichler, A. Kirk, G. Kocsis, M. Komm, M. Kong, V. Korovin, M. Koubiti, J. Kovacic, N. Krawczyk, K. Krieger, L. Kripner, A. Křivská, O. Kudlacek, Y. Kulyk, T. Kurki-Suonio, R. Kwiatkowski, F. Laggner, L. Laguardia, A. Lahtinen, P. Lang, J. Likonen, B. Lipschultz, F. Liu, R. Lombroni, R. Lorenzini, V. P. Loschiavo, T. Lunt, E. MacUsova, J. Madsen, R. Maggiora, B. Maljaars, P. Manas, P. Mantica, M. J. Mantsinen, P. Manz, M. Maraschek, V. Marchenko, C. Marchetto, A. Mariani, C. Marini, T. Markovic, L. Marrelli, P. Martin, J. R. Martín Solís, A. Martitsch, S. Mastrostefano, F. Matos, G. Matthews, M. L. Mayoral, D. Mazon, C. Mazzotta, P. Mc Carthy, K. McClements, R. McDermott, B. McMillan, C. Meineri, V. Menkovski, D. Meshcheriakov, M. Messmer, D. Micheletti, D. Milanesio, F. Militello, I. G. Miron, J. Mlynar, V. Moiseenko, P. A. Molina Cabrera, J. Morales, J. M. Moret, A. Moro, D. Moulton, F. Nabais, V. Naulin, D. Naydenkova, R. D. Nem, F. Nespoli, S. Newton, A. H. Nielsen, S. K. Nielsen, V. Nikolaeva, M. Nocente, S. Nowak, M. Oberkofler, R. Ochoukov, P. Ollus, J. Olsen, J. Omotani, J. Ongena, F. Orain, F. P. Orsitto, R. Paccagnella, A. Palha, L. Panaccione, R. Panek, M. Panjan, G. Papp, I. Paradela Perez, F. Parra, M. Passeri, A. Pau, G. Pautasso, R. Pavlichenko, A. Perek, V. Pericoli Radolfini, F. Pesamosca, M. Peterka, V. Petrzilka, V. Piergotti, L. Pigatto, P. Piovesan, C. Piron, L. Piron, V. Plyusnin, G. Pokol, E. Poli, P. Pölöskei, T. Popov, Z. Popovic, G. Pór, L. Porte, G. Pucella, M. E. Puiatti, T. Pütterich, M. Rabinski, J. Juul Rasmussen, J. Rasmussen, G. A. Rattá, S. Ratynskaia, T. Ravensbergen, D. Réfy, M. Reich, H. Reimerdes, F. Reimold, D. Reiser, C. Reux, S. Reznik, D. Ricci, N. Rispoli, J. F. Rivero-Rodriguez, G. Rocchi, M. Rodriguez-Ramos, A. Romano, J. Rosato, G. Rubinacci, Giulio Rubino, D. A. Ryan, M. Salewski, A. Salmi, D. Samaddar, L. Sanchis-Sanchez, J. Santos, K. Särkimäki, M. Sassano, O. Sauter, R. Scannell, M. Scheffer, B. S. Schneider, P. Schneider, R. Schrittwieser, M. Schubert, J. Seidl, E. Seliunin, S. Sharapov, R. R. Sheeba, G. Sias, B. Sieglin, C. Silva, S. Sipilä, S. Smith, A. Snicker, E. R. Solano, S. K. Hansen, C. Soria-Hoyo, E. Sorokovoy, C. Sozzi, A. Sperduti, G. Spizzo, M. Spolaore, M. Stejner, L. Stipani, J. Stober, P. Strand, H. Sun, W. Suttrop, D. Sytnykov, T. Szepesi, B. Tál, T. Tala, G. Tardini, M. Tardocchi, A. Teplukhina, D. Terranova, D. Testa, C. Theiler, E. Thorén, A. Thornton, B. Tilia, P. Tolias, M. Tomes, M. Toscano-Jimenez, C. Tsironis, C. Tsui, O. Tudisco, J. Urban, M. Valisa, M. Vallar, P. Vallejos Olivares, M. Valovic, D. Van Vugt, B. Vanovac, J. Varje, J. Varju, S. Varoutis, S. Vartanian, O. Vasilovici, J. Vega, G. Verdoolaege, K. Verhaegh, L. Vermare, N. Vianello, J. Vicente, E. Viezzer, F. Villone, I. Voitsekhovitch, D. Voltolina, P. Vondracek, N. M.T. Vu, N. Walkden, T. Wauters, M. Weiland, V. Weinzettl, M. Wensing, S. Wiesen, M. Wiesenberger, G. Wilkie, M. Willensdorfer, M. Wischmeier, K. Wu, L. Xiang, R. Zagorski, D. Zaloga, P. Zanca, R. Zaplotnik, J. Zebrowski, W. Zhang, A. Zisis, S. Zoletnik, M. Zuin
  • Ecole Polytechnique Federale de Lausanne
  • Max-Planck-Institut für Plasmaphysik
  • Vienna University of Technology
  • KTH Royal Institute of Technology
  • Ecole Polytechnique
  • Culham Centre for Fusion Energy
  • Institute of Plasma Physics, Academy of Sciences of the Czech Republic
  • Consorzio Rfx
  • Instituto Superior Técnico
  • University of Napoli 'Federico II'
  • Technische Universität Graz
  • Istituto di Fisica del Plasma Piero Caldirola
  • University of Napoli Parthenope
  • ENEA Centro Ricerche Frascati
  • Technical University of Denmark
  • University of Seville
  • University of Oxford
  • EUROfusion PMU
  • National Science Center Kharkiv Institute of Physics and Technology
  • Eindhoven University of Technology
  • Forschungszentrum Jülich GmbH
  • Commissariat à l'Énergie Atomique (CEA)
  • University of York
  • Chalmers University of Technology
  • University of Tuscia
  • University of Rome Tor Vergata
  • Université Aix Marseille
  • University of Cagliari
  • Laboratorio Nacional de Fusión
  • Uppsala University
  • University of Warwick
  • Institute of Plasma Physics and Laser Microfusion
  • Universitat Innsbruck
  • Wigner Research Centre for Physics
  • Budapest University of Technology and Economics
  • Durham University
  • Universitat Politècnica de Catalunya (UPC)
  • University of Strathclyde
  • Barcelona Supercomputer Centre
  • University of Milano-Bicocca
  • Karlsruhe Institute of Technology
  • Aalto University
  • Jozef Stefan Institute
  • VTT Technical Research Centre of Finland
  • FOM Institute DIFFER
  • Aristotle University of Thessaloniki
  • National Technical University of Athens
  • Narodowe Centrum Badań Jadrowych
  • University of Helsinki
  • Université de Nice Sophia Antipolis
  • Politecnico di Torino
  • ICREA
  • Institute for Nuclear Research
  • University of Cassino
  • University College Cork
  • National Institute for Laser, Plasma and Radiation Physics
  • St. Kliment Ohridski University
  • University of Ghent

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

Within the EUROfusion MST1 work package, a series of experiments has been conducted on AUG and TCV devices to disentangle the role of plasma fueling and plasma shape for the onset of small ELM regimes. On both devices, small ELM regimes with high confinement are achieved if and only if two conditions are fulfilled at the same time. Firstly, the plasma density at the separatrix must be large enough (ne,sep/nG ∼ 0.3), leading to a pressure profile flattening at the separatrix, which stabilizes type-I ELMs. Secondly, the magnetic configuration has to be close to a double null (DN), leading to a reduction of the magnetic shear in the extreme vicinity of the separatrix. As a consequence, its stabilizing effect on ballooning modes is weakened.

Original languageEnglish
Article number086020
JournalNuclear Fusion
Volume59
Issue number8
DOIs
Publication statusPublished - 26 Jun 2019

Keywords

  • H-mode
  • ballooning modes
  • grassy ELMs
  • plasma triangularity
  • separatrix density
  • type-II ELMs

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