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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
  • ENAC-IIC-GEL
  • Max-Planck-Institut für Plasmaphysik
  • Vienna University of Technology
  • KTH Royal Institute of Technology
  • Culham Centre for Fusion Energy
  • Institute of Plasma Physics AS CR
  • Consorzio Rfx
  • Instituto Superior Técnico
  • University of Naples Federico II
  • Graz University of Technology
  • IFP-CNR
  • Università di Napoli Parthenope
  • ENEA Centro Ricerche Frascati
  • Technical University of Denmark
  • University of Seville
  • University of Oxford
  • EUROfusion PMU
  • Kharkov Institute of Physics and Technology
  • Technical University of Eindhoven
  • Research Centre Julich
  • CEA Cadarache
  • University of York
  • Koninklijke Militaire School - Ecole Royale Militaire
  • Chalmers University of Technology
  • Tuscia University
  • University of Rome “Tor Vergata”
  • Aix-Marseille Université
  • Universitá di Cagliari
  • Laboratorio Nacional de Fusión
  • Uppsala University
  • University of Warwick
  • Soltan Institute for Nuclear Studies
  • University of Innsbruck
  • Wigner Research Centre for Physics
  • Budapest University of Technology and Economics
  • Durham University
  • Universidad Politecnica de Catalunia
  • University of Strathclyde
  • Earth Sciences
  • University of Milano-Bicocca
  • Institute of Meteorology and Climate Research
  • Aalto University
  • Department of Biochemistry and Molecular and Structural Biology
  • VTT Technical Research Centre of Finland Ltd
  • FOM Institute DIFFER 'Dutch Institute for Fundamental Energy Research'
  • Aristotle University of Thessaloniki
  • National Technical University of Athens
  • National Centre for Nuclear Research
  • University of Helsinki
  • Université Côte D’Azur
  • Politecnico di Torino
  • Pompeu Fabra University (UPF)
  • Institute for Organic Chemistry of the National Academy of Sciences of Ukraine
  • Università di Cassino
  • University College Cork
  • Plasma and Radiation Physics (INFLPR)
  • Sofia University St. Kliment Ohridski
  • Ghent University

Research output: Contribution to journalArticlepeer-review

58 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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