Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-15099
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Main Title: Major results from the first plasma campaign of the Wendelstein 7-X stellarator
Author(s): Wolf, R.C.
Ali, A.
Alonso, A.
Baldzuhn, J.
Beidler, C.
Beurskens, M.
Biedermann, C.
Bosch, Hans-Stephan
Bozhenkov, S.
Brakel, R.
Dinklage, A.
Ciupiński, Ł.
Claps, G.
Cole, M.
Cole, M.J.
Cordella, F.
Cseh, G.
Czarnecka, A.
Czermak, A.
Czerski, K.
Czerwinski, M.
Feng, Y.
Czymek, G.
da Molin, A.
da Silva, A.
Dammertz, G.
Danielson, J.
de la Pena, A.
Degenkolbe, S.
Denner, P.
Dhard, D.P.
Dostal, M.
Fuchert, G.
Drevlak, M.
Drewelow, P.
Drews, Ph.
Dudek, A.
Dundulis, G.
Durodie, F.
van Eeten, P.
Effenberg, F.
Ehrke, G.
Endler, M.
Geiger, J.
Ennis, D.
Erckmann, E.
Esteban, H.
Estrada, T.
Fahrenkamp, N.
Feist, J.-H.
Fellinger, J.
Fernandes, H.
Fietz, W.H.
Figacz, W.
Grulke, O.
Fontdecaba, J.
Ford, O.
Fornal, T.
Frerichs, H.
Freund, A.
Führer, M.
Funaba, T.
Galkowski, A.
Gantenbein, G.
Gao, Y.
Helander, P.
García Regaña, J.
Garcia-Munoz, M.
Gates, D.
Gawlik, G.
Geiger, B.
Giannella, V.
Gierse, N.
Gogoleva, A.
Goncalves, B.
Goriaev, A.
Hirsch, M.
Gradic, D.
Grahl, M.
Green, J.
Grosman, A.
Grote, H.
Gruca, M.
Guerard, C.
Haiduk, L.
Han, X.
Harberts, F.
Höfel, U.
Harris, J.H.
Hartfuß, H.-J.
Hartmann, D.
Hathiramani, D.
Hein, B.
Heinemann, B.
Heitzenroeder, P.
Henneberg, S.
Hennig, C.
Hernandez Sanchez, J.
Jakubowski, M.
Hidalgo, C.
Hölbe, H.
Hollfeld, K.P.
Hölting, A.
Höschen, D.
Houry, M.
Howard, J.
Huang, X.
Huber, M.
Huber, V.
Knauer, J.
Hunger, H.
Ida, K.
Ilkei, T.
Illy, S.
Israeli, B.
Ivanov, A.
Jablonski, S.
Jagielski, J.
Jelonnek, J.
Jenzsch, H.
Kocsis, G.
Junghans, P.
Kacmarczyk, J.
Kaliatka, T.
Kallmeyer, J.-P.
Kamionka, U.
Karalevicius, R.
Kasahara, H.
Kasparek, W.
Kenmochi, N.
Keunecke, M.
König, R.
Khilchenko, A.
Kinna, D.
Kleiber, R.
Klinger, T.
Knaup, M.
Kobarg, Th.
Köchl, F.
Kolesnichenko, Y.
Könies, A.
Köppen, M.
Kornejew, P.
Koshurinov, J.
Koslowski, R.
Köster, Friedemann
Koziol, R.
Krämer, M.
Krampitz, R.
Kraszewsk, P.
Krawczyk, N.
Kremeyer, T.
Krings, Th.
Krämer-Flecken, Andreas
Krom, J.
Krzesinski, G.
Ksiazek, I.
Kubkowska, M.
Kühner, G.
Kurki-Suonio, T.
Kwak, S.
Lang, R.
Langish, S.
Laqua, H.
Krychowiak, M.
Laube, R.
Lechte, C.
Lennartz, M.
Leonhardt, W.
Lewerentz, L.
Liang, Y.
Linsmeier, Ch.
Liu, S.
Lobsien, J.-F.
Loesser, D.
Landreman, M.
Loizu Cisquella, J.
Lore, J.
Lorenz, A.
Losert, M.
Lubyako, L.
Lücke, A.
Lumsdaine, A.
Lutsenko, V.
Majano-Brown, J.
Marchuk, O.
Langenberg, A.
Mardenfeld, M.
Marek, P.
Massidda, S.
Masuzaki, S.
Maurer, D.
McCarthy, K.
McNeely, P.
Meier, A.
Mellein, D.
Mendelevitch, B.
Laqua, H.P.
Mertens, Ph.
Mikkelsen, D.
Mishchenko, O.
Missal, B.
Mittelstaedt, J.
Mizuuchi, T.
Mollen, A.
Moncada, V.
Mönnich, T.
Morizaki, T.
Lazerson, Samuel
Munk, R.
Murakami, S.
Musielok, F.
Náfrádi, G.
Nagel, M.
Naujoks, D.
Neilson, H.
Neubauer, O.
Neuner, U.
Ngo, T.
Maaßberg, H.
Nocentini, R.
Nührenberg, C.
Nührenberg, J.
Obermayer, S.
Offermanns, G.
Ogawa, K.
Ongena, J.
Oosterbeek, J.W.
Orozco, G.
Otte, M.
Marsen, S.
Pacios Rodriguez, L.
Pan, W.
Panadero, N.
Panadero Alvarez, N.
Panin, A.
Papenfuß, D.
Paqay, S.
Pavone, A.
Pawelec, E.
Pelka, G.
Marushchenko, M.
Peng, X.
Perseo, V.
Peterson, B.
Pieper, A.
Pilopp, D.
Pingel, S.
Pisano, F.
Plaum, B.
Plunk, G.
Povilaitis, M.
Moseev, D.
Preinhaelter, J.
Proll, J.
Puiatti, M.-E.
Puig Sitjes, A.
Purps, F.
Rack, M.
Récsei, S.
Reiman, A.
Reiter, D.
Remppel, F.
Niemann, H.
Renard, S.
Riedl, R.
Riemann, J.
Rimkevicius, S.
Riße, K.
Rodatos, A.
Röhlinger, H.
Romé, M.
Rong, P.
Roscher, H.-J.
Pablant, N.
Roth, B.
Rudischhauser, L.
Rummel, K.
Rummel, T.
Runov, A.
Rust, N.
Ryc, L.
Ryosuke, S.
Sakamoto, R.
Samartsev, A.
Pasch, E.
Sanchez, M.
Sano, F.
Satake, S.
Satheeswaran, G.
Schacht, J.
Schauer, F.
Scherer, T.
Schlaich, A.
Schlüter, K.-H.
Schmitt, J.
Rahbarnia, K.
Schmitz, H.
Schmitz, O.
Schmuck, S.
Schneider, M.
Schneider, W.
Scholz, M.
Scholz, P.
Schrittwieser, R.
Schröder, M.
Schröder, T.
Schlisio, G.
Schroeder, R.
Schumacher, H.
Schweer, B.
Shanahan, B.
Shikhovtsev, I.V.
Sibilia, M.
Sinha, P.
Sipliä, S.
Skodzik, J.
Slaby, C.
Stange, T.
Smith, H.
Spiess, W.
Spong, D.A.
Spring, A.
Stadler, R.
Standley, B.
Stephey, L.
Stoneking, M.
Stridde, U.
Sulek, Z.
Sunn Pedersen, T.
Surko, C.
Suzuki, Y.
Szabó, V.
Szabolics, T.
Szökefalvi-Nagy, Z.
Tamura, N.
Terra, A.
Terry, J.
Thomas, J.
Thomsen, H.
Svensson, J.
Thumm, M.
von Thun, C.P.
Timmermann, D.
Titus, P.
Toi, K.
Travere, J.M.
Traverso, P.
Tretter, J.
Tsuchiya, H.
Tsujimura, T.
Szepesi, T.
Tulipán, S.
Turnyanskiy, M.
Unterberg, B.
Urban, J.
Urbonavicius, E.
Vakulchyk, I.
Valet, S.
van Millingen, B.
Vela, L.
Velasco, J.-L.
Trimino Mora, H.
Vergote, M.
Vervier, M.
Vianello, N.
Viebke, H.
Vilbrandt, R.
Vorkörper, A.
Wadle, S.
Wagner, F.
Wang, E.
Wang, N.
Turkin, Y.
Warmer, F.
Wegener, L.
Weggen, J.
Wei, Y.
Wendorf, J.
Werner, A.
Wiegel, B.
Wilde, F.
Winkler, E.
Winters, V.
Wauters, T.
Wolf, S.
Wolowski, J.
Wright, A.
Xanthopoulos, P.
Yamada, H.
Yamada, I.
Yasuhara, R.
Yokoyama, M.
Zajac, J.
Zarnstorff, M.
Weir, G.
Zeitler, A.
Zhang, H.
Zhu, J.
Zilker, M.
Zimbal, A.
Zocco, A.
Zoletnik, S.
Zuin, M.
Wenzel, U.
Windisch, T.
Wurden, Glen
Zhang, D.
Abramovic, I.
Äkäslompolo, S.
Aleynikov, P.
Aleynikova, K.
Alzbutas, R.
Anda, G.
Andreeva, T.
Ascasibar, E.
Assmann, J.
Baek, S.-G.
Banduch, M.
Barbui, T.
Barlak, M.
Baumann, K.
Behr, W.
Benndorf, A.
Bertuch, O.
Biel, W.
Birus, D.
Blackwell, B.
Blanco, E.
Blatzheim, M.
Bluhm, T.
Böckenhoff, D.
Bolgert, P.
Borchardt, M.
Borsuk, V.
Boscary, J.
Böttger, L.-G.
Brand, H.
Brandt, Ch.
Bräuer, T.
Braune, H.
Brezinsek, S.
Brunner, K.-J.
Brünner, B.
Burhenn, R.
Buttenschön, B.
Bykov, V.
Calvo, I.
Cannas, B.
Cappa, A.
Carls, A.
Carraro, L.
Carvalho, B.
Castejon, F.
Charl, A.
Chernyshev, F.
Cianciosa, M.
Citarella, R.
Type: Article
URI: https://depositonce.tu-berlin.de/handle/11303/16324
http://dx.doi.org/10.14279/depositonce-15099
License: https://creativecommons.org/licenses/by/3.0/
Abstract: After completing the main construction phase of Wendelstein 7-X (W7-X) and successfully commissioning the device, first plasma operation started at the end of 2015. Integral commissioning of plasma start-up and operation using electron cyclotron resonance heating (ECRH) and an extensive set of plasma diagnostics have been completed, allowing initial physics studies during the first operational campaign. Both in helium and hydrogen, plasma breakdown was easily achieved. Gaining experience with plasma vessel conditioning, discharge lengths could be extended gradually. Eventually, discharges lasted up to 6 s, reaching an injected energy of 4 MJ, which is twice the limit originally agreed for the limiter configuration employed during the first operational campaign. At power levels of 4 MW central electron densities reached 3  ×  1019 m−3, central electron temperatures reached values of 7 keV and ion temperatures reached just above 2 keV. Important physics studies during this first operational phase include a first assessment of power balance and energy confinement, ECRH power deposition experiments, 2nd harmonic O-mode ECRH using multi-pass absorption, and current drive experiments using electron cyclotron current drive. As in many plasma discharges the electron temperature exceeds the ion temperature significantly, these plasmas are governed by core electron root confinement showing a strong positive electric field in the plasma centre.
Subject(s): stellarator
magnetic confinement
plasma heating
current drive
Issue Date: 27-Jul-2017
Date Available: 9-Feb-2022
Language Code: en
DDC Class: 530 Physik
Sponsor/Funder: EC/H2020/633053/EU/Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium/Euratom
Journal Title: Nuclear Fusion
Publisher: IOP
Volume: 57
Issue: 10
Article Number: 102020
Publisher DOI: 10.1088/1741-4326/aa770d
EISSN: 1741-4326
ISSN: 0029-5515
TU Affiliation(s): Fak. 4 Elektrotechnik und Informatik » Inst. Softwaretechnik und Theoretische Informatik » Quality and Usability Lab
Appears in Collections:Technische Universität Berlin » Publications

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