Confirmation of the topology of the Wendelstein 7-X magnetic field to better than 1:100,000

T. Sunn Pedersen, M. Otte, S. Lazerson, P. Helander, S. Bozhenkov, C. Biedermann, T. Klinger, R.C. Wolf, H.-S. Bosch, Ivana Abramovic, Simppa Äkäslompolo, Pavel Aleynikov, Ksenia Aleynikova, Adnan Ali, Arturo Alonso, Gabor Anda, Tamara Andreeva, Enrique Ascasibar, Jürgen Baldzuhn, Martin BanduchTullio Barbui, Craig Beidler, Andree Benndorf, Marc Beurskens, Wolfgang Biel, Dietrich Birus, Boyd Blackwell, Emilio Blanco, Marko Blatzheim, Torsten Bluhm, Daniel Böckenhoff, Peter Bolgert, Matthias Borchardt, Lukas-Georg Böttger, Rudolf Brakel, Christian Brandt, Torsten Bräuer, Harald Braune, Rainer Burhenn, Birger Buttenschön, Victor Bykov, Ivan Calvo, Alvaro Cappa, Andre Carls, Bernardo Brotas De Carvalho, Francisco Castejon, Mark Cianciosa, Michael Cole, Stefan Costea, Gabor Cseh, Agata Czarnecka, Andrea Da Molin, Eduardo De La Cal, Angel De La Pena, Sven Degenkolbe, Chandra Prakash Dhard, Andreas Dinklage, Marion Dostal, Michael Drevlak, Peter Drewelow, Philipp Drews, Andrzej Dudek, Frederic Durodie, Anna Dzikowicka, Paul Von Eeten, Florian Effenberg, Michael Endler, Volker Erckmann, Teresa Estrada, Nils Fahrenkamp, Joris Fellinger, Yühe Feng, Waldemar Figacz, Oliver Ford, Tomasz Fornal, Heinke Frerichs, Golo Fuchert, Manuel Garcia-Munoz, Benedikt Geiger, Joachim Geiger, Niels Gierse, Alena Gogoleva, Bruno Goncalves, Dorothea Gradic, Michael Grahl, Silvia Groß, Heinz Grote, Olaf Grulke, Carlos Guerard, Matthias Haas, Jeffrey Harris, Hans-Jürgen Hartfuß, Dirk Hartmann, Dag Hathiramani, Bernd Hein, Stefan Heirnich, Sophia Henneberg, Christine Hennig, Julio Hernandez, Carlos Hidalgo, Ulises Hidalgo, Matthias Hirsch, Udo Höfel, Hauke Hölbe, Alf Hölting, Michael Houry, Valentina Huber, Codrina Ionita, Ben Israeli, Slowomir Jablonski, Marcin Jakubowski, Anton Jansen Van Vuuren, Hartmut Jenzsch, Jacek Kaczmarczyk, Johann-Peter Kallmeyer, Ute Kamionka, Hiroshi Kasahara, Naoki Kenmochi, Winfried Kernbichler, Carsten Killer, David Kinna, Ralf Kleiber, Jens Knauer, Florian Köchl, Gabor Kocsis, Yaroslav Kolesnichenko, Axel Könies, Ralf König, Petra Kornejew, Felix Köster, Andreas Krämer-Flecken, Rüdiger Krampitz, Natalia Krawzyk, Thierry Kremeyer, Maciej Krychowiak, Ireneusz Ksiazek, Monika Kubkowska, Georg Kühner, Taina Kurki-Suonio, Peter Kurz, Katja Küttler, Sehyun Kwak, Matt Landreman, Andreas Langenberg, Fernando Lapayese, Heike Laqua, Heinrich-Peter Laqua, Ralph Laube, Michael Laux, Holger Lentz, Marc Lewerentz, Yunfeng Liang, Shaocheng Liu, Jim-Felix Lobsien, Joaquin Loizu Cisquella, Daniel Lopez-Bruna, Jeremy Lore, Axel Lorenz, Shoacheng Lui, Vadym Lutsenko, Henning Maassberg, Jeanette Maisano-Brown, Oleksandr Marchuk, Lionello Marrelli, Stefan Marsen, Nikolai Marushchenko, Suguru Masuzaki, Kieran McCarthy, Paul McNeely, Francisco Medina, Dusan Milojevic, Alexey Mishchenko, Bernd Missal, Joseph Mittelstaedt, Albert Mollen, Victor Moncada, Thomas Mönnich, Dmitry Moseev, Michael Nagel, Dirk Naujoks, G. Hutch Neilson, Olaf Neubauer, Ulrich Neuner, Tran-Tranh Ngo, Holger Niemann, Carolin Nührenberg, Jürgen Nührenberg, Marian Ochando, Kunihiro Ogawa, Jef Ongena, Hans Oosterbeek, Novimir Pablant, Danilo Pacella, Luis Pacios, Nerea Panadero, Ekkehard Pasch, Ignacio Pastor, Andrea Pavone, Ewa Pawelec, Angeles Pedrosa, Valeria Perseo, Byron Peterson, Dirk Pilopp, Fabio Pisano, Maria Ester Piulatti, Gabriel Plunk, Melanie Preynas, Josefine Proll, Aleix Puig Sitjes, Frank Purps, Michael Rack, Kian Rahbarnia, Jörg Riemann, Konrad Risse, Peter Rong, Joachim Rosenberger, Lukas Rudischhauser, Kerstin Rummel, Thomas Rummel, Alexey Runov, Norbert Rust, Leszek Ryc, Haruhiko Saitoh, Shinsuke Satake, Jörg Schacht, Oliver Schmitz, Stefan Schmuck, Bernd Schneider, Matthias Schneider, Wolfgang Schneider, Roman Schrittwieser, Michael Schröder, Timo Schröder, Ralf Schröder, Hans Werner Schumacher, Bernd Schweer, Ryoshuke Seki, Priyanjana Sinha, Seppo Sipilae, Christoph Slaby, Håkan Smith, Jorge Sousa, Anett Spring, Brian Standley, Torsten Stange, Adrian Von Stechow, Laurie Stephey, Matthew Stoneking, Uwe Stridde, Yasuhiro Suzuki, Jakob Svensson, Tamas Szabolics, Tamas Szepesi, Henning Thomsen, Jean-Marcel Travere, Peter Traverso, Humberto Trimino Mora, Hayato Tsuchiya, Tohru Tsuijmura, Yuriy Turkin, Swetlana Valet, Boudewijn Van Milligen, Luis Vela, Jose-Luis Velasco, Maarten Vergote, Michel Vervier, Holger Viebke, Reinhard Vilbrandt, Christian Perez Von Thun, Friedrich Wagner, Erhui Wang, Nengchao Wang, Felix Warmer, Tom Wauters, Lutz Wegener, Thomas Wegner, Gavin Weir, Jörg Wendorf, Uwe Wenzel, Andreas Werner, Yanling Wie, Burkhard Wiegel, Fabian Wilde, Thomas Windisch, Mario Winkler, Victoria Winters, Adelle Wright, Glen Wurden, Pavlos Xanthopoulos, Ichihiro Yamada, Ryo Yasuhara, Masayuki Yokoyama, Daihong Zhang, Manfred Zilker, Andreas Zimbal, Alessandro Zocco, Sandor Zoletnik

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Abstract

Fusion energy research has in the past 40 years focused primarily on the tokamak concept, but recent advances in plasma theory and computational power have led to renewed interest in stellarators. The largest and most sophisticated stellarator in the world, Wendelstein 7-X (W7-X), has just started operation, with the aim to show that the earlier weaknesses of this concept have been addressed successfully, and that the intrinsic advantages of the concept persist, also at plasma parameters approaching those of a future fusion power plant. Here we show the first physics results, obtained before plasma operation: that the carefully tailored topology of nested magnetic surfaces needed for good confinement is realized, and that the measured deviations are smaller than one part in 100,000. This is a significant step forward in stellarator research, since it shows that the complicated and delicate magnetic topology can be created and verified with the required accuracy.
Original languageEnglish
Article number13493
Pages (from-to)-
JournalNature Communications
Volume7
DOIs
Publication statusPublished - 30 Nov 2016
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Pedersen, T. S., Otte, M., Lazerson, S., Helander, P., Bozhenkov, S., Biedermann, C., Klinger, T., Wolf, R. C., Bosch, H-S., Abramovic, I., Äkäslompolo, S., Aleynikov, P., Aleynikova, K., Ali, A., Alonso, A., Anda, G., Andreeva, T., Ascasibar, E., Baldzuhn, J., ... Zoletnik, S. (2016). Confirmation of the topology of the Wendelstein 7-X magnetic field to better than 1:100,000. Nature Communications, 7, -. [13493]. https://doi.org/10.1038/ncomms13493