TY - JOUR
T1 - Confirmation of the topology of the Wendelstein 7-X magnetic field to better than 1:100,000
AU - The Wendelstein 7-X Team
AU - Pedersen, T. Sunn
AU - Otte, M.
AU - Lazerson, S.
AU - Helander, P.
AU - Bozhenkov, S.
AU - Biedermann, C.
AU - Klinger, T.
AU - Wolf, R. C.
AU - Bosch, H. S.
AU - Abramovic, Ivana
AU - Äkäslompolo, Simppa
AU - Aleynikov, Pavel
AU - Aleynikova, Ksenia
AU - Ali, Adnan
AU - Alonso, Arturo
AU - Anda, Gabor
AU - Andreeva, Tamara
AU - Ascasibar, Enrique
AU - Baldzuhn, Jürgen
AU - Banduch, Martin
AU - Barbui, Tullio
AU - Beidler, Craig
AU - Benndorf, Andree
AU - Beurskens, Marc
AU - Biel, Wolfgang
AU - Birus, Dietrich
AU - Blackwell, Boyd
AU - Blanco, Emilio
AU - Blatzheim, Marko
AU - Bluhm, Torsten
AU - Böckenhoff, Daniel
AU - Bolgert, Peter
AU - Borchardt, Matthias
AU - Böttger, Lukas Georg
AU - Brakel, Rudolf
AU - Brandt, Christian
AU - Bräuer, Torsten
AU - Braune, Harald
AU - Burhenn, Rainer
AU - Buttenschön, Birger
AU - Bykov, Victor
AU - Calvo, Ivan
AU - Cappa, Alvaro
AU - Carls, Andre
AU - De Carvalho, Bernardo Brotas
AU - Castejon, Francisco
AU - Cianciosa, Mark
AU - Cole, Michael
AU - Harris, Jeffrey
AU - Lore, Jeremy
N1 - Publisher Copyright:
© The Author(s) 2016.
PY - 2016/11/30
Y1 - 2016/11/30
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84999106918&partnerID=8YFLogxK
U2 - 10.1038/ncomms13493
DO - 10.1038/ncomms13493
M3 - Article
AN - SCOPUS:84999106918
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 13493
ER -
