1. Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
2. Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, 40, 28040 Madrid, Spain
3. Research Center Jülich, Institute for Energy and Climate Research Plasma Physics, Wilhelm-Johnen-Strasse, 52428 Jülich, Germany
4. University of Wisconsin Madison, Engineering Drive, Madison, Wisconsin 53706, USA
5. Max-Planck-Institut für Plasmaphysik, Boltzmannstrasse 2, 85748 Garching, Germany
6. National Institute for Fusion Science, 322-6 Oroshicho, Toki, Gifu Prefecture 509-5202, Japan
7. Laboratory for Plasma Physics, LPP-ERM/KMS, Avenue de la Renaissance 30, B-1000 Brussels, Belgium
8. Princeton Plasma Physics Laboratory, 100 Stellarator Rd., Princeton, New Jersey 08540, USA
9. Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, USA
10. Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA