1. Max Planck Institute for Physics, 80805 Munich, Germany
2. CERN, 1211 Geneva 23, Switzerland
3. Ecole Polytechnique Federale de Lausanne (EPFL), Swiss Plasma Center (SPC), 1015 Lausanne, Switzerland
4. University of Manchester M13 9PL, Manchester M13 9PL, United Kingdom
5. Cockcroft Institute, Warrington WA4 4AD, United Kingdom
6. Lancaster University, Lancaster LA1 4YB, United Kingdom
7. John Adams Institute, Oxford University, Oxford OX1 3RH, United Kingdom
8. Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
9. UNIST, Ulsan 44919, Republic of Korea
10. UCL, London WC1 6BT, United Kingdom
11. Wigner Research Centre for Physics, 1121 Budapest, Hungary
12. ISCTE - Instituto Universitéario de Lisboa, 1049-001 Lisbon, Portugal
13. GoLP/Instituto de Plasmas e Fusáo Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
14. University of Wisconsin, Madison, Wisconsin 53706, USA
15. Philipps-Universität Marburg, 35032 Marburg, Germany
16. Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
17. STFC/ASTeC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
18. TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
19. Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
20. Novosibirsk State University, 630090 Novosibirsk, Russia
21. Angstrom Laboratory, Department of Physics and Astronomy, 752 37 Uppsala, Sweden
22. Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
23. INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
24. University of Liverpool, Liverpool L69 7ZE, United Kingdom