1. Department of Physics “G. Occhialini,” University of Milano-Bicocca, 20126 Milan, Italy
2. Institute for Plasma Science and Technology, National Research Council, 20125 Milan, Italy
3. Institute of Atomic Physics, Magurele-Bucharest 077125, Romania
4. Culham Centre for Fusion Energy, Abingdon OX143EB, United Kingdom
5. Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
6. EUROfusion Consortium, Boltzmannstr. 2, Garching 85748, Germany
7. Ioffe Institute, St. Petersburg 195021, Russian Federation
8. Laboratory for Plasma Physics LPP-ERM/KMS, Brussels 1000, Belgium
9. Technical University of Denmark, Kgs. Lyngby 2800, Denmark
10. Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk 05-400, Poland