1. IPFN, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
2. National Research Centre “Kurchatov Institute,” 123182 Moscow, Russia
3. Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
4. National Research Nuclear University MEPhI, 115409 Moscow, Russia
5. Fusion National Laboratory, CIEMAT, 28040 Madrid, Spain
6. Institute of Plasma Physics, NSC KIPT, 61108 Kharkov, Ukraine
7. Prokhorov General Physics Institute of the Russian Academy of Sciences, 117942 Moscow, Russia