1. Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 127412, Russia
2. Department of Electrophysical Facilities, National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow 115409, Russia
3. Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, 310027 Hangzhou, China
4. Institut für Theoretische Physik I, Ruhr-Universität Bochum, D-44780 Bochum, Germany
5. Department of Physics, Linköping University, SE-58183 Linköping, Sweden
6. Department of Plasma Physics, Umeå University, SE-90187 Umeå, Sweden