1. Fusion@ÖAW, Institut für Theoretische Physik—Computational Physics, Technische Universität Graz, Petersgasse 16, 8010 Graz, Austria
2. Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, 85748 Garching, Germany
3. Institute of Plasma Physics, National Science Center, “Kharkov Institute of Physics and Technology,” Akademicheskaya str. 1, 61108 Kharkov, Ukraine
4. Department of Applied Physics and Plasma Physics, V. N. Karazin Kharkov National University, Svobody sq. 4, 61022 Kharkov, Ukraine