1. Dipartimento Energia “Galileo Ferraris”, MAHTEP Group, Politecnico di Torino, Turin, Italy
2. Padua Division, National Institute for Nuclear Physics, Padua, Italy
3. Institute for Plasma Science and Technology, National Research Council (ISTP-CNR), Milan, Italy
4. the, Fusion and Nuclear Safety Department, ENEA, Frascati, Italy