1. Department of Electrical, Electronic and Information Engineering; University of Bologna; Viale del Risorgimento 2 40136 Bologna Italy
2. Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
3. Department of Molecular Medicine; University of Padova; Via Gabelli 63 35121 Padova Italy
4. Consorzio RFX; Corso Stati Uniti 4 35127 Padova Italy