1. Laboratori Nazionali del Sud (LNS), Istituto Nazionale di Fisica Nucleare (INFN), 95123 Catania, Italy
2. Istituto Nazionale di Fisica Nucleare (INFN)—Sezione di Catania, 95123 Catania, Italy
3. Physics and Astronomy Department, Catania University, 95123 Catania, Italy
4. Physics and Astronomy Department, Florence University, 50019 Florence, Italy
5. Istituto Nazionale di Fisica Nucleare (INFN)—Sezione di Firenze, 50019 Florence, Italy
6. Institute for Microelectronics and Microsystems (IMM), National Research Council (CNR), 95121 Catania, Italy
7. Department of Engineering and Architecture, KORE University, Cittadella Universitaria, 94100 Enna, Italy