1. Department of Physics and Astronomy, University of Florence, via G. Sansone 1, 50019 Sesto F.no, Italy
2. ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Fusion and Technology for Nuclear Safety and Security Department, Nuclear Safety, Security and Sustainability Division, via Martiri di Monte Sole 4, 40129 Bologna, Italy
3. Department of Information Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy
4. LENS, via N. Carrara 1, 50019 Sesto F.no, Italy
5. Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
6. INFN-Firenze, via G. Sansone 1, 50019 Sesto F.no, Italy