1. INFN Sezione di Napoli Naples Italy
2. Dipartimento di Fisica “Ettore Pancini” Università di Napoli Federico II Naples Italy
3. Léon Bérard Cancer Center University of Lyon & CREATiSUniversity of LyonCNRS Lyon France
4. Department of Medical Equipment Electronic and Information Technologies in Healthcare Medical University of Varna Varna Bulgaria
5. Department of Radiology University of California Davis Sacramento CA USA