Francesco Dionisi is a Doctor, and a Radiotherapist Oncologist at the Proton Therapy Center of Trento, where he deals with the Clinical selection of patients candidates for Proton Therapy, both internal to the Provincial Health Services and external, through first visits, multidisciplinary consultations, evaluation of clinical-radiological documentation. Simulation activities, contouring, planning with protons (active and passive technique), planning approval with protons, and clinical validation of dosimetric verification tests. Clinical management of patients undergoing proton therapy through check-ups during treatment for toxicity assessment and targeted therapy setting.