Geneva Solutions Protontherapy News Publié le 28 juillet 2020 13:27. Modifié le 28 juillet 2020 16:51. A CERN start-up is giving radiotherapists eyes against cancer par Fabrice Delaye Co-founder of Terapet, Christina Vallgren uses gamma radiation to guide the proton beam that serves as a scalpel for the surgeons of the future. / Terapet