title: A Tandetron™ as proton injector for the eye tumor therapy in Berlin.
abstract: The therapy of eye tumors with fast protons is an excellent tool giving very high local control rates. At the Helmholtz-Zentrum Berlin (HZB) almost 1800 patients were treated since 1998. A 2 MV Tandetron™ was installed as injector for the k = 132 HZB cyclotron. Using the standard 358 duoplasmatron ion source with direct extraction of negative hydrogen ions an extremely stable proton beam can be delivered, both on the short-term and the long-term scale. The hair-needle filaments made from thoriated tungsten wires have safe operation times of more than 1000 h.
authors.affiliation: Protons for Therapy, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany. roehrich@helmholtz-berlin.de
authors.forename: J
authors.initials: J
authors.lastname: Röhrich
authors.forename: T
authors.initials: T
authors.lastname: Damerow
authors.forename: W
authors.initials: W
authors.lastname: Hahn
authors.forename: U
authors.initials: U
authors.lastname: Müller
authors.forename: U
authors.initials: U
authors.lastname: Reinholz
authors.forename: A
authors.initials: A
authors.lastname: Denker
mesh_terms: D000054:Acceleration; D005134:Eye Neoplasms / Q000532:radiotherapy*; D005858:Germany; D061766:Proton Therapy; D011878:Radiotherapy / Q000295:instrumentation*; D011522:Protons
chemical_list: D011522:Protons