TY - JOUR A1 - Röhrich, J. A1 - Damerow, T. A1 - Hahn, W. A1 - Müller, U. A1 - Reinholz, Uwe A1 - Denker, A. T1 - A tandetron as proton injector for the eye tumor therapy in Berlin JF - Review of scientific instruments N2 - 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. KW - Biomedical equipment KW - Duoplasmatrons KW - Eye KW - Particle beam extraction KW - Radiation therapy KW - Tumours PY - 2012 DO - https://doi.org/10.1063/1.3662475 SN - 0034-6748 SN - 1089-7623 VL - 83 IS - 02B903 SP - 1 EP - 3 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-25721 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -