Bundesmann, J.; Denker, A.; Holz auf der Heide, J.: Beam Properties at the Experimental Target Station of the Proton Therapy in Berlin. In: Lowry Conradie ... [Ed.] : CYC2019 : Proceedings of the 22nd International Conference on Cyclotrons and their Applications. Geneve: JACoW, 2019. - ISBN 978-3-95450-205-9, p. TUP020/200-202
Open Access Version

Beside the therapy station for ocular tumours, we have an experimental area for irradiations with protons and other ions either in air or in vacuum. The beam spot can be focused to a diameter of 1 mm in air. For larger homogeneous irradiated areas, we can use beam scanning with up to10 nA spot current. If scanning is not possible due to experimental needs, scattering foils are used. For protons, the energy can be set to a mono-energetic beam of 68 MeV or to spread-out Bragg peaks with a mechanical range shifter. Very quick energy changes are achieved by absorber plates to reduce the energy.