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- M.T. Maier, R. Baer, W. Barth, L.A. Dahl, C. Dorn, T.G. Fleck, L. Groening, C.M. Kleffner, C. Müller, A. Peters, B. Schlitt, M. Schwickert, K. Tinschert, H. Vormann
GSI, Darmstadt
- R. Cee, B. Naas, S. Scheloske, T. Winkelmann
HIT, Heidelberg
- U. Ratzinger, A. Schempp
IAP, Frankfurt-am-Main
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A clinical facility for cancer therapy using energetic proton and ion beams (C, He and O) is under construction and will be installed at the Radiologische Universitätsklinik in Heidelberg, Germany. It consists of two ECR ion sources, a 7 MeV/u linac injector and a 6.5 Tm synchrotron to accelerate the ions to final energies of 50-430 MeV/u. The linac comprises a 400 keV/u RFQ and a 7 MeV/u IH-DTL operating at 216.8 MHz. In this contribution the current status of the linear accelerator is reported. After first tests with 1H+ beam of the RFQ at GSI, the commissioning of the accelerator in Heidelberg has already started. The commissioning with beam is performed in three steps for the LEBT, the RFQ and the IH-DTL. For this purpose a versatile beam diagnostic test bench has been designed. It consists of a slit-grid emittance measurement device, transverse pick-ups providing for time of flight energy measurements, SEM-profile grids and different devices for beam current measurements. This paper will provide for a status report of the linac-commissioning.
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