Commissioning of the linac for the heidelberg heavy ion Cancer Therapy Centre (HIT)

A clinical accelerator facility for cancer therapy using energetic proton and ion beams (C, He and O) is currently under commissioning at the Radiologische Universitats-klinik 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. The commissioning of the linac was performed in three steps for the LEBT, the RFQ, and the IH-DTL. For this purpose a dedicated beam diagnostics test bench was used. In this contribution the procedures and the results of the successful beam commissioning of the linear accelerator in the year 2006 are reported.