Progress of the Heidelberg high current injector

The accelerator facilities at the Max-Planck-Institut fur Kernphysik in Heidelberg will be upgraded by a new high current injector which is under development. The first phase will consist of a high current ion source (CHORDIS) for singly charged ions, two 4-ROD-RFQ-resonators and eight 7-gap-resonators. The ion source has already delivered the design current of several mA Li/sup +/. New 'vane-like' electrodes with good cooling properties and good mechanical stability allow the operation of the RFQ-resonators at high power level and duty cycle. The eight 7-gap-resonators were constructed and tested. The final energy of the injector (E=1.8 MeV/u) is matched to the existing post-accelerator. By adding an ECR-or an EBIS-source, the new injector-post accelerator system will be able to deliver beams up to uranium with energies above the Coulomb barrier. The progress of the project will be described.