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During successful beam commissioning of the superconducting 15-gap Crossbar H-mode (CH) cavity at GSI Helmholtzzentrum für Schwerionenforschung heavy ions up to the design beam energy have been accelerated. The design acceleration gain of 3.5 MeV inside a length of less than 70 cm has been reached with full transmission for heavy ion beams of up to 1.5 pμA. The measured beam parameters confirm sufficient beam quality. The machine beam commissioning is a major milestone of the R&D for the superconducting heavy ion continuous wave linear accelerator HELIAC (HElmholtz LInear ACcelerator) of Helmholtz Institute Mainz (HIM) and GSI, developed in collaboration with IAP Goethe-University Frankfurt (GUF). The next step is the procurement and commissioning of the so called ”Advanced Demonstrator” – the first of four cryomodules for the entire accelerator HELIAC. Results of further Demonstrator beam tests, as well as the status of the ”Advanced demonstrator” project will be reported.

Beam commissioning of the demonstrator setup for the superconducting continuous wave HIM/GSI-Linac