COMMISSIONING OF DEMONSTRATOR MODULE FOR CW HEAVY ION LINAC

The cw – Linac – demonstrator is a prototype of the first section of the proposed cw-LINAC@GSI, comprising a superconducting CH-cavity embedded by two superconducting solenoids. The sc CH-structure is the key component and offers a variety of research and development. The beam focusing solenoids provide maximum fields of 9.3 T at an overall length of 380 mm and a free beam aperture of 30 mm. The magnetic induction at the fringe is minimized to 50 mT at the inner NbTi-surface of the neighboring cavity. The fabrication of the key components is finished, as well as the cold performance testing of the RF cavity. The cryostat is ready for assembling and the test environment is completely prepared. After successful testing of the RFPower coupler, the components have been assembled to the suspended frame under cleanroom conditions. Alignment, assembly, under cleanroom condition issues will be presented. CW LINAC DEMONSTRATOR Table 1: Main Parameters CH-Cavity