The superconducting 130 MeV electron accelerator at Darmstadt

This paper reports that since the superconducting injector linac of the accelerator produced a first beam in August '87, the first cryomodule of the main linac containing another two accelerating structures has been installed and operated. The final concept of the rf control circuits has been developed and two prototype channels were operated successfully in an acceleration test with five superconducting structures. The beam from the injector linac was used routinely for atomic and nuclear physics experiments during the last four months