Superconducting 130 MeV recyclotron for electrons at Darmstadt

The basic design and the present status of construction of a 130 MeV superconducting CW electron accelerator is described. The accelerator contains 11 multicell accelerating structures fabricated of Nb-metal and is operated at a temperature of 2K. The quality factor Q ≅ 3 x 109 and the average energy gain of each structure is 5 MeV/m. At present the 250 keV injection beam line, the 10 MeV injector, the first beam bend into the main accelerator and the first recirculation beamline for injecting the electron beam a second time into the main accelerator are completed. First rf tests of 3 coupled superconducting structures in the injector have been performed. The present status of the whole project as well as the experience from the first test are reported