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TY - UNPB AU - Neumann, A. ED - Ramberger, Suitbert ED - Draper, Mick ED - Schaa, Volker RW TI - The BERLinPro SRF Photoinjector System - From Design to First RF Commissioning Results J2 - Proc. of ERL2017, Geneva, Switzerland, June 18-23, 2017 C1 - Geneva, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop T3 - 59 LA - english AB - Helmholtz-Zentrum Berlin (HZB) is currently constructing an high average current superconducting (SC) ERL as a prototype to demonstrate low normalized beam emittance of 1 mm·mrad at 100mA and short pulses of about 2 ps. To reach the required beam properties, an SRF based photo-injector system was developed and recently underwent RF commissioning. The medium power prototype- a first stage towards the final high power 100 mA design- presented here features a 1.4 x λ/2 cell SRF cavity with a normal-conducting, high quantum efficiency Cs2KSb cathode, implementing a modified HZDR-style cathode insert. This injector potentially allows for 6 mA beam current and up to 3.5 MeV kinetic energy, limited by the modified twin TTF-III fundamental power couplers. In this contribution an overview of the design approach, cavity production and module assembly up to the first RF commissioning results of the photo-injector module will be presented. PB - JACoW Publishing CP - Geneva, Switzerland ER -