Barday, R.; Jankowiak, A.; Kamps, T.; Matveenko, A.; Schenk, M.; Siewert, F.; Völker, J.; Teichert, J.: BEAM SIZE AND INTENSITY DIAGNOSTICS FOR A SRF PHOTOELECTRON INJECTOR. In: Proceedings of IBIC2012, Tsukuba, Japan. , 2012. - ISBN 978-3-95450-119-9, p. MOPB73/1-5

A high brightness photoelectron injector must be developed as a part of the BERLinPro ERL program [1, 2]. The injector is designed to produce an electron beam with 100mA average current and a normalized emittance of 1mmmrad. Prior to reaching the final gun/cathode design a staged SRF gun development program has been undertaken which began with the operation of a fully superconducting injector utilizing a lead photocathode. This will be followed by a normal conducting CsK2Sb cathode capable of generating high current beams. In the first stage we have measured the fundamental beam parameters bunch charge, beam energy and energy spread with a special focus on the measurement of the transverse beam profiles. We will also discuss our plans for the beam characterization at high currents.