SETUP AND STATUS OF AN SRF PHOTOINJECTOR FOR ENERGY-RECOVERY LINAC APPLICATION

The Superconducting RF (SRF) photoinjector programme for the energy-recovery linac (ERL) test facility bERLinPro sets out to push the brightness and average current limits for ERL electron sources by tackling the main challenges related to operation of SRF photoinjectors, the beam dynamics, the incorporation of high quantum efficiency (QE) photocathodes, and suppression of unwanted beam generation. The paper details the experimental layout and presents the status of the SRF photoinjector and the gun test facility GunLab at HelmholtzZentrum Berlin.