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TY - UNPB AU - Rao, T. ED - Ramberger, Suitbert ED - Draper, Mick ED - Schaa, Volker RW TI - Multialkali Cathode for High Current Electron Injector: Fabrication, Installation and Testing J2 - Proc. of ERL2017, Geneva, Switzerland, June 18-23, 2017 C1 - Geneva, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop T3 - 59 LA - english AB - The ability to produce high average current reliably and reproducibly over a long period of time with good quantum efficiency at visible wavelength is important for all ERL applications. There has been considerable interest in developing suitable cathodes for 24/7 operation under such stringent conditions. Recently, at BNL, we have fabricated cathodes with QE in the range of 10% for Cs-K-Sb cathodes and 5% for Na-K-Sb cathodes when irradiated with 532 nm laser and a single pulse charge up to 5 nC in the SRF gun has been produced. In this presentation, we discuss the fabrication of Cs-K-Sb and Na-K-Sb cathodes using both dispensers and effusion cells as sources of alkali metal, characterization of these cathodes, transporting them from the fabrication location to the RHIC tunnel under UHV conditions and installation in the electron guns in the tunnel. PB - JACoW Publishing CP - Geneva, Switzerland ER -