JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Li, R.K. AU - Chen, H.B. AU - Du, Y.C. AU - Huang, P.W. AU - Huang, W.-H. AU - Shi, J.R. AU - Tang, C.-X. AU - Zhang, X.-Y. AU - Zheng, L.M. ED - Braun, Hans-Heinrich ED - Chrin, Jan ED - Ganter, Romain ED - Hiller, Nicole ED - Schaa, Volker RW TI - An Ultra-high Vacuum, High-gradient RF Gun and Advanced Photocathode Studies J2 - Proc. of FLS2023, Luzern, Switzerland, 27 August-01 September 2023 CY - Luzern, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop T3 - 67 LA - english AB - Photoinjectors are critical in defining the beam brightness and lasing performance of linac-based light sources. To further improve photoinjectors, one of the promising R&D opportunities is to combine high acceleration gradient with advanced photocathodes that feature low MTE, high QE, and visible light excitation, but unfortunately stringent vacuum conditions. Here we report on developing a new type of high-gradient S-band photocathode rf gun that can achieve one order of magnitude improvement of the vacuum level at the cathode and thus utilize various advanced semiconductor photocathodes. This gun serves as a testbed for exploring high-gradient-compatible photocathodes and new paradigms for optimizing and operating photoinjectors that enhance future light sources. PB - JACoW Publishing CP - Geneva, Switzerland ER -