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 - CONF AU - Xiang, R. AU - Adolphsen, C. AU - Arnold, A. AU - Gatzmaga, S. AU - Hartung, W. AU - Hoffmann, A. AU - Kelly, M.P. AU - Kim, S.H. AU - Konomi, T.K. AU - Lewellen, J.W. AU - Miller, S.J. AU - Murcek, P. AU - Petersen, T.B. AU - Popielarski, L. AU - Saito, K. AU - Smedley, J. AU - Steinbrück, R. AU - Teichert, J. AU - Xu, T. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Design of a Cathode Insertion and Transfer System for LCLS-II-HE SRF Gun J2 - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023 CY - Grand Rapids, MI, USA T2 - International Conference on RF Superconductivity T3 - 21 LA - english AB - Superconducting radio frequency photo injectors (SRF gun) offer advantages for operating in continuous wave (CW) mode and generating high-brightness and high-current beams. A new SRF gun is designed as a low emittance photo injector for LCLS-II-HE and a prototype gun is currently being developed under collaboration between SLAC, FRIB, HZDR and ANL. The aim is to demonstrate stable CW operation at a cathode gradient of 30 MV/m. One of the crucial component for successful SRF gun operation is the photocathode system. The new SRF gun will adopt the HZDR-type cathode, which includes a cathode holder fixture (cathode stalk) developed by FRIB and a sophisticated cathode exchange system designed by HZDR. This innovative cathode insertion system ensures accurate, particle-free and warm cathode exchanges. A novel alignment process targets the cathode to the stalk axis without touching cathode plug itself. To commission the prototype gun, metallic cathodes will be used. A specifically designed vacuum system ensures vacuum pressure of 10⁻⁹ mbar for transport of a single cathode from the cleanroom to the gun. Thus maintaining cathode quality. PB - JACoW Publishing CP - Geneva, Switzerland SP - 267 EP - 270 KW - cathode KW - gun KW - SRF KW - insertion KW - operation DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-MOPMB067 UR - https://jacow.org/srf2023/papers/mopmb067.pdf ER -