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 - Tamashevich, Y. AU - Frahm, A. AU - Göbel, F. AU - Heling, S. AU - Hellwig, A. AU - Janke, K. AU - Klauke, S. AU - Knobloch, J. AU - Matveenko, A.N. AU - Neumann, A. AU - Plötz, H. AU - Prudnikava, A.L. AU - Rotterdam, S. AU - Schuster, M. AU - Ullrich, J. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Damage Recovery for SRF Photoinjector Cavities J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - Two niobium elliptical 1.3 GHz SRF electron photoinjector cavities were successfully recovered after mechanical inner surface damage. Both injector cavities had deep imprints in critical high surface electric field area around the photoelectric cathode position. The repairing procedure, consisting of surface inspection, mechanical polishing and light chemical etching is described in detail. Subsequent cold RF tests demonstrate complete performance recovery. PB - JACoW Publishing CP - Geneva, Switzerland ER -