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 - Konomi, T. AU - Hara, K. AU - Honda, Y. AU - Hosoyama, K. AU - Inoue, H. AU - Kako, E. AU - Kondo, Y. AU - Masuzawa, M. AU - Omet, M. AU - Takatomi, T. AU - Terashima, A. AU - Tsuchiya, K. AU - Ueki, R. AU - Umemori, K. AU - Wang, X. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Horizontal Test Results of 1.3 GHz Superconducting RF Gun #2 at KEK 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 (SRF) electron guns are attractive for delivery of beams at a high bunch repetition rate with a high accelerating field. KEK has been developing the SRF gun to demonstrate basic performance. The SRF gun consists of 1.3 GHz and 1.5 cell SRF gun cavity and K2CsSb photocathode coated on 2K cathode plug. In the vertical test, the surface peak electric field and the surface peak magnetic field reached to 75 MV/m and 170 mT respectively. The SRF gun was installed to horizontal multipurpose cryostat equipped with a superconducting solenoid, photocathode preparation chamber and beam diagnostic line. The results showed the peak surface electric field degraded to 42 MV/m. We suspect that cavity was contaminated during assembly. In this presentation, we will present the high gradient performance in vertical and horizontal test and individual test for each beam line components. PB - JACoW Publishing CP - Geneva, Switzerland SP - 540 EP - 544 KW - gun KW - cavity KW - cathode KW - SRF KW - laser DA - 2023/09 PY - 2023 SN - 2673-5504 SN - 978-3-95450-234-9 DO - doi:10.18429/JACoW-SRF2023-TUPTB049 UR - https://jacow.org/srf2023/papers/tuptb049.pdf ER -