The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CPAPER AU - Solyak, N. AU - Awida, M.H. AU - Grassellino, A. AU - Grimm, C.J. AU - Hocker, A. AU - Holzbauer, J.P. AU - Khabiboulline, T.N. AU - Melnychuk, O.S. AU - Rowe, A.M. AU - Sekutowicz, J.K. AU - Sergatskov, D.A. AU - Solyak, N. TI - HOM Coupler Performance in CW Regime in Horizontal and Vertical Tests J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - Power dissipation in HOM coupler antenna can limit cavity gradient in cw operation. XFEL design of HOM coupler, feedthrough and thermal connection to 2K pipe was accepted for LCLS-II cavity based on simulation results. Recently a series of vertical and horizontal tests was done to prove design for cw operation. In vertical test was found no effect of HOM coupler heating on high-Q cavity performance. In horizontal cryostat HOM coupler was tested up-to 23MV/m in continuous wave mode. Result proves that XFEL HOM coupler meets LCLS-II specifications. PB - JACoW CY - Geneva, Switzerland SP - 1349 EP - 1353 KW - HOM KW - cavity KW - operation KW - coupling KW - higher-order-mode DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB089 UR - http://srf2015.vrws.de/papers/thpb089.pdf ER -