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TY - CPAPER AU - Xu, W. AU - Belomestnykh, S.A. AU - Ben-Zvi, I. AU - Hahn, H. TI - High Current eRHIC Cavity Design and HOM Damping Scheme J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - A 422 MHz cavity was designed for high current FFAG lattice ERLs for high luminosity eRHIC. The cavity was optimized to be able to propagate all the HOMs out of the cavity for high BBU threshold current and low HOM power (loss factor). Coupling the full spectrum (up to 30 GHz) HOMs out of the cavity and delivering the HOM power (up to 8 kW) out of the cryomodule is a challenge. A damping scheme with 6 coaxial line HOM couplers for low frequency HOMs and 3 waveguide HOM dampers for high frequency (so that the waveguide is small) is proposed to damp the full spectrum and high power HOMs. This paper will present the cavity design and HOM damping scheme. PB - JACoW CY - Geneva, Switzerland SP - 1297 EP - 1300 KW - cavity KW - HOM KW - damping KW - linac KW - impedance DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB074 UR - http://srf2015.vrws.de/papers/thpb074.pdf ER -