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TY - CONF AU - Conway, Z.A. AU - Barcikowski, A. AU - Gerbick, S.M. AU - Kedzie, M. AU - Kelly, M.P. AU - Kerby, J.S. AU - Kim, S.H. AU - Kutsaev, S.V. AU - Murphy, R.C. AU - Nassiri, A. AU - Ostroumov, P.N. AU - Reid, T. AU - Smith, T.L. AU - Zholents, A. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Development and Test Results of a Quasi-waveguide Multi-cell Resonator J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - This paper reports the successful fabrication and test results of a novel 2815 MHz superconducting deflecting cavity operating in a TE-mode trapped in a quasi-waveguide structure with extremely high shunt impedance. The waveguide structure of this cavity allows for the free propagation of all higher order modes (HOMs) out of the cavity via the beam ports, eliminating the need for HOM dampers inside the cavity when operated with high beam current. The absence of HOM dampers greatly simplifies the cavity fabrication and operation at cryogenic temperatures. This cavity with its high shunt impedance is ideal for the spatial rotation of short bunches in a small physical space, a requirement for the generation of sub-picosecond short pulse x-rays in electron storage rings or luminosity upgrades of colliders. Results characterizing the fabrication accuracy and precision, the RF performance at 2 K, and frequency tuning considerations will be discussed here. PB - JACoW CP - Geneva, Switzerland SP - 2595 EP - 2597 KW - cavity KW - niobium KW - cathode KW - impedance KW - HOM DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-WEPRI050 UR - http://jacow.org/ipac2014/papers/wepri050.pdf ER -