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TY - CPAPER AU - Xie, Y. AU - Kanareykin, A. AU - Khabiboulline, T.N. AU - Lunin, A. AU - Poloubotko, V. AU - Rathke, J. AU - Rowe, A.M. AU - Solyak, N. AU - Yakovlev, V.P. TI - Demonstration of Coaxial Coupling Scheme at 26 MV/m for 1.3 GHz Tesla-Type SRF Cavities J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - Superconducting ILC-type cavities have an rf input coupler that is welded on. A detachable input coupler will reduce conditioning time (can be conditioned separately), reduce cost and improve reliability. The problem with placing an extra flange in the superconducting cavity is about creating a possible quench spot at the seal place. Euclid Techlabs LLC has developed a coaxial coupler which has an on the surface with zero magnetic field (hence zero surface current). By placing a flange in that area we are able to avoid disturbing surface currents that typically lead to a quench. The coupler is optimized to preserve the axial symmetry of the cavity and rf field. The surface treatments and rf test of the proto- type coupler with a 1.3 GHz ILC-type single-cell cavity at Fermilab will be reported and discussed. PB - JACoW CY - Geneva, Switzerland SP - 1397 EP - 1399 KW - cavity KW - coupling KW - niobium KW - SRF KW - HOM DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB105 UR - http://srf2015.vrws.de/papers/thpb105.pdf ER -