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TY - CPAPER AU - Palczewski, A.D. AU - Davis, G.K. AU - Furuta, F. AU - Ge, G.M. AU - Gonnella, D. AU - Liepe, M. TI - Performance of Dressed Cavities for the Jefferson Laboratory LCLS-II Prototype Cryomodule - With Comparison to the Pre-Dressed Performance J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - Initial vertical RF test results and quench studies for six of the eight undressed 9 cell cavities slated for use in the Jefferson laboratory LCLS-II prototype cryomodule were presented at IPAC2015*. For the final string 2 more cavities AES029 and AES030 (work done at Cornell) are being processed and tested for qualification before helium vessel welding. In addition, AES034 (initial R&D treatment) is being reworked with the current production protocol after a surface reset to improve the overall performance. After final qualification all 8 cavities will be welded into helium vessels and equipped with HOM couplers. In this paper we will present the final undressed and dressed vertical RF data comparing the changes in the surface resistance before their installation in the cryomodule string. PB - JACoW CY - Geneva, Switzerland SP - 178 EP - 181 KW - cavity KW - HOM KW - cryomodule KW - hardware KW - linac DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-MOPB040 UR - http://srf2015.vrws.de/papers/mopb040.pdf ER -