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TY - CPAPER AU - Pierini, P. AU - Bertucci, M. AU - Bosotti, A. AU - Chen, J.F. AU - Gresele, A. AU - Maiano, C.G. AU - Michelato, P. AU - Monaco, L. AU - Moretti, M. AU - Pagani, C. AU - Paparella, R. AU - Pierini, P. AU - Rizzi, M. AU - Sertore, D. AU - Vogel, E. TI - Fabrication of the 3.9 GHz SRF Structures for the European XFEL J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - One batch of 10 cavities has been completed and eight structures have been installed in the 3.9 GHz cryomodule for the European XFEL Injector operation. A second batch of 10 RF structures for a spare injector module is under fabrication. The fabrication has been performed according to the European Pressure Vessel regulations, as needed for the EXFEL operation. This paper describes the fabrication, quality control/assurance procedures and frequency preparation steps in order to achieve cavities at the correct frequency and length within the specifications. PB - JACoW CY - Geneva, Switzerland SP - 1162 EP - 1165 KW - cavity KW - controls KW - operation KW - linac KW - status DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB035 UR - http://srf2015.vrws.de/papers/thpb035.pdf ER -