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TY - CONF AU - Bignami, A. AU - Bertucci, M. AU - Bosotti, A. AU - Chen, J.F. AU - Michelato, P. AU - Monaco, L. AU - Pagani, C. AU - Paparella, R. AU - Pirani, S. AU - Sertore, D. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - INFN-LASA Design and Prototyping Activity for PIP-II J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - The design of the PIP-II medium-β, 5-cell, 650 MHz SRF elliptical cavity and the first steps of its prototyping activity are here presented. A design based on a three dies fabrication model has been chosen and fully characterized in terms of electromagnetic and mechanical parameters. Goal of the optimization has been to realize a highly performant cavity for CW operation with reasonably good performances when pulsed. A prototyping phase started with the production of three single-cell cavities used to validate the LASA model and to develop an optimal recipe for RF surface treatment according to the state-of-the-art of the high-Q frontier. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2640 EP - 2643 KW - cavity KW - HOM KW - coupling KW - operation KW - linac DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-WEPMK007 UR - http://jacow.org/ipac2018/papers/wepmk007.pdf ER -