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TY - CONF AU - Paparella, R. AU - Bertucci, M. AU - Bignami, A. AU - Bosotti, A. AU - Chen, J.F. AU - Chiodini, M. AU - D'Ambros, A. AU - Michelato, P. AU - Monaco, L. AU - Pagani, C. AU - Sagliano, L. AU - Sertore, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Status of the PIP-II Activities at INFN-LASA J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - INFN-LASA joined the international effort for the PIP-II project in Fermilab and it is expected to build the 650 MHz superconducting cavities required by the low-beta section of the 800 MeV front-end proton linac, as recently signed by US DOE and Italian MIUR. After developing the electro-magnetic and mechanical design, INFN-Milano started the prototyping phase by producing five single-cells and two complete 5-cells cavities. In a joint effort with Fermilab the road for the optimal surface treatment for such low-beta resonators has started in order to approach the existing state-of-the-art performances of beta 1 cavities. This paper reports the status of PIP-II activities at INFN-LASA summarizing manufacturing experience and preliminary experimental results. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2215 EP - 2218 KW - cavity KW - niobium KW - linac KW - interface KW - SRF DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPTS120 UR - http://jacow.org/ipac2019/papers/tupts120.pdf ER -