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TY - CONF AU - Kostin, R.A. AU - Gonin, I.V. AU - Jing, C. AU - Kelly, M.P. AU - Khabiboulline, T.N. AU - Laxdal, R.E. AU - Romanov, G.V. AU - Ross, S. AU - Yakovlev, V.P. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - A New Design of a Dressed Balloon Cavity with Superior Mechanical Properties J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - Superconducting spoke cavities are prone to multipactor - resonant raise of a number of electrons due to secondary emission. Recently proposed and tested by TRIUMF balloon-type spoke cavity showed an outstanding multipactor (MP) suppression property but unfortunately serious Q degradation at high fields. A new fully developed design of a dressed balloon cavity which can be used for any proton linac SSR2 section is developed. The design incorporates additional EP ports for high Q-factor demonstration. Superior properties are demonstrated, such as effective multipactor suppression, 40% lower Lorentz force coefficient, zero sensitivity to external pressure. This paper presents the results of coupled structural Multiphysics analysis, and engineering design of the dressed balloon cavity with EP ports. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1769 EP - 1772 KW - cavity KW - multipactoring KW - SRF KW - linac KW - software DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-TUPAB166 UR - https://jacow.org/ipac2021/papers/tupab166.pdf ER -