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TY - UNPB AU - Omolayo, O. ED - Yamazaki, Yoshishige ED - Raubenheimer, Tor ED - McCausey, Amy ED - Schaa, Volker RW TI - Vacuum System Solutions for Small Vacuum Chamber Next Generation Storage Rings J2 - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019 CY - Lansing, MI, USA T2 - North American Particle Accelerator Conference T3 - 4 LA - english AB - The extremely low emittance promised by multi-bend achromat (MBA) based lattices can be achieved only by strong focusing and combined functions magnets that are challenging the present technology for those magnets. Such a level of focusing can be achievable only if significantly small gap magnets are used. Such a requirement imposes extremely small vacuum chamber cross-section with very small vacuum conductance. A new vacuum strategy using distributed pumping and other challenging solutions are adopted to achieve the goals. This talk describes these challenges and presents a review of the technological solutions presently pursued. PB - JACoW Publishing CP - Geneva, Switzerland ER -