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Persistent URL http://purl.org/net/epubs/work/46385796
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Record Id 46385796
Title Beam dynamics in MBA lattices with different chromaticity correction schemes
Abstract Ultra-low emittance lattices are being studied for the future upgrade of the SOLEIL 2.75 GeV storage ring. The candidate baseline lattice is inspired by the ESRF-EBS type MBA lattice, introducing a −I transformation to compensate the nonlinear impact of sextupoles thanks to the lattice symmetry and tight control of the betatron phase advance between sextupoles. Whilst its performance is under study, other types of lattices are being developed for SOLEIL: in particular, the so-called High-Order Achromat (HOA) lattice. Though the −I scheme provides a large on-momentum transverse dynamic aperture in 4D, its off-momentum performance is limited. Further studies in 6D reveal intrinsic off-momentum transverse oscillations, which are considered to result from of a nonlinear increase of the path length. The effect of the inhomogeneous sextupole distribution in the −I scheme shall be presented and compared with the HOA lattice under study.
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Language English (EN)
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Paper In Conference Proceedings In 10th International Particle Accelerator Conference (IPAC2019), Melbourne, Australia, 19-24 May 2019, (2019): 346-349. doi:10.18429/JACoW-IPAC2019-MOPGW096 2019