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http://purl.org/net/epubs/work/46385796
Record Status
Checked
Record Id
46385796
Title
Beam dynamics in MBA lattices with different chromaticity correction schemes
Contributors
L Hoummi (Cockcroft Inst., and Liverpool Univ.)
,
J Resta Lopez (Cockcroft Inst., and Liverpool Univ.)
,
CP Welsch (Cockcroft Inst., and Liverpool Univ.)
,
A Loulergue
,
R Nagaoka
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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CI
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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
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