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Proceedings of the 2005 Particle Accelerator Conference
The momentum aperture of a storage ring is a very important parameter that strongly influences the performance, especially the beam lifetime. For the special case of synchrotron light sources with small emittance like the Advanced Light Source (ALS), the momentum aperture depends strongly on the transverse dynamics. It is very sensitive to machine conditions such as the tunes, chromaticities, lattice symmetry, and spurious coupling, since depending on those conditions the Touschek scattereddoi:10.1109/pac.2005.1590514 fatcat:khjk3ohfivcclprgapdrdgtlmi