Applying Frequency Map Analysis to the Australian Synchrotron Storage Ring

Abstract

The technique of frequency map analysis has been applied to study the transverse dynamic aperture of the Australian Synchrotron Storage Ring. The results have been used to set the strengths of sextupoles to optimise the dynamic aperture. The effects of the allowed harmonics in the quadrupoles and dipole edge effects are discussed.

Lattice optimization for the HLS-II storage ring

“…Also, the FMA can direct the working point selection from those solutions in the vicinity of the studied solution. Because there are only two families of harmonic sextupoles to be optimized, the scan method can also be used to optimize the harmonic sextupoles to improve the dynamic aperture, and then the FMA is used to choose and analyze the optimization results, as the AS had done [7]. In our nonlinear optimization, we used the Elegant [8] code for tracking.…”

Optimization of harmonic sextupoles in Indus-2 electron storage ring

“…This approach has been extensively applied in various electron storage rings, like SLS, DIAMOND, NSLS-II, MAX-IV, PLS storage rings, etc. [9][10][11][12][13][14][15][16].…”

New chromaticity compensation approach and dynamic aperture increase in the SSRF storage ring

“…Two possible approaches dedicating to increasing the dynamic aperture may be mentioned. The first one is the strength scan of the harmonic sextupoles, which can be carried out in a simple lattice with one or two harmonic sextupole families, and the solution providing the largest dynamic aperture can be easily obtained, such as ELETTRA [2] and ASP [3] . But, for a complex lattice with several harmonic sextupole families, this method requires a lot of computing time.…”