2021/01/05 by Zhenghe Bai, Bai, Zhenghe, Penghui Yang +7
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced Fiber Laser Technologies #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Photonic and Optical Devices
paper · pdf · doi:10.48550/arxiv.2101.01492
openalex publication_date 2021/01/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper, a new lattice concept called the locally symmetric lattice is proposed for storage ring light sources. In this new lattice, beta functions are made locally symmetric about two mirror planes of the lattice cell, and the phase advances between the two mirror planes satisfy the condition of nonlinear dynamics cancellation. There are two kinds of locally symmetric lattices, corresponding to two symmetric representations of lattice cell. In a locally symmetric lattice, main nonlinear effects caused by sextupoles can be effectively cancelled within one lattice cell, and generally there can also be many knobs of sextupoles available for further optimizing the nonlinear dynamics. Two kinds of locally symmetric lattices are designed for a 2.2 GeV diffraction-limited storage ring to demonstrate the lattice concept.