Abstract The Hefei Light Source (HLS) is undergoing a major upgrade project, named HLS-
II, in order to obtain lower emittance and more insertion device straight sections. Undulators …

The upgrade project of the Hefei Light Source (HLS), named HLS-II, is under way, which
includes the reconstruction of its storage ring. The HLS-II storage ring has lower emittance …

The polarization switch of a free-electron laser (FEL) is of great importance to the user
scientific community. In this paper, we investigate the generation of controllable polarization …

A storage ring-based light source, Beijing Advanced Photon Source (BAPS), is proposed to
store a 5 GeV low-emittance electron beam and to provide high-brilliance coherent …

The target parameters of modern ultra-low emittance storage ring light sources are entering
into a regime where intra-beam scattering (IBS) becomes important and, in the case of the …

Abstract The conceptual of Hefei Advanced Light Source, which is an advanced VUV and
Soft X-ray source, was developed at NSRL of USTC. According to the synchrotron radiation …

We present two types of optics for the lattice of a compact storage ring for a Compton X-ray
source. The optics design for different operation modes of the storage ring are discussed in …

A design strategy is discussed in this paper, and it provides much convenience for effectively
exploring achievable linear optics and globally investigating the flexibility of a complex …

Tune optimization is necessary to optimize the nonlinearity of the third generation light
source storage ring. In this paper we summarize the common strategies for choosing a tune …

A new mode is designed with an emittance of 2.47 nm· rad at 3.0 GeV beam energy, lower
than the nominal mode of the Shanghai Synchrotron Radiation Facility (SSRF) storage ring …