The APS-Upgrade uses swap-out injection, which means the injectors must supply a full charge bunch (up to 16 nC) to replace a depleted one in the storage ring. The APS injector chain consists of a linac, particle accumulator ring (PAR), and booster synchrotron. These machines were kept in place for the APS-U, with several key upgrades to support high charge operation. Major upgrades include...
Ultrafast electron diffraction (UED) is a rapidly advancing field, with a surge of scientific outcomes and significant progress in the development of high-brightness electron beams tailored for improved resolution and signal-to-noise ratios. In this talk, we will present recent developments in beam physics and technology aimed at producing beams with lower emittance, shorter bunch lengths,...
The High Energy Photon Source (HEPS) is the first 4th generation light source and the first high-energy storage ring light source in China, with a beam energy of 6 GeV, a circumference of 1360 m and a natural emittance of a few tens of picometers. As a green-field light source, the HEPS construction started in 2019 and is scheduled to be completed in 2025. Now civil construction, component...
