Speaker
Description
Installation Strategy of the Siam Photon Source II Synchrotron Light Source
Siam Photon Source II (SPS-II) is a 4th generation synchrotron light source currently under development in Thailand. Featuring a 3.0 GeV electron beam energy and a 327.6 m circumference, the facility utilizes a Double-Triple Bend Achromat (DTBA) lattice to achieve sub-nanometer natural emittance. The DTBA configuration was specifically selected for its superior "productivity"—optimizing the ratio of straight-section length to total circumference. This 14-cell storage ring provides 14 long and 14 short straight sections, to accommodate insertion devices and essential machine subsystems. The combination of a 270 MeV linear accelerator and a 3.0 GeV concentric booster synchrotron works as the beam injector. Seven Phase-1 photon beamlines will provide users with high-intensity photon beams with energy ranging from 80 eV to 60 keV. The on-girder alignment of the SPS-II storage ring magnets is based on precision mechanical reference surface methodology pioneered by Paul Scherrer Institute (PSI) for the Swiss Light Source (SLS). This presentation details the comprehensive installation roadmap for the SPS-II accelerator, covering mechanical integration, alignment tolerances, and the phased commissioning strategy.