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Contribution Invited Oral

Budker INP - Conference Hall
SR and FEL sources and centers

Accelerator development at NSRRC-from the first 3rd-generation light source in Asia to a low-emittance photon source


  • Dr. Gwo-Huei LUO

Primary authors


Taiwan Light Source (TLS) was the first third generation light source in Asia and served to users in 1993 with 1.3 GeV beam energy and 200 mA design current. The requests for higher photon energy and flux emerged from x-ray users’ community. After series upgraded, TLS has the capabilities running in top-up injection with beam energy increased to 1.5 GeV and 360 mA of beam current. A six-fold symmetry TLS storage-ring has 9 insertion devices installed, which included 5 Super-Conducting (SC) wigglers and 4 conventional wiggler and undulators. In order to improve the instabilities threshold and the photon flux, higher-order-modes (HOM)-free SC cavity was installed to replace primitive Doris cavities in the ring. Academic and operation statics will be presented.

Taiwan Photon Source (TPS) was designed to have extreme low emittance, 1.6 nm-rad., to push the x-ray brightness into world frontier in ring-based facilities. The ring is DBA lattice with 3 GeV beam energy and 500 mA of design beam current in 24-cells. Top-up injection with HOM-free SC cavities are the target mode and power sources for day-one operation. The design, construction and commissioning results will be addressed in this presentation.