STATUS AND FUTURE OF TAIWAN LIGHT SOURCE

Radiation Research Center (NSRRC) has reached a very stable operation condition and productive scientific outputs. The copper Doris RF cavities were replaced with a niobium Superconducting (SC) RF cavity in order to eliminate higher-order-modes and deliver higher beam current. Superconducting wigglers were installed to provide higher flux at higher photon energy. The storage ring is now operated at 300 mA top-up mode with better than 97 % of beam availability during users shifts. The original layout of the magnets has been greatly modified to accommodate one SC wavelength shifter at the injection section, one SC wiggler at the RF cavity section, and three SC wigglers in achromatic sections in addition to the original design of one wiggler and three undulators. In view of the future scientific demands, the NSRRC is proposing to construct a new synchrotron storage ring of 3.0~3.3 GeV and ultra low emittance, the Taiwan Photon Source (TPS). The TPS will provide brilliant X-rays at 10 21 photons/s/0.1%BW /mm 2 /mr 2 by SC undulator upon its completion, making it the brightest synchrotron light with the finest performance in the world. TOP-UP INJECTION Several major upgrades are integrated into routine operation in Taiwan Light Source (TLS) in recently years. Top-up injection mode was achieved after series upgraded of injector, transfer line and injection components. The operation current of Top-up injection reached 300 mA during users shift. The commissioning [1] of the first and second Superconducting RF cavities (SRF) was very smooth and exceeded the specification in several measures. The first In-Archromat-SuperconductingWiggler (IASW) was installed and commissioned successfully. The associated beamlines will be commissioned in the first quarter of 2007.