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Chen, J.-R.

 
Paper Title Page
WG108 The Development of Accelerator-Based Light Source in Taiwan  
 
  • G.-H. Luo, C.-T. Chen, J.-R. Chen, P. J. Chou, K.-T. Hsu, C.-C. Kuo, K. S. Liang, M.-H. Wang
    NSRRC, Hsinchu
 
  After more than 12 years of steady operation and expansion, the Taiwan Light Source (TLS) of National Synchrotron Radiation Research Center (NSRRC) has reached a very stable and productive operation condition. In 2004, a major upgrade took place in which the original copper Doris RF cavities were replaced with a niobium superconducting RF cavity in order to eliminate higher-order-modes and deliver higher beam current. In 2005, the top-up injection mode was also successfully implemented. The storage ring is now operated at 300 mA top-up mode with better than 98% of beam availability to the users community. With a small size (120 m) circumference of the six-fold ring, the original layout of the magnets has been greatly modified to accommodate one superconducting wavelength shifter at the injection section, one superconducting wiggler at the RF cavity section, and three superconducting wigglers in achromatic sections in addition to the original design of one wiggler and three undulators. The TLS can now provide high photon flux to cover a whole spectrum of infrared, vacuum ultra violet, soft X-ray, and hard X-rays for advanced experiments. Currently, TLS has 28 beamlines and over 54 experimental stations in operation for many different scientific researches. The user body is reaching twelve hundreds. 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). A feasibility study of TPS has been completed and submitted to the National Science Council for evaluation.  
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