SUPERCONDUCTING RF PROJECT AT THE SYNCHROTRON

The Synchrotron Radiation Research Center (SRRC) as a third generation light source facility began a major machine upgrade project in 1999. This upgrade will double the synchrotron light intensity operating at beam current of up to 500mA. The higher order mode (HOM) effects induced by the accelerating cavities will be eliminated to guarantee spectral performance. The superconducting 500-MHz cavity of the CESR III design has been selected to replace the existing room temperature accelerating cavities. A turbine-based cryogenic plant will enable the operation of the SRF cavity at 4.5K. Commissioning is scheduled for the summer 2003. This report discusses the overall status of the project. The strategy of developing an in-house SRF capability is emphasized, to provide skilled system maintenance and to long-term reliability of the light source