||At Peking University, there has been
significant progress in the development and testing of components and
subsystems of Peking Univ. SC Accelerator Facility (PKU-SCAF) for FEL
project based on the SRF technology. PKU-SCAF is composed of the SC
photo injector and a SC main accelerator. The injector is the first
photocathode electron gun to connect Pierce DC gun with 1.3GHz SC
cavity, which has been completely installed in our lab, including 1+1/2
cell Nb cavity, cryostat, RF subsystem, photocathode preparation
chamber, drive laser, timing stabilizer and beam diagnostic tools.
Testing of the DC-SC photo injector is nearing completion. Fresh effort
has been initiated to design a main SC accelerator for PKU-SCAF. Two
9-cell cavities of TESLA type and Rossendorf cryostat will be adopted.
To support this effort, the collaboration with DESY and ROSSENDORF is
underway, where focuses are 9-cell cavity, cryostat and main coupler