Update plan of SPring-8 linac

The SPring-8 linac was completed and the first beam was observed in August 1996. This Linac is used for injection of the SPring-8 storage ring and New SUBARU ring (VUV-soft X-ray ring, under construction), and also used for some experiments like the slow positron facility and the parametric X-ray source. For the next stage, we are planning the reconstruction aimed at the single pass FEL (SASE : Self Amplified Spontaneous Emission). In the 1-D simulation, we get the 20 nm wavelength coherent light with 10-20 m length undulator. The gun system will be replaced from the thermonic HV cathode to the photocathode RF gun. And the magnetic bunch compress section will be installed in several areas.