THE CONSTRUCTION STATUS OF BEAM TRANSPORT LINE FROM XFEL-LINAC TO SPring-8 STORAGE RING

The beam transport line from XFEL/Linac to SPring-8 storage ring to use the ultra short bunched electron beam at the storage ring is nearing to completion. The newly constructed line is 310 m, which is just a half of the whole path from the XFEL/Linac to the storage ring. Supposing that a bunch length and horizontal emittance at the exit of the XFEL/Linac are estimated about 30∼ 100 fs and 0.04 nmrad respectively, it is expected that the current beam emittance and bunch length in the SPring-8/Storage-ring (SR) is improved by a factor of about 100. The high brilliance and short pulsed synchrotron radiation light will be available in SR [1]. The conceptual design and construction status of the transport line will be presented with the emphasis on the detailed design and the fabrication of the magnets.