Design and first-round commissioning result of the SASE beamline at the Shanghai Soft X-ray FEL facility

The Shanghai Soft X-ray Free-Electron Laser (SXFEL) is the first X-ray free-electron laser facility in China. The SASE beamline, which consists of a pink-beam branch and a mono-beam branch, is one of the two beamlines in the Phase-I construction. The pink-beam branch opened for users in 2023 after successful first-round beamline commissioning. In this paper, the design of the beamline is presented and the performance of the pink-beam branch is reported. The measured energy-resolving power of the online spectrometer is over 6000 @ 400   eV. The focusing spot size of the pink beam is less than 3   µ m in both the horizontal and vertical at the endstation.

Source: Journal of Synchrotron Radiation - November 17, 2023 Category: Physics Authors: Xue, C. Guo, Z. Liu, H. Chen, J. Tong, Y. Fan, J. Jiang, H. Liu, Z. Zhang, X. Tai, R. Tags: free-electron laser SASE beamline online spectrometer focusing spot beamlines Source Type: research