Frontiers in Physics (Aug 2022)

Kirkpatrick-Baez mirrors commissioning for coherent scattering and imaging endstation at SXFEL

  • Yajun Tong,
  • Jiadong Fan,
  • Yonggan Nie,
  • Zhi Guo,
  • Zichen Gao,
  • Xinye Yuan,
  • Bo He,
  • Jiahua Chen,
  • Difei Zhang,
  • Hui Luan,
  • Jianhua Zhang,
  • Donghao Lu,
  • Minghan Xie,
  • Peng Cheng,
  • Chao Feng,
  • Tao Liu,
  • Haixiao Deng,
  • Bo Liu,
  • Zhi Liu,
  • Zhi Liu,
  • Huaidong Jiang,
  • Huaidong Jiang

DOI
https://doi.org/10.3389/fphy.2022.977957
Journal volume & issue
Vol. 10

Abstract

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Shanghai Soft X-ray Free-Electron Laser (SXFEL) is the first X-ray free-electron laser facility in China. The initial commissioning of the beamline was carried out in May 2021. Herein, we present a status report and the first experimental results obtained during the early commissioning of Kirkpatrick-Baez (KB) mirrors for the Coherent Scattering and Imaging (CSI) endstation, including three types of diagnostics. A bright X-ray focal spot of less than 3 μm was achieved by using edge-scan and silicon ablation imprint measurements. In order to confirm the spot size, the attenuated beam and full beam are used respectively for the two measurement methods.

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