Development and commissioning of a broadband online X-ray spectrometer for the SXFEL Facility

Zhicheng Yang; Ximing Zhang; Heping Geng; Jiahua Chen; Chao Feng; Bo Liu; Bin Li

doi:10.1107/S1600577524005812

Journal of Synchrotron Radiation (Sep 2024)

Development and commissioning of a broadband online X-ray spectrometer for the SXFEL Facility

Zhicheng Yang,
Ximing Zhang,
Heping Geng,
Jiahua Chen,
Chao Feng,
Bo Liu,
Bin Li

Affiliations

Zhicheng Yang: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
Ximing Zhang: Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China
Heping Geng: Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China
Jiahua Chen: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
Chao Feng: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
Bo Liu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
Bin Li: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China

DOI: https://doi.org/10.1107/S1600577524005812
Journal volume & issue: Vol. 31, no. 5
pp. 1373 – 1381

Abstract

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A broadband online X-ray spectrometer has been designed and commissioned at the SUD beamline of the Shanghai Soft X-ray Free-Electron Laser Facility, which can deliver both SASE and seeded FEL pulses to user experiments, spanning the photon energy range of 50–620 eV. The resolving powers of the spectrometer calibrated via online measurement at 92 eV and 249 eV are ∼20000 and ∼15000, respectively, and the absolute photon energy is characterized by an electron time-of-flight spectrometer. The high energy resolution provided by the spectrometer can differentiate the fine structure in the FEL spectrum, to determine its pulse length.

Published in Journal of Synchrotron Radiation

ISSN: 0909-0495 (Print); 1600-5775 (Online)
Publisher: International Union of Crystallography
Country of publisher: United Kingdom
LCC subjects: Science: Physics: Nuclear and particle physics. Atomic energy. Radioactivity; Science: Chemistry: Crystallography
Website: https://journals.iucr.org/s/

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