A 1D Imaging Soft X-ray Spectrometer for the Small Quantum Systems Instrument at the European XFEL.
JOURNAL OF SYNCHROTRON RADIATION（2024）
Uppsala Univ
Abstract
A 1D imaging soft X-ray spectrometer installed on the small quantum systems (SQS) scientific instrument of the European XFEL is described. It uses movable cylindrical constant-line-spacing gratings in the Rowland configuration for energy dispersion in the vertical plane, and Wolter optics for simultaneous 1D imaging of the source in the horizontal plane. The soft X-ray fluorescence spectro-imaging capability will be exploited in pump–probe measurements and in investigations of propagation effects and other nonlinear phenomena.
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Key words
soft X-ray scattering,resonant inelastic X-ray scattering,RIXS,soft X-ray spectrometers,X-ray free-electron lasers,XFEL
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