An X-ray spectromicroscopic method was proposed by combining a transmission grating with multiple apertures and Wolter mirror imaging optics to capture the two-dimensional distribution of chemical state in a single shot. The method does not require the scan of photon energy and sample position, enabling an ultrafast measurement with a time resolution that matches the pulse width of the X-ray beam. We have designed and fabricated a multi-aperture grating for the soft X-ray beam with center photon energy of 100 eV.

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