Journal Article Materials Imaging and Dynamics instrument SASE XFEL spectrometers X-ray free-electron lasers X-ray imaging XFEL XFELs beam diagnostics bent diamond crystals bent-diamond-crystal spectrometer conductive nanostructures crystal splitter dynamical diffraction fast 3D imaging free-electron lasers glass electronics graphene heaters graphene oxide in-line spectrometers laser-engineered nanostructures laser-induced backward transfer multi-projection multipurpose diagnostic end-station sensors strongly bent thin diamond crystals