Journal Article Research Support, Non-U.S. Gov't serial crystallography European XFEL X-ray free-electron lasers XFEL 3D printing Evaluation Study MHz X-ray microscopy Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S. X-ray free-electron laser X-ray imaging X-ray phase contrast imaging X-ray powder diffraction XFELs anthracene derivatives crystal splitter fast 3D imaging flat-field correction image processing indirect MHz X-ray detector instrumentation liquid sample delivery machine vision algorithms megahertz pump and probe sources megahertz sampling microfluidic devices multi-projection nanocrystal