Journal Article serial crystallography European XFEL X-ray free-electron lasers instrumentation robust statistics 3D printing Bragg peak finding FEL physics MHz X-ray microscopy MHz XFEL Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. X-ray free-electron laser X-ray phase contrast imaging X-ray scattering XFEL XFEL radiation XFELs aerosols automation bad-pixel masks beam imaging coherent X-ray diffractive imaging crystallography data reduction flat-field correction grating interferometry high-viscosity extrusion