Journal Article serial crystallography Research Support, Non-U.S. Gov't SFX serial femtosecond crystallography Research Support, U.S. Gov't, Non-P.H.S. free-electron laser macromolecular crystallography protein crystallography FEL Ferredoxins Hemeproteins MBA Metalloproteins QHB8T06IDK SSX Silicon Compounds X-ray automation beamline catcher data processing fixed target sample delivery high-viscosity extrusion high-viscosity injectors injection metalloprotein micro-focus multiplexing nanocrystallography