Figure 1

Schematic drawing of the THz-SAXS experiment on protein solutions. The monochromatic X-ray beam (purple arrow) is scattered from the protein solution (blue) flown through a microfluidic cell. Perpendicular to the X-ray beam path and to the flow direction, the solution is irradiated with THz-radiation. THz source I provides the exposure from one side (light green), while source II allows irradiation from both sides (dark green). Two-dimensional SAXS patterns are recorded by a PILATUS 6 M detector (zoom to the central part of the 2D detector image is shown).