Figure 1
Schematics of the setups used for (a) scanning SAXS and (b) in-line holography using the GINIX endstation at the P10 coherence application beamline at the PETRA III storage ring, DESY, Hamburg (Kalbfleisch et al., 2011; Salditt et al., 2015). (a) The X-rays are focused by a set of Kirkpatrick–Baez (KB) mirrors prior to being scattered from the sample. The sample is raster scanned in the y–z plane and at each scanning position a scattering pattern is recorded by a single-photon-counting pixelated detector. The dashed purple lines illustrate the relationship between the scattering angle 2θ and the momentum transfer vector q. (b) The KB-focused beam is coupled into a waveguide which acts as a quasi point-source creating a diverging wavefront. The sample is placed at a series of defocused positions X1 and full-field holograms are recorded at each distance with a sCMOS imaging camera located at a distance X2 behind the sample. |