Figure 1
Scanning transmission X-ray microscopy (STXM) images representing (a) transmission, (b) darkfield (scattering, shown on a logarithmic scale), and (c) and (d) differential phase contrast in horizontal and vertical directions, respectively. Each 100 nm wide pixel in these 50 µm × 50 µm images is calculated from a single detector frame and the spatial resolution is limited by the beam size, here 350 nm × 550 nm in the focal plane. |