Figure 3

Schematics of (a) micro-CT and (b) nano-CT as synchrotron radiation multiscale X-ray CT available at beamline 20XU of SPring-832. In micro-CT, a quasi-parallel beam transmitted through the rotating sample is captured with an image detector installed immediately behind the sample. Nano-CT comprises a hollow-cone beam illumination system with a condenser zone plate (CZP), sample stages, a Fresnel zone plate (FZP) as an objective, and an image detector installed in a separate experimental hutch located 160 m away.