This chapter describes the principles of Fresnel zone-plate (FZP) optics and imaging properties of FZP microscopy in the context of tomographic application. The limitation of zone-plate optics is discussed, and some typical examples of tomographic imaging experiment are shown. A brief introduction to reflective and refractive X-ray optics is presented since they are used for X-ray microscopy in the hard X-ray range relevant for materials research.
Keywords: Fresnel zone-plate microscopy, microtomography, hard X-rays, FZP microscope