Effects of the condenser fractal zone plate in a transmission X-ray microscope

摘要

One of the main benefits of a fractal plate is the formation of a sequence of subsidiary foci when used as a condenser. In order to further demonstrate the reliable use of a fractal zone plate in transmission X-ray microscopy, we studied how a condenser fractal zone plate produces the focal spot in a transmission X-ray microscope layout. We present and discuss the comparison in the X-ray region with a normal condenser zone plate and a numerical simulation that points out that the efficiency of the condenser depends on the structure and the material of the zone plate, and on the energy. This analysis paves a way for foreseen optical applications of modified zone plates in real microscope layouts.