Abstract

First, an improved x-ray microscope is described which is installed at the BESSY electron storage ring in Berlin. The x-ray optical setup consists of an x-ray condenser zone plate and a high resolution microzone plate. Both types of zone plate are germanium phase zone plates. They are produced in our institute by ultraviolet laser lithography and electron lithography with zone widths down to 30 nm. X-ray microscopy studies of biological specimens in their natural state (chromatin structures of chromosomes, cytoskeleton structures, etc.) are performed with this microscope with 2.4-nm radiation.

© 1991 Optical Society of America