We present results that demonstrate the proof of principle of a soft-x-ray reflection imaging microscope in the Schwarzschild configuration. A soft-x-ray laser operating at 18.2 nm was used as the x-ray source. Mo/Si multilayer mirrors with a normal-incidence reflectivity of-20% per surface at 18.2-nm wavelength were used in the Schwarzschild objective.

SUMMARYThis article describes the scanning transmission X‐ray microscope operated at the National Synchroton Light Source. The application of the instrument to elemental analysis is detailed. In particular, qualitative results on the calcium distribution in human skull tissue are presented.

SUMMARY A soft X‐ray laser of output energy 1–3 mJ at 18–2 nm was used to record high resolution images of biological specimens. The contact images were recorded on photoresist which was later viewed in a scanning electron microscope. A composite optical X‐ray laser microscope ‘COXRALM’ of novel design is also described.