J. Phys. IV France
Volume 104, March 2003
Page(s) 115 - 119

J. Phys. IV France
104 (2003) 115
DOI: 10.1051/jp4:200300041

Table-top X-ray microscopy : Sources, optics and applications

H.M. Hertz1, G.A. Johansson1, H. Stollberg1, J. de Groot1, O. Hemberg1, A. Hotmberg1, S. Rehbein1, P. Jansson1, F. Eriksson2 and J. Birch2

1  Biomedical and X-Ray Physics, Royal Institute of Technology (SCFAB), 10691 Stockholm, Sweden
2  Department of Physics (IFM), Linköping University, 58183 Linköping, Sweden

We have developed the first operative compact sub-visible-resolution x-ray microscope for the waterwindow région ( $\lambda= 2.3-4.4$ nm). The microscope is based on a 100 Hz liquid-jet-target laser-plasma x-ray source, normal-incidence multilayer condenser optics, diffractive zone plate optics and CCD detection. In the present article we emphasize the system's aspects and summarize the recent progress on the components, all aiming at the reduction of the exposure time of a few seconds, i.e., similar to bending-magnet based microscopes. This primarily includes improved laser-plasma source, improved condenser optics using Cr/Sc multilayers, and improved image handling capability using wavelet algorithms. Such compact short-exposure time microscopes would significantly increase the applicability of the technology.

© EDP Sciences 2003