J. Phys. IV France
Volume 104, March 2003
Page(s) 85 - 90

J. Phys. IV France
104 (2003) 85
DOI: 10.1051/jp4:200300035

The transmission X-ray microscope at BESSY II

P. Guttmann1, B. Niemann2, S. Rehbein2, C. Knöchel2, D. Rudolph2 and G. Schmahl2

1  Georg-August-Universität Göttingen, Institut für Röntgenphysik c/o BESSY, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
2  Georg-August-Universität Göttingen, Institut für Röntgenphysik, Geiststrasse 11, 37073 Göttingen, Germany

The new transmission X-ray microscope (TXM) at BESSY II is the first one using soft X-rays in the water window region at an undulator beamline. For this, the condenser monochromator has been adapted to the highly collimated X-ray beam of the undulator U41. This is done by using a rotating condenser (RK) which can match the numerical aperture of any micro objective zone plate [1]. The actual setup of the TXM is given in this report. Several beam diagnostic instruments have been incorporated into the beamline and the microscope to adjust the optical elements and to study the behaviour of the complete system. The results of the characterization done so far will be presented as well as first images of applications will be shown.

© EDP Sciences 2003