Dresden 2011 – wissenschaftliches Programm

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MI: Fachverband Mikrosonden

MI 5: X-Ray Spectrometry and Tomography

MI 5.7: Vortrag

Dienstag, 15. März 2011, 12:00–12:15, BEY 81

The nano tomography setup at the HZG imaging beamline at PETRA III — •Malte Ogurreck, Astrid Haibel, Felix Beckmann, Fabian Wilde, Martin Müller, and Andreas Schreyer — HZG, Geesthacht, Germany

The new PETRA III synchrotron storage ring at DESY in Hamburg achieves a very high brilliance in combination with an extremely low emittance of 1 nmrad. These unique beam characteristics open new chances for many scientific fields, including several imaging applications. The Imaging Beamline IBL at PETRA III, operated by the HZG (Helmholtz-Zentrum Geesthacht), is dedicated to tomography and provides two endstations, one for micro tomography and one for nano tomography.

Here, we present the setup concept for the nanotomography endstation. The technical specifications will aim for 3D imaging with a spatial resolution of below 100 nm. This nanometer resolution will be achieved by using different combinations of compound refractive lenses as X-ray optics. In addition a microscopic optic for magnifying the images after the converting in visible light will be used, too. The overall setup is designed to be very flexible, which allows also the implementation of other optical elements (e.g. Fresnel zoneplates, KB mirrors) as well as the application of different magnifying techniques like cone-beam tomography or a X-ray microscopy.