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Proceedings Paper

Tomography with high resolution
Author(s): Christoph Rau; Timm Weitkamp; Anatoly A. Snigirev; Christian G. Schroer; Boris Benner; Johannes Tuemmler; Til Florian Guenzler; Marion Kuhlmann; Bruno Lengeler; Carl E. Krill III; K. Doebrich; Daniel Michels; Andreas Michels
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Paper Abstract

One major goal in x-ray tomography is to increase the resolution in space and time. For the methods with high temporal resolution we will present pink beam imaging and tomography. Experiments were realised at the ESRF undulator beamline ID22 with hard x-rays in the range from 11 keV to 20 keV. For the tomographic scans the exposure time per image was reduced by one to two orders of magnitude to less than 50 ms per image. The obtained image quality was comparable to that done with monochromatic beam. Further time reducing for a tomographic scan is possible with an improved acquiring and control system. The goal in the future is to realise tomographic scans within a minute with micrometer resolution. In order to achieve in the hard x-ray range sub-micrometer resolution we will show first results of x-ray magnified tomography. Different lens systems are available for this purpose. We obtained with aluminium parabolic compound refractive lenses a resolution of 1 micrometers and expect to overcome this limit hand in hand with the improvement of lens technology.

Paper Details

Date Published: 7 January 2002
PDF: 9 pages
Proc. SPIE 4503, Developments in X-Ray Tomography III, (7 January 2002); doi: 10.1117/12.452849
Show Author Affiliations
Christoph Rau, European Synchrotron Radiation Facility (France)
Timm Weitkamp, European Synchrotron Radiation Facility (France)
Anatoly A. Snigirev, European Synchrotron Radiation Facility (France)
Christian G. Schroer, RWTH Aachen (Germany)
Boris Benner, RWTH Aachen (Germany)
Johannes Tuemmler, RWTH Aachen (Germany)
Til Florian Guenzler, RWTH Aachen (Germany)
Marion Kuhlmann, RWTH Aachen (Germany)
Bruno Lengeler, RWTH Aachen (Germany)
Carl E. Krill III, Univ. des Saarlandes (Germany)
K. Doebrich, Univ. de Saarlandes (Germany)
Daniel Michels, Univ. des. Saarlandes (Germany)
Andreas Michels, Univ. des Saarlandes (Germany)

Published in SPIE Proceedings Vol. 4503:
Developments in X-Ray Tomography III
Ulrich Bonse, Editor(s)

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