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Proceedings Paper

Beryllium parabolic refractive x-ray lenses
Author(s): Bruno Lengeler; Christian G. Schroer; Marion Kuhlmann; Boris Benner; Til Florian Gunzler; Olga Kurapova; Federico Zontone; Anatoly A. Snigirev; Irina I. Snigireva
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Paper Abstract

Parabolic refractive x-ray lenses are novel optical components for the hard x-ray range from about 5 keV to about 120 keV. They focus in both directions. They are compact, robust, and easy to align and to operate. They can be used like glass lenses are used for visible light, the main difference being that the numerical aperture N A is much smaller than 1 (of order 10-4 to 10-3). Their main applications are in micro- and nanofocusing, in imaging by absorption and phase contrast. In combination with tomography they allow for 3-dimensional imaging of opaque media with sub-micrometer resolution. Finally, they can be used in speckle spectroscopy by means of coherent x-ray scattering. Beryllium as lens material strongly enhances the transmission and the field of view as compared to aluminium. With increased N A the lateral resolution is also considerably improved with Be lenses. References to a number of applications are given.

Paper Details

Date Published: 4 November 2004
PDF: 9 pages
Proc. SPIE 5539, Design and Microfabrication of Novel X-Ray Optics II, (4 November 2004); doi: 10.1117/12.559743
Show Author Affiliations
Bruno Lengeler, Aachen Univ. (Germany)
Christian G. Schroer, Aachen Univ. (Germany)
Deutsches Elektronen-Synchrotron (Germany)
Marion Kuhlmann, Aachen Univ. (Germany)
Boris Benner, Aachen Univ. (Germany)
Til Florian Gunzler, Aachen Univ. (Germany)
Olga Kurapova, Aachen Univ. (Germany)
Federico Zontone, European Synchrotron Radiation Facility (France)
Anatoly A. Snigirev, European Synchrotron Radiation Facility (France)
Irina I. Snigireva, European Synchrotron Radiation Facility (France)


Published in SPIE Proceedings Vol. 5539:
Design and Microfabrication of Novel X-Ray Optics II
Anatoly A. Snigirev; Derrick C. Mancini, Editor(s)

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