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Proceedings Paper

Aberrations in compound refractive lens systems: analytical and numerical calculations
Author(s): Markus Osterhoff; Carsten Detlefs; Claudio Ferrero
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Paper Abstract

Hard x-ray beams can be focused using refractive lenses, but depending on energy, a large number N of individual lenses stacked in a row is needed. Such a stack can be either composed of single lenses in cartridges, or lithographically fabricated lenses in a row. With N in the three-digit regime, the question arises which tolerances on lens alignment and shape have to be met not to disturb the focus. Here we use analytical and numerical calculations based on a Zernike polynomial expansion to give such error bounds for typical set-ups.

Paper Details

Date Published: 23 August 2017
PDF: 7 pages
Proc. SPIE 10388, Advances in Computational Methods for X-Ray Optics IV, 103880L (23 August 2017); doi: 10.1117/12.2275535
Show Author Affiliations
Markus Osterhoff, Georg-August-Univ. Göttingen (Germany)
Carsten Detlefs, ESRF - The European Synchrotron (France)
Claudio Ferrero, ESRF - The European Synchrotron (France)

Published in SPIE Proceedings Vol. 10388:
Advances in Computational Methods for X-Ray Optics IV
Oleg Chubar; Kawal Sawhney, Editor(s)

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