Achromatic x-ray focusing using diffractive and refractive elements

Marion Umbach; Vladimir Nazmov; Markus Simon; Arndt Last; Volker Saile

doi:10.1117/12.797782

27 September 2008 Achromatic x-ray focusing using diffractive and refractive elements

Marion Umbach, Vladimir Nazmov, Markus Simon, Arndt Last, Volker Saile

Proceedings Volume 7100, Optical Design and Engineering III; 71001U (2008) https://doi.org/10.1117/12.797782
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

We develop a new type of X-ray lens system which is achromatic in a limited energy range. For such achromats we combine different types of refractive and diffractive elements. For example, Fresnel zone plates and planar parabolic concave SU-8 lenses are combined with lenses with a biconvex parabolic shape and with Fresnel lenses, respectively. We present numerical results from a theoretical study of such optical systems. We determine the focal spot size for an energy range of about E ± ΔE with ΔE/E ≈ 17%. Amongst other results we find that, compared with conventional lens systems, the spot size can be reduced by several tens of percent by using such achromatic lens systems.

Citation Download Citation

Marion Umbach, Vladimir Nazmov, Markus Simon, Arndt Last, and Volker Saile "Achromatic x-ray focusing using diffractive and refractive elements", Proc. SPIE 7100, Optical Design and Engineering III, 71001U (27 September 2008); https://doi.org/10.1117/12.797782

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