27 September 2013 Multilevel stacked Fresnel zone plate for hard x-rays
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Abstract
Stacking technique of the Fresnel zone plate fabrication with effective multilevel zone structure was considered by means of numerical simulation. It was shown that such approach allows increasing focusing efficiency without essential additional fabrication difficulties since the proposed device is a simple combination of bi-level structures. The conditions, at which layers are acting as a single zone plate, as well as criteria of layer alignment aren’t significantly changed compared with those of bi-level case. The angular sensitivity estimation shows that it allows imaging of objects larger than zone plate diameter.
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Levon Haroutunyan, Karapet Trouni, Armen Kuyumchyan, "Multilevel stacked Fresnel zone plate for hard x-rays", Proc. SPIE 8848, Advances in X-Ray/EUV Optics and Components VIII, 88480Y (27 September 2013); doi: 10.1117/12.2023605; https://doi.org/10.1117/12.2023605
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