Proceedings ArticleDOI
Fabrication of thick zone plates for multi-kilovolt X-rays
A. Düvel,D. Rudolph,G. Schmahl +2 more
- Vol. 507, Iss: 1, pp 607-614
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TLDR
In this article, phase zone plates for multi-kilovolt X-rays with an outermost zone width of 169-30 nm and aspect ratios up to 177 were generated by a sputtered-sliced technology.Abstract:
Phase zone plates for multi-kilovolt X-rays with an outermost zone width of 169-30 nm and aspect ratios up to 177 were generated by a sputtered-sliced technology The generated lenses of alternating Ni80Cr20 and SiO2 consist of 188–365 layers on borosilicate glass wires and were polished by mechanical and ion processes to a thickness of 3–4 μm without carrier foil The groove efficiency was measured at the ESRF beamline ID 21 up to 38% in first order But small parts of a zone plate show an efficiency of about 10–15%read more
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Hard x-ray nanofocusing by multilayer Laue lenses
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Three-dimensional structured on-chip stacked zone plates for nanoscale X-ray imaging with high efficiency
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Influence of random zone positioning errors on the resolving power of Fresnel zone plates
TL;DR: It is found that random errors significantly decrease the contrast transfer of X-ray microscopes and an upper bound for the mean acceptable variance of the deposition rate is derived.