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. 2011 Aug 8;1:57. doi: 10.1038/srep00057

Figure 2. Diamond Fresnel zone plates.

Figure 2

(a) Overview of FZPs etched into a 1.5 mm diameter diamond membrane. The 500 µm diameter of the central FZP is matched to the beam size at the LCLS-XPP end station. (b) Central rings etched 2.1 µm deep. (c) 100 nm wide outermost zones.