Fabrication of 200 nm period hard X-ray phase gratings.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 24845537.
- Also identified by DOI 10.1021/nl5009713 and PMC identifier 4055044.
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Abstract
Far field X-ray grating interferometry achieves extraordinary phase sensitivity in imaging weakly absorbing samples, provided that the grating period is within the transverse coherence length of the X-ray source. Here we describe a cost-efficient process to fabricate large area, 100 nm half-pitch hard X-ray phase gratings with an aspect ratio of 32. The nanometric gratings are suitable for ordinary compact X-ray sources having low spatial coherence, as demonstrated by X-ray diffraction experiments.
Medical subject headings
- Nanostructures