Characterization of spatial coherence of synchrotron radiation with non-redundant arrays of apertures.
- Skopintsev, P.
- Singer, A.
- Bach, J.
- Müller, L.
- Beyersdorff, B.
- Schleitzer, S.
- Gorobtsov, O.
- Shabalin, A.
- Kurta, R.
- Dzhigaev, D.
- Yefanov, O.
- Glaser, L.
- Sakdinawat, A.
- Grübel, G.
- Frömter, R.
- Oepen, H.
- Viefhaus, J.
- Vartanyants, I.
DOIAbstract
A method to characterize the spatial coherence of soft X-ray radiation from a single diffraction pattern is presented. The technique is based on scattering from non-redundant arrays (NRAs) of slits and records the degree of spatial coherence at several relative separations from 1 to 15 µm, simultaneously. Using NRAs the spatial coherence of the X-ray beam at the XUV X-ray beamline P04 of the PETRA III synchrotron storage ring was measured as a function of different beam parameters. To verify the results obtained with the NRAs, additional Young's double-pinhole experiments were conducted and showed good agreement
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