The Coherence branch of the I13 beamline in Diamond Light Source is specialized in reciprocal space imaging using Ptychography and Bragg CDT techniques. The experimental hutch is 220 m from the synchrotron source, providing the x-ray beam with intrinsic high spatial coherence. The capacious hutch allows variable sample-detector distance up to l4.5 m. This, in combination with the use of the large area photon counting detector Excalibur, enables fields of view as large as 500 μm, resolution down to tens of nanometers and acquisition rate in excess of l00 Hz. Recently the ptychography scan has been combined to the x-ray fluorescence scan to simultaneously access the chemical and structural information of the sample.

Topics
Crystal lattices, Ptychography, Coherence, X-ray fluorescence, Optical metrology, Synchrotrons
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© 2019 Author(s).
2019
Author(s)