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DOE OSTI · 1352631

Three Dimensional Variable-Wavelength X-Ray Bragg Coherent Diffraction Imaging

Cha, W.·Ulvestad, A.·Allain, M.·Chamard, V.·Harder, R.·Leake, S. J.·Maser, J.·Fuoss, P. H.·Hruszkewycz, S. O.
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Abstract

Here, we present and demonstrate a formalism by which three-dimensional (3D) Bragg x-ray coherent diffraction imaging (BCDI) can be implemented without moving the sample by scanning the energy of the incident x-ray beam. This capability is made possible by introducing a 3D Fourier transform that accounts for x-ray wavelength variability. We also demonstrate the approach by inverting coherent Bragg diffraction patterns from a gold nanocrystal measured with an x-ray energy scan. Furthermore, variable-wavelength BCDI will expand the breadth of feasible in situ 3D strain imaging experiments towards more diverse materials environments, especially where sample manipulation is difficult.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS

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BibTeXRIS

Cha, W., Ulvestad, A., Allain, M., Chamard, V., Harder, R., Leake, S. J., Maser, J., Fuoss, P. H., Hruszkewycz, S. O.. 2016-11-23. Three Dimensional Variable-Wavelength X-Ray Bragg Coherent Diffraction Imaging. https://doi.org/10.1103/physrevlett.117.225501

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