Journal article
Diffractive imaging using partially coherent X rays
LW Whitehead, GJ Williams, HM Quiney, DJ Vine, RA Dilanian, S Flewett, KA Nugent, AG Peele, E Balaur, I McNulty
Physical Review Letters | AMER PHYSICAL SOC | Published : 2009
Abstract
The measured spatial coherence characteristics of the illumination used in a diffractive imaging experiment are incorporated in an algorithm that reconstructs the complex transmission function of an object from experimental x-ray diffraction data using 1.4 keV x rays. Conventional coherent diffractive imaging, which assumes full spatial coherence, is a limiting case of our approach. Even in cases in which the deviation from full spatial coherence is small, we demonstrate a significant improvement in the quality of wave field reconstructions. Our formulation is applicable to x-ray and electron diffraction imaging techniques provided that the spatial coherence properties of the illumination ar..
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Awarded by Office of Science, Office of Basic Energy Sciences
Funding Acknowledgements
L. W. acknowledges the support of a Melbourne Postgraduate Research grant. The authors acknowledge the support of the Australian Research Council through its Centres and Federation programs. The authors thank Dushyant Kumar, Grant Baumgardner, and Ray Conley for fabricating the Young's pinhole set. The use of the Advanced Photon Source is supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC0206CH11357.