Diffractive imaging using partially coherent X rays

L. W. Whitehead, G. J. Williams, H. M. Quiney, D. J. Vine, R. A. Dilanian, S. Flewett, K. A. Nugent, A. G. Peele, E. Balaur, I. McNulty

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

129 Citas (Scopus)

Resumen

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 are known or can be measured.

Idioma originalInglés
Número de artículo243902
PublicaciónPhysical Review Letters
Volumen103
N.º24
DOI
EstadoPublicada - 11 dic. 2009
Publicado de forma externa

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