Details

Autor(en) / Beteiligte

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

Titel

Diffractive imaging using partially coherent x rays

Ist Teil von

• Physical review letters, 2009-12, Vol.103 (24), p.243902-243902, Article 243902

Ort / Verlag

United States

Erscheinungsjahr

2009

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.