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A few facts about propagation-based X-ray phase contrast imaging

A few facts about propagation-based X-ray phase contrast imaging
place:

new ANKA seminar room, building 348, 2nd floor

Affiliation:

ESRF, Grenoble, France

Date:

21.09.2015

Inviting person:

Ralf Hofmann, KIT-IPS

Speaker:

Jean-Pierre Guigay

Time:

11:00

The spatial frequency spectrum of a Fresnel diffraction pattern can be expressed in a compact form which is a good starting point for various X-ray phase retrieval methods (Contrast-transfer functions , intensity-transfer equation…). A direct generalization is the concept of “Ambiguity Function”. The partial Talbot effect (periodic objects) and its application to spatial coherence measurements will be discussed.