Grating interferometer based scanning setup for hard x-ray phase contrast imaging

C. Kottler, F. Pfeiffer, O. Bunk, C. Grünzweig, C. David

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

In x-ray radiography, particularly for technical and industrial applications, a scanning setup is very often favorable when compared to a direct two-dimensional image acquisition. Here, we report on an efficient scanning method for grating based x-ray phase contrast imaging with tube based sources. It uses multiple line detectors for staggered acquisition of the individual phase-stepping images. We find that the total exposure time does not exceed the time needed in an equivalent scanning setup for absorption radiography. Therefore, we conclude that it should be possible to implement the method into a scanning system without affecting the scanning speed or significant increase in cost but with the advantage of providing both the phase contrast and the absorption information at once.

Original languageEnglish
Article number043710
JournalReview of Scientific Instruments
Volume78
Issue number4
DOIs
StatePublished - 2007
Externally publishedYes

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