Koninklijke Philips Corporation N.v.

Thomas Detlef Istel

Ewald Roessl

Gerhard Martens

Heiner Daerr

Udo Van Stevendaal

An X-ray imaging method includes acquiring a differential phase contrast imaging X-ray scan with an X-ray imaging system having an X-ray source, an X-ray detector, and a grating arrangement having a source grating, a phase grating and an analyzer grating. The source grating is misaligned in respect to an interferometer such that moir&#xe9; fringes are detectable in the plane of the detector. A translation signal is computed for translating the source grating for achieving a predetermined moir&#xe9; pattern. The positioning of the source grating is adjusted in an X-ray projection direction based on the translation signal such that at least 2 pi of phase changes are covered with the Moir&#xe9; fringes over the width of the detector. And a further differential phase contrast imaging X-ray scan is acquired.

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Hamburg, Germany

Thomas Detlef Istel