Differential x-ray phase contrast imaging using a shearing interferometer
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- 15 October 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (17), 3287-3289
- https://doi.org/10.1063/1.1516611
Abstract
An x-ray interferometer has been developed that uses two transmission phase gratings to analyze wave front distortions in the hard x-ray range. The interferometer is insensitive to mechanical drift and vibrations, and it is tunable over a wide range of photon energies. This setup was used for differential phase contrast imaging of low-absorbing test objects. We obtained micrographs with moiré fringes of good visibility, which revealed the local phase shift gradient caused by the objects. A comparison with numerically simulated images indicates that quantitative analysis of unknown phase objects is possible.This publication has 11 references indexed in Scilit:
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