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PubMed · 14960785

Pinhole interferometry with coherent hard X-rays.

Wolfram Leitenberger·Horst Wendrock·Lothar Bischoff·Timm Weitkamp
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Abstract

This paper discusses the experimental realisation of two types of X-ray interferometer based on pinhole diffraction. In both interferometers the beam splitter was a thin metal foil containing micrometer pinholes to divide the incident X-ray wave into two coherent waves. The interference pattern was studied using an energy-dispersive detector to simultaneously investigate in a large spectral range the diffraction properties of the white synchrotron radiation. For a highly absorbing pinhole mask the interference fringes from the classical Young's double-pinhole experiment were recorded and the degree of coherence of X-rays could be determined. In the case of low absorption of the metal foil at higher X-ray energies (>15 keV) the interference pattern of a point diffraction interferometer was observed using the same set-up. The spectral refraction index of the metal foil was determined.

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Equipment DesignEquipment Failure AnalysisFeasibility StudiesInterferometryRadiometrySensitivity and SpecificitySynchrotronsX-Ray DiffractionX-RaysEvaluation StudyJournal ArticleResearch Support, Non-U.S. Gov't

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Wolfram Leitenberger, Horst Wendrock, Lothar Bischoff, Timm Weitkamp. 2004-02-12. Pinhole interferometry with coherent hard X-rays.. https://doi.org/10.1107/s0909049503029169

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