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Métrologie en ligne de faisceaux et d'optiques X de synchrotrons

Abstract : This thesis presents research and development work on synchrotron X-ray at-wavelength metrology methods. Two approaches for measuring the phase of an X-ray wavefront were studied: the grating-based and the speckle-based methods. The X-ray grating interferometer is the most widespread technique representative of the first category. Its performance and potential in various situations encountered in at-wavelength metrology was investigated. Speckle methods are X-ray phase sensing techniques newly developed during this thesis project. They make use of membranes with small statistical features to modulate the beam wavefront. The different methods were deployed experimentally at the beamlines BM05 of the ESRF and B16 of the Diamond Light Source. Their implementation permitted the characterization of various kinds of optical elements used to manipulate synchrotron X-ray beamsas well as the feasibility study of micro phase contrast imaging using the two methods described above.
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Submitted on : Friday, September 6, 2013 - 3:17:11 PM
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Sébastien Bérujon. Métrologie en ligne de faisceaux et d'optiques X de synchrotrons. Autre [cond-mat.other]. Université de Grenoble, 2013. Français. ⟨NNT : 2013GRENY010⟩. ⟨tel-00859120⟩



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