Objectif The small angular size of the X-ray sources at modern synchrotron radiation facilities like the ESRF imply a high spatial coherence of the photon beams. This was recently shown to make the imaging of phase objects through Fresnel diffraction straightforward, with a very simple experimental setup. This gives the possibility of imaging objects involving negligible absorption of hard X-rays but appreciable variations in optical path length due to thickness or compositional variations. This first experiments performed at the ESRF on organic (bones, plants) or inorganic (test materials with inclusions, holes, cracks) samples appear very promising. I intend 1) to further investigate the capabilities of this new technique, 2) to extend it to phase-contrast tomography, and 3) to apply these techniques to the investigation of the influence of precipitates and pores on the mechanical properties of industrial materials. Champ scientifique natural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programme(s) FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998 Thème(s) 0302 - Post-doctoral research training grants TP15 - Instrumentation and Applied Physics Appel à propositions Data not available Régime de financement RGI - Research grants (individual fellowships) Coordinateur European Synchrotron Radiation Facility Contribution de l’UE Aucune donnée Adresse 56,Avenue des Martyrs 38043 Grenoble France Voir sur la carte Coût total Aucune donnée Participants (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire Not available Espagne Contribution de l’UE Aucune donnée Adresse Voir sur la carte Coût total Aucune donnée