Date:6/11/2012

ze structures in the object, such as fibres, cracks or nanosized pores. In the study now reported in PNAS, wings of a wasp fossilised in amber mostly invisible in previous X-ray investigations of the same specimen were revealed in their full length with the dark-field signal. These results encourage the use of dark-field imaging not only in palaeontology and materials science, but also in the medical field, for example to reveal minuscule cracks in bones or small fibres in soft tissue.

The complementarity of the image signals accessed with grating interferometry and the new simple and fast acquisition procedure make grating interferometry an attractive technique for high-sensitivity imaging in the biomedical field, in materials science and in palaeontology, and possibly also in future hospital CT scanners.

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Contact: Claus Habfast claus.habfast@esrf.fr 0033-666-662-384 European Synchrotron Radiation Facility Source:Eurekalert

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