Post-doc for Bragg diffraction imaging, characterization of defects within crystals for applications

The ESRF has developed a series of Bragg diffraction imaging techniques for the visualization and characterization of defects in crystals. Two of them (“white beam topography” and “rocking curve imaging”) are implemented at the BM05 beamline. The aim of this work is to help enhancing the capabilities of these techniques, which provide results with a spatial resolution in the µm range and an angular resolution in the µradian range, to study the new and improved crystalline materials that are grown for applications. A first, important, task will focus on diamond crystals designed to be used as an undulator for high energy range beam. The retained candidate will benefit from a practical and theoretical training, and will participate in the experiments and in the interpretation of the results, together with the ESRF BM05 small team, and in close collaboration with a number of scientific European teams working in the field of crystal growth, semiconductors for electronics and optoelectronics, or crystals used for mechanical applications. Whereas some of the results will constitute industrial secrets and will remain confidential, most of results can be (and will be) published. 

Further information may be obtained from Thu-Nhi Tran Caliste (tel.: +33 (0)4 76 88 23 92, email: thu-nhi.tran-thi@esrf.fr).