The X-Gamma skills center brings together all scientific and computing equipment linked to the use of X-rays and Mössbauer spectroscopy.
15 X-ray diffractometers with different configurations whose complementarity has been optimized are available to help characterize materials in any form including:
- polycrystalline (θ/θ and θ/2θ geometries)
- thin films (grazing incidence and 4 Euler's Circles)
- monocrystalline (Laue chamber and 4 Kappa Circles)
- polymer (SAXS/WAXS)
Temperature studies can be run in θ/θ geometry for pulverulent samples and in Eulerian geometry for anisotropic samples (massive or thin films).
Temperature measurements from Nitrogen liquid temperature up to 1200°C can be performed under controlled atmospheres (inert gas, humidity, vacuum, oxydic/reductive atmosphere) can be taken in a θ/θ configuration. Depending on the diffractometers differents wavelength are available ie Cr, Co, Cu, or Mo.
Mössbauer spectroscopy is a technique for the characterization of materials which is very effective and easy to use in a laboratory context. This non-destructive technique can be used to obtain information concerning:
- the valence of the resonant element (isomeric effect)
- the geometry of its environment (quadrupole effect)
- hyperfine magnetic fields
3 Mössbauer sources are available:
The members of the X-GAMMA plateform currently work in two different premises - one at the Artem campus in Nancy and the other at the Sciences and Technologies Faculty in Vandœuvre-les-Nancy.
An X-ray fluorescence spectrometer at the Metz site is also available for use.
The team is composed of 5 permanent staffs.
Head of Skills Centre: Pascal BOULET