SOLEIL is a third generation synchrotron located at the Saclay plateau, in the heart of an environment of very high scientific level. It is open to users and researchers from various scientific fields who use the most powerful techniques to access the geometry of the material, as well as its chemical, magnetic and electrical properties. Both a research laboratory and a very advanced scientific tool, serving thousands of users, SOLEIL has also a double vocation: To provide the most efficient experimental facilities in the world and to develop a leading internal research in synchrotron radiation.