Here you will be able to see links to interesting sites. Examples:

European Synchrotron Radiation Facility (ESRF), Grenoble, France
Angströmquelle Karlsruhe (ANKA), Karlsruhe, Germany
Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
Diamond Light Source (Diamond), Oxfordshire, UK
French National Synchrotron Soleil  (Soleil), Paris, France