The European Synchrotron Radiation Facility is a source of the third generation type. It was the first ever synchrotron of this type to be built. Construction was completed in 1991. It is the most powerful and stable source of high energy X-rays in Europe.
The Accelerator and Source division is responsible for the operation, development and maintenance of the accelerator complex. Its main preoccupation is to deliver a high quality, stable beam to the scientists working at the ESRF.