European XFEL

Der fertiggestellte Beschleunigertunnel am 20. März 2017 The completed accelerator tunnel on 20 March 2017

European XFEL is a new independent, international research facility and the world’s largest X-ray free-electron laser. It generates X-ray laser light with a brilliance that is a billion times brighter than that of conventional synchrotron X-ray sources. Scientists will be able to map atomic details of viruses, “film” chemical reactions, and study processes such as those deep inside planets. 27,000 X-ray flashes per second will open up unique new opportunities for researchers from across the globe. 12 European XFEL partner countries contribute to the facility. European XFEL also collaborates closely with its main shareholder DESY and other organizations world-wide.

  • User operation started in September 2017, with two instrument stations.
  • Four more instrument stations are currently under construction.

Latest News From European XFEL


Germany, Schenefeld (Hamburg)

Energy: 17.5 GeV (currently: 14 GeV)
Current: 27 μA (currently1.5 μA)
Operational Beamlines: 1 (3 in 2019)
Horizontal emittance: 1.4 mm mrad
Vertical emittance: 1.4 mm mrad

Call for proposals
European XFEL is a facility in early user operation. At present, calls for proposals are announced when suitable conditions and resources are in place.
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View European XFEL on
The catalogue of European Lightsources