All member nations of the European XFEL project are highlighted in dark purple.
The European X-ray free-electron laser (European XFEL) is an
laser facility commissioned during 2017. The first laser pulses were produced in May 2017
 and the facility started user operation in September 2017.
 The international project with twelve participating countries; nine shareholders (Denmark, France, Germany, Hungary, Poland, Russia, Slovakia, Sweden and Switzerland) and three other partners (Italy, Spain and the United Kingdom)
 is located in the German federal states of
free-electron laser generates high-intensity
electromagnetic radiation by accelerating electrons to
relativistic speeds and directing them through special magnetic structures. The European XFEL is constructed such that the
electrons produce X-ray light in synchronisation, resulting in high-intensity X-ray pulses with the properties of
laser light and at intensities much brighter than those produced by conventional
synchrotron light sources.