The European x-ray free electron laser (European XFEL) is an X-ray research laser facility using a superconducting liner accelerator. 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 Hamburg and Schleswig-Holstein.
<bdi><a href="https://www.wikidata.org/wiki/Q30108329" class="extiw" title="d:Q30108329"><span title="German photographer">Olaf Kosinsky</span></a>
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CC BY-SA 3.0 de
<span class="int-own-work" lang="en">Own work</span>