During the ECFA LC2013 workshop that took place a the end of May at DESY in Hamburg, the LC management, civil engineering and machine-detector interface experts visited the tunnel of the future European X-Ray Free-Electron Laser XFEL – a week before construction was officially finished. DESY and the European XFEL celebrated the completion of the construction work with a ceremony, atmospheric lights and music in the new tunnel.
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Looks like a tunnel. Make it zero gravity going in one direction