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@INPROCEEDINGS{Schulz:642301,
      author       = {Schulz, Sebastian and Calendron, Anne-Laure and Czwalinna,
                      Marie Kristin and Felber, Matthias and Grünhagen, Arne and
                      Kozak, Tomasz and Kschuev, Nick and Lamb, Thorsten and
                      Lautenschlager, Björn and Schlarb, Holger and Schütte,
                      Maximilian and Schwickert, David and Zummack, Falco},
      title        = {{L}atest achievements in femtosecond synchronization of
                      large scale facilities},
      publisher    = {JACoW Publishing},
      reportid     = {PUBDB-2025-05472},
      pages        = {3256-3260},
      year         = {2025},
      abstract     = {The laser-based synchronisation systems for the European
                      XFEL and FLASH provide femtosecond-stable timing references
                      for tens of clients along the accelerator and the experiment
                      halls over many kilometres of optical fibre. Recently,
                      benchmarking experiments revealed a point-to-point timing
                      stability with sub-femtosecond rms timing jitter. At the
                      same time geophysical effects like ocean waves and
                      earthquakes do not only affect the performance of the
                      system, but their impact can clearly be identified. To
                      improve the temporal resolution in X-ray/optical pump-probe
                      experiments, additional arrival time monitors for both the
                      electrons and the optical laser pulses are currently being
                      installed, allowing for a posteriori data sorting and
                      eventually active feedbacks. Further, the optical reference
                      oscillators and advanced synchronisation schemes are being
                      developed, resulting in timing jitter on the sub-hundred
                      attoseconds level.},
      month         = {Jun},
      date          = {2025-06-01},
      organization  = {16th International Particle
                       Accelerator Conference, Taipei
                       (Taiwan), 1 Jun 2025 - 6 Jun 2025},
      keywords     = {Accelerator Physics (Other)},
      cin          = {MSK},
      cid          = {I:(DE-H253)MSK-20120731},
      pnm          = {621 - Accelerator Research and Development (POF4-621) / 623
                      - Data Management and Analysis (POF4-623) / 6G13 -
                      Accelerator of European XFEL (POF4-6G13) / 6G2 - FLASH
                      (DESY) (POF4-6G2)},
      pid          = {G:(DE-HGF)POF4-621 / G:(DE-HGF)POF4-623 /
                      G:(DE-HGF)POF4-6G13 / G:(DE-HGF)POF4-6G2},
      experiment   = {EXP:(DE-H253)XFEL(machine)-20150101 /
                      EXP:(DE-H253)FLASH(machine)-20150101 /
                      EXP:(DE-H253)FLASHII(machine)-20150901 /
                      EXP:(DE-H253)F-PL23-20230101},
      typ          = {PUB:(DE-HGF)8},
      doi          = {10.18429/JACOW-IPAC2025-FRZD1},
      url          = {https://bib-pubdb1.desy.de/record/642301},
}