Contribution to a conference proceedings/Contribution to a book

PUBDB-2025-05472

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Latest achievements in femtosecond synchronization of large scale facilities

Schulz, S. (Corresponding author)XFEL.EU*DESY* ; Calendron, A.-L.CFEL*DESY* ; Czwalinna, M. K.DESY* ; Felber, M.DESY* ; Grünhagen, A.DESY* ; Kozak, T.DESY* ; Kschuev, N.DESY* ; Lamb, T.DESY* ; Lautenschlager, B.DESY* ; Schlarb, H.DESY* ; Schütte, M.DESY* ; Schwickert, D.Extern*DESY* ; Zummack, F.DESY*

2025
JACoW Publishing Geneva
ISBN: 978-3-95450-248-6

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Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2025-FRZD1  doi:10.3204/PUBDB-2025-05472

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.

Keyword(s): Accelerator Physics

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Contributing Institute(s):

1. Strahlkontrollen (MSK)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 623 - Data Management and Analysis (POF4-623) (POF4-623)
3. 6G13 - Accelerator of European XFEL (POF4-6G13) (POF4-6G13)
4. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)

Experiment(s):

1. Facility (machine) XFEL
2. Facility (machine) FLASH
3. Facility (machine) FLASH2
4. FLASH2 Beamline FL23 (FLASH2)

Appears in the scientific report 2025

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