%0 Conference Paper
%A Schütte, Maximilian
%A Eichler, Annika
%A Lamb, Thorsten
%A Rybnikov, Vladimir
%A Schlarb, Holger
%A Wilksen, Tim
%T Subsystem Level Data Acquisition for the Optical Synchronization System at European XFEL
%I JACoW Publishing, Geneva, Switzerland
%M PUBDB-2021-04890
%P 3
%D 2021
%< Proceedings of the 12th International Particle Accelerator Conference, IPAC2021, Campinas, SP, Brazil
%X The optical synchronization system for the European X-Ray Free-Electron Laser provides sub-10 femtosecond timing precision * for the accelerator subsystems and experiments. This is achieved by phase locking a mode-locked laser oscillator to the main RF reference and distributing the optical pulse train carrying the time information via actively propagation-time stabilized optical fibers to multiple end-stations. Making up roughly one percent of the entire European XFEL, it is the first subsystem to receive a large-scale data acquisition system [2] for storing not just hand-selected information, but in fact all diagnostic, monitoring, and configuration data relevant to the optical synchronization available from the distributed control system infrastructure. A minimum of 100 TB per year may be stored in a persistent archive for long-term health monitoring and data mining whereas excess data is stored in a short-term ring buffer for high-resolution fault analysis and feature extraction algorithm development. This paper describes scale, challenges and first experiences from the optical synchronization data acquisition system.
%B 12th International Particle Accelerator Conference
%C 24 May 2021 - 28 May 2021, Campinas (Brazil)
Y2 24 May 2021 - 28 May 2021
M2 Campinas, Brazil
%K Accelerator Physics (Other)
%K MC6: Beam Instrumentation, Controls, Feedback and Operational Aspects (Other)
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%R 10.18429/JACOW-IPAC2021-TUPAB291
%U https://bib-pubdb1.desy.de/record/472171