Overview of the RF Synchronization System for the European XFEL

Krzysztof Marek Czuba , Dominik Sikora , Łukasz Zembala , J. Branlard , Frank Ludwig , H. Schlarb , Henning Weddig


An important requirement for the European XFEL RF system is to assure a precise RF field stability within the accelerating cavities. The required amplitude and phase stability equals dA/A < 3E-5, dI <0.01 deg in the injector and dA/A <1E-4, dI <0.1 deg in the main LINAC at an RF frequency of 1.3GHz . To fulfil such requirements for the 3.4 km long facility is a very challenging task. Thousands of electronic and RF devices must be precisely phase synchronized by means of harmonic RF signals. We describe the proposed architecture of the RF Master Oscillator and the Phase Reference Distribution System designed to assure high precision and reliability. A system of RF cable based interferometers supported by femtosecond-stable optical links will be used to distribute RF reference signals with required short and long-term phase stability. We also present test results of prototype devices performed to validate our concept.
Author Krzysztof Marek Czuba (FEIT / PE)
Krzysztof Marek Czuba,,
- The Institute of Electronic Systems
, Dominik Sikora (FEIT / PE)
Dominik Sikora,,
- The Institute of Electronic Systems
, Łukasz Zembala (FEIT / PE)
Łukasz Zembala,,
- The Institute of Electronic Systems
, J. Branlard - [Deutsche Elektronen-Synchrotron]
J. Branlard,,
, Frank Ludwig - [Deutsche Elektronen-Synchrotron]
Frank Ludwig,,
, H. Schlarb - [Deutsche Elektronen-Synchrotron]
H. Schlarb,,
, Henning Weddig - [Deutsche Elektronen-Synchrotron]
Henning Weddig,,
Publication size in sheets0.3
Book Zhimin Dai, Petit-Jean-Genaz Christine, Schaa Volker RW , Zhang Chuang (eds.): Proceedings of the 4th International Particle Accelerator Conference, 2013, Geneva, Switzerland: , JACoW — cc Creative Commons Attribution, ISBN 978-3-95450-122-9, 3999 p.
URL http://inspirehep.net/record/1337220/files/wepme035.pdf
Languageen angielski
Score (nominal)15
Score sourceconferenceIndex
ScoreMinisterial score = 10.0, 18-09-2020, BookChapterMatConfByIndicator
Ministerial score (2013-2016) = 15.0, 18-09-2020, BookChapterMatConfByIndicator
Publication indicators WoS Citations = 10; GS Citations = 16.0; Scopus Citations = 6
Citation count*16 (2020-08-28)
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