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Poster communications

The European XFEL Beam Position Monitor System

Abstract : The European XFEL is an X-ray free electron laser user facility that is currently being built in Hamburg by an international consortium. The electron BPM system of the XFEL is developed by a collaboration of PSI, DESY, and CEA/Saclay/Irfu. Cavity BPMs will be used in all parts of the E-XFEL where highest resolution and lowest drift is required, e.g. in the undulators and some locations in the beam transfer lines. In the cryostats of the superconducting 17.5GeV main linac, 2/3rds of the BPMs will be buttons, while 1/3rd will be re-entrant cavities that promise higher resolution than buttons at lowbunch charges. The transfer lines will also be equipped with cost-efficient button BPMs. The BPM electronics is based on a modular system concept, with a common FPGA-based digital back-end design for all BPMs and pickup-specific analog RF front-ends. This paper introduces the design concepts and reports on the project status and measurement results of BPM pickup and electronics prototypes.
Document type :
Poster communications
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Contributor : Sophie Heurteau <>
Submitted on : Tuesday, June 29, 2010 - 3:14:39 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:31 PM


  • HAL Id : in2p3-00496037, version 1



B. Keil, R. Baldinger, R. Kramert, G. Marinkovic, P. Pollet, et al.. The European XFEL Beam Position Monitor System. 1st International Particle Accelerator Conference (IPAC'10), May 2010, Kyoto, Japan. ⟨in2p3-00496037⟩



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