Author: Moeller, W.-D.     [Möller, W.-D.]
Paper Title Page
MOPB013 European XFEL Input Coupler Experiences and Challenges in a Test Field 78
 
  • F. Hoffmann, D. Kostin, W.-D. Möller, D. Reschke, M. Wiencek
    DESY, Hamburg, Germany
 
  102 European XFEL accelerating modules with 816 superconducting cavities and main input RF power couplers were assembled and then tested at DESY prior to installation in the European XFEL tunnel. In the Accelerating Module Test Facility (AMTF) warm and cold RF tests were done. The test results went directly to the operational setup for the LINAC. Main input couplers did present several problems during the tests, resulting in some minor coupler design changes as well as in a few repair actions. The experience got from the said testing operation is worth to be shared and is presented here together with a discussion.  
poster icon Poster MOPB013 [0.648 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB013  
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MOPB015 Accelerator Module Repair for the European XFEL Installation 82
 
  • E. Vogel, S. Barbanotti, F. Hoffmann, K. Jensch, D. Kostin, L. Lilje, W.-D. Möller, M. Schmökel, H. Weise
    DESY, Hamburg, Germany
  • S. Berry, O. Napoly
    CEA/DSM/IRFU, France
  • M. Sienkiewicz, J. Świerbleski, M. Wiencek
    IFJ-PAN, Kraków, Poland
 
  Repair actions of different extent have been performed at 61 modules of the 100 accelerating series modules for the European XFEL to qualify them for the tunnel installation. Four modules could not be repaired in time. CEA Saclay managed to perform three major repairs in parallel to the series module integration, the residual repair actions took place at DESY Hamburg. In this paper we will give an overview on the various technical problems which required being fixed before the tunnel installation and on the repair actions performed.  
poster icon Poster MOPB015 [9.354 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-MOPB015  
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