Author: Moeller, W.-D.     [Möller, W.-D.]
Paper Title Page
THP057
 XFEL Couplers RF Conditioning at LAL  
 
  • W. Kaabi, M. El Khaldi, A. Gallas, D.J.M. Le Pinvidic, C. Magueur, A. Thiebault, A. Verguet
    LAL, Orsay, France
  • W.-D. Möller
    DESY, Hamburg, Germany
  
  In the framework of the French contribution to XFEL project, The LAL has in charge the development, the production and the RF conditioning of 800 power couplers to equip 100 cryo-modules. Thus, LAL’s tasks consist on the industrial monitoring and coupler quality control at two different production sites, in addition to the RF conditioning at LAL. The conditioning process and all the preceding preparation steps are performed in a 70m2 clean room. This infrastructure, its equipment and the RF station are designed to allow the treatment of 8 couplers in the same time, after a ramp-up phase. Clean room process and first conditioning results are presented and discussed.  
 
THP058 Update on the European XFEL RF Power Input Coupler 1047
 
  • D. Kostin, W.-D. Möller
    DESY, Hamburg, Germany
  • W. Kaabi
    LAL, Orsay, France
  
  European XFEL project is being currently realized in Hamburg, Germany. The 1.5 km 17.5 GeV linear electron accelerator is based on the 1.3GHz 9-cell TESLA type SRF cavity. The RF power input coupler design for the E-XFEL is based on well known TTF3 coupler design, used in FLASH accelerator. Coupler design was adapted for the industrial production with some parameters optimisation revisited and simulations done. Results are presented and discussed.  
 
THP059 HOM Coupler Design Adjustment for CW operation of the 1.3 GHz 9-cell TESLA Type SRF Cavity 1051
 
  • D. Kostin, W.-D. Möller, J.K. Sekutowicz
    DESY, Hamburg, Germany
  
  One of the key features of a modern research facility is its versatility, ability to adjust for a multitude of the applications and user needs. A challenge for the coming European XFEL is to become a multipurpose laboratory with a broad applications spectrum. Primarily, the XFEL is a pulsed machine. Encompassing the CW mode would be a worthy addition. CW operation of the 1.3GHz 9-cell TESLA Type SRF Cavity was performed several times at DESY and other Labs successfully. One of the difficulties was a heat load of the High Order Mode (HOM) couplers. To amend this HOM coupler design adjustement is proposed, simulated and modelled. Results are presented and discussed.