Author: Napieralski, A.
Paper Title Page
WEPME009 Recent Developments of the European XFEL LLRF System 2941
 
  • Ch. Schmidt, G. Ayvazyan, V. Ayvazyan, J. Branlard, Ł. Butkowski, M.K. Grecki, M. Hoffmann, T. Jeżyński, F. Ludwig, U. Mavrič, S. Pfeiffer, H. Schlarb, H.C. Weddig, B.Y. Yang
    DESY, Hamburg, Germany
  • P. Barmuta, S. Bou Habib, K. Czuba, M. Grzegrzółka, E. Janas, J. Piekarski, I. Rutkowski, D. Sikora, Ł. Zembala, M. Żukociński
    Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
  • W. Cichalewski, K. Gnidzińska, W. Jałmużna, D.R. Makowski, A. Mielczarek, A. Napieralski, P. Perek, A. Piotrowski, T. Pożniak, K.P. Przygoda
    TUL-DMCS, Łódź, Poland
  • S. Korolczuk, I.M. Kudla, J. Szewiński
    NCBJ, Świerk/Otwock, Poland
  • K. Oliwa, W. Wierba
    IFJ-PAN, Kraków, Poland
 
  The Eu­ro­pean XFEL is com­prised of more than 800 TESLA-type su­per-con­duct­ing ac­cel­er­a­tor cav­i­ties which are dri­ven by 25 high-power multi-beam kly­strons. For re­li­able, re­pro­ducible and main­tain­able op­er­a­tion of linac, the LLRF sys­tem will process more than 3000 RF chan­nels. Be­side the large num­ber of RF chan­nels to be processed, sta­ble FEL op­er­a­tion de­mands field sta­bil­ity bet­ter than 0.010deg in phase and 0.01% in am­pli­tude. To cope with these chal­lenges the LLRF sys­tem is de­vel­oped on MTCA.4 plat­form. In this paper, we will give an up­date of the lat­est elec­tron­ics de­vel­op­ments, ad­vances in the feed­back con­troller al­go­rithm and mea­sure­ment re­sults at FLASH.