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Garmendia, N.

Paper Title Page
THP071 Design and Implementation of the Pulsed Digital LLRF System of the ESS-Bilbao Ion Source Test Stand 800
 
  • H. Hassanzadegan, N. Garmendia
    ESS Bilbao, Bilbao
  • F. J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao
  • I. Del Campo
    University of the Basque Country, Bilbao
  • V. Etxebarria
    University of the Basque Country, Faculty of Science and Technology, Bilbao
  
  ESS-Bilbao is the Spanish candidature of the future European Spallation Source. As part of the R&D work at the ESS-Bilbao consortium an ion source test stand is currently under construction at the Zamudio technology park in the Basque country (Spain). The first stage of acceleration and beam focus at the ion source LINAC is carried out by a Radiofrequency Quadrupole system driven by a klystron. In order to control the pulsed RFQ field and the RFQ tuning, a novel digital LLRF system based on IQ modulation/demodulation has been designed by the ESS-Bilbao RF group in collaboration with the Electricity and Electronics Department of the UPV/EHU university. In this paper the RFQ specifications and the LLRF design (amplitude, phase and tuning loops) are presented.