Author: Chauveau, A.C.
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TUPAF068 Functional Integration of the RFQ in the ESS Systems 890
  • J.S. Schmidt, E. Bargalló, T. Fay, G. Hulla, B. Lagoguez, R. Montaño, E. Sargsyan, S. Scolari, H. Spoelstra
    ESS, Lund, Sweden
  • A.C. Chauveau, M. Desmons, O. Piquet
    CEA/IRFU, Gif-sur-Yvette, France
  • A.J. Johansson
    Lund University, Lund, Sweden
  • W. Ledda
    Vitrociset s.p.a, Roma, Italy
  The 352 MHz Radio Frequency Quadrupole (RFQ) for the European Spallation Source ERIC (ESS) will be delivered during 2018. After delivery, installation and tuning of the cavity, the high power RF conditioning will be performed. At this point all the different systems that are needed to condition and operate the RFQ have to be in place and operational. This paper will give an overview of the system analysis that has been performed for the RFQ. The RFQ requirements for the RF system, including the RF distribution system (RFDS), the Low Level RF (LLRF) and the local RF protection system (RFLPS) will be presented. In addition, the paper covers the system integration of the structure in the ESS control and vacuum systems as well as the outcome of a machine protection analysis.  
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WEPMF004 The Saclay Test Stand for Conditioning the ESS RFQ Power Couplers at High RF Power 2375
  • N. Misiara, A.C. Chauveau, D. Chirpaz-Cerbat, P. Daniel-Thomas, M. Lacroix, L. Maurice
    CEA/IRFU, Gif-sur-Yvette, France
  • M. Desmons, A. Dubois, A. Gaget, L. Napoly, M. Oublaid, G. Perreu, O. Piquet, B. Pottin, Y. Sauce
    CEA/DRF/IRFU, Gif-sur-Yvette, France
  The RF power coupler system for the RFQ of the ESS LINAC will feed 1.6 MW peak power through two coaxial loop couplers for a 352.21 MHz operation at the expected duty cycle. A specific test stand has been designed to condition the power couplers, and test the different auxiliary components in the nominal conditions of the RFQ. The power couplers were successfully assembled, installed and instrumented on the test cavity. This paper presents the general layout of the test stand, the installation and preparation of the power couplers for their conditioning at high RF power up to the ESS nominal conditions.  
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