Author: Reynet, D.
Paper Title Page
WE1A03 The Superconducting Radio-Frequency Linear Accelerator Components for the European Spallation Source: First Test Results 651
 
  • C. Darve, N. Elias, F. Schlander
    ESS, Lund, Sweden
  • C. Arcambal, P. Bosland, E. Cenni, G. Devanz
    CEA/IRFU, Gif-sur-Yvette, France
  • S. Bousson, P. Duthil, G. Olivier, G. Olry, D. Reynet
    IPN, Orsay, France
  • G. Costanza
    Lund University, Lund, Sweden
  • H. Li, R.J.M.Y. Ruber, R. Santiago Kern
    Uppsala University, Uppsala, Sweden
  • F. Peauger
    CEA/DSM/IRFU, France
 
  The European Spallation Source requires a pulsed Linac with an average beam power on the target of 5MW which is about five times higher than the most powerful spallation source in operation today. Over 97% of the acceleration occurs in superconducting cavities. ESS will be the first accelerator to employ double spoke cavities to accelerate beam. Accelerating gradients of 9MV/meter is required in the spoke section. The spoke section will be followed by 36 elliptical 704 MHz cavities with a geometrical beta of 0.67 and elliptical 704 MHz cavities with a geometrical beta of 0.86. Accelerating gradients of 20MV/m is required in the elliptical section. Initial gradient test results will be presented in which results exceed expected requirements.  
slides icon Slides WE1A03 [6.533 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A03  
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THPRC007 Development of 352.2 Mhz Power Coupler Window for R&D Purposes 779
 
  • F. Geslin, M. Chabot, J. Lesrel, D. Reynet
    IPN, Orsay, France
  • Ch.L. Lievin, S. Sierra
    TED, Velizy-Villacoublay, France
 
  IPNO and Thales are conducting power couplers research and development. This paper present a new window design that fulfills European Spallation Source (ESS) requirements (400 kW RF peak power). The results of electromagnetic, thermal, thermo-mechanical, multipacting simulations and the consequences of the new ceramic window of power coupler will be reported. The multipacting simulations were performed with Musicc3D, software developed by IPNO. The new design overcome ceramic's weakness in tension and allows stronger constraints in the power coupler window.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THPRC007  
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