Author: Ponton, A.
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MOPOY045 ESS Linac Beam Physics Design Update 947
  • M. Eshraqi, H. Danared, R. De Prisco, A. Jansson, Y.I. Levinsen, M. Lindroos, R. Miyamoto, M. Muñoz, A. Ponton
    ESS, Lund, Sweden
  The European Spallation Source, ESS, uses a linear accelerator to bombard the tungsten target with the high intensity protons beam for producing intense beams of neutrons. The nominal average beam power of the linac is 5~MW with a peak beam power at target of 125~MW. This paper focuses on the beam dynamics design of the ESS linac and the diagnostics elements used for the tuning of the lattice and matching between sections.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY045  
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THPMB039 Voltage Error Studies in the ESS RFQ 3320
  • A. Ponton, Y.I. Levinsen, E. Sargsyan
    ESS, Lund, Sweden
  • A.C. France, O. Piquet, B. Pottin
    CEA/IRFU, Gif-sur-Yvette, France
  During the fabrication of an RFQ, deviation from the perfect geometry will occur during assembling, brazing and machining the different parts. These geometrical defects will impact the theoretical inter-vane voltage, given by the beam dynamics, by altering the quadrupolar component as well as adding dipolar terms in the voltage function. Tuners can correct partially the effect of the manufacturing. The study summarizes the effects of the voltage errors on the beam quality in the case of the ESS RFQ with a harmonic analysis of the voltage function. We discuss the acceptable level of voltage errors and associated mechanical tolerances.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB039  
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FRYAA02 ESS Progressing into Construction 4266
  • M. Lindroos, H. Danared, M. Eshraqi, R. Garoby, A. Jansson, Y.I. Levinsen, C.A. Martins, A. Ponton
    ESS, Lund, Sweden
  The construction of the European Spallation Source, ESS, started in summer 2014. At the site in Lund, the accelerator tunnel will be completed at the time of IPAC16, while prototyping and manufacturing or prepara-tions for manpower contributions are going on in more 23 laboratories distributed over the 12 European countries collaborating on the accelerator project. Major technical milestones have been reached include the testing of su-perconducting cavity prototypes of two families to values above design gradients, the first ESS modulator has been tested to 90 kV and the first klystron prototype has been received in April 2016. Equally important developments are taking place at many partner laboratories. The presen-tation will summarize the status of the ESS accelerator project by the time of IPAC16..  
slides icon Slides FRYAA02 [66.734 MB]  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-FRYAA02  
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