Author: De Prisco, R.
Paper Title Page
TUA1WD01 ESS Commissioning Plans 127
 
  • N. Milas, R. De Prisco, M. Eshraqi, Y. Levinsen, R. Miyamoto, M. Muñoz, D.C. Plostinar
    ESS, Lund, Sweden
 
  The ESS linac is currently under construction in Lund, Sweden, and once completed it will deliver an unprecedented 5 MW of average power. The ion source and LEBT commissioning starts in 2018 and will continue with the RFQ, MEBT and the first DTL tank next year and up to the end of the fourth DTL tank in 2020. This paper will summarize the commissioning plans for the normal conducting linac with focus on the ion source and LEBT and application development for both commissioning and operation.  
slides icon Slides TUA1WD01 [1.552 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2018-TUA1WD01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEP1WB01 Beam Dynamics of the ESS Linac 206
 
  • Y. Levinsen, R. De Prisco, M. Eshraqi, N. Milas, R. Miyamoto, D.C. Plostinar, A. Ponton
    ESS, Lund, Sweden
 
  The ESS linac will deliver an unprecedented 5 MW of average beam power when completed. Beyond the 90 MeV normal conducting front-end, the acceleration is performed using SC structures up to the design energy of 2 GeV. As the ESS will send the beam to a fixed tungsten target, the emittance is not as important a factor as in injectors. However, the losses have to be studied in detail, including not only the average operational loss required to be of less than 1 W/m, but also the accidental losses, losses due to failure and other potentially damaging losses. The commissioning of the ion source and LEBT starts this year and will continue with the RFQ next year. In this contribution we will discuss the beam dynamics aspects and challenges of the ESS linac.  
slides icon Slides WEP1WB01 [2.084 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2018-WEP1WB01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THP2WB03 Influence of the Cavity Field Flatness and Effect of the Phase Reference Line Errors on the Beam Dynamics of the ESS Linac 377
 
  • R. De Prisco, R. Zeng
    ESS, Lund, Sweden
  • K. Czuba, T.P. Leśniak, R. Papis, D. Sikora, M. Żukociński
    Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
 
  The particle longitudinal dynamics is affected by errors on the phase and amplitude of the electro-magnetic field in each cavity that cause emittance growth, beam degradation and losses. One of the causes of the phase error is the change of the ambient temperature in the LINAC tunnel, in the stub and in the klystron gallery that induces a phase drift of the signal travelling through the cables and radio frequency components. The field flatness error of each multiple cell cavity is caused by volume perturbation, cell to cell coupling, tuner penetration, etc.. In this paper it is studied the influences of these two types of errors on the beam dynamics and it is determined their tolerances such that the beam quality is kept within acceptable limits.  
slides icon Slides THP2WB03 [1.556 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HB2018-THP2WB03  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)