Author: Maglioni, C.
Paper Title Page
TUAD2 Comparison between Measured and Computed Temperatures of the Internal High Energy Beam Dump in the CERN SPS 1373
 
  • G.E. Steele, R. Folch, V. Kain, I.V. Leitao, R. Losito, C. Maglioni, F. Pasdeloup, A. Perillo-Marcone, F.M. Velotti
    CERN, Geneva, Switzerland
 
  The SPS high energy internal dump (TIDVG) is designed to receive beam dumps from 102.2 to 450 GeV. The absorbing core is composed of 2.5m graphite, followed by 1m of aluminium, then 0.5m of copper and finally 0.3m of tungsten, all of which is surrounded by a water cooled copper jacket. An inspection during Long Shutdown 1 revealed significant beam induced damage to the Al section of the dump block. Temperature sensors were installed to monitor the new dump replacing the damaged one. This paper summarises the correlation between the temperature measured as a function of the energy deposited and the same temperatures computed in a numerical model combining FLUKA and ANSYS simulations. The goal of this study is the assessment of the thermal contact quality between the beam absorbing blocks and the copper jacket, by analysing the cooling times observed from the measurements and from the thermo-mechanical simulations. This paper presents an improved method to estimate the efficiency and long term reliability of the cooling of this type of design, with the view of optimising the performance of future dump versions.  
slides icon Slides TUAD2 [5.768 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUAD2  
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THPF096 Origin of the Damage to the Internal High Energy Beam Dump in the CERN SPS 3927
 
  • V. Kain, K. Cornelis, B. Goddard, M. Lamont, I.V. Leitao, R. Losito, C. Maglioni, M. Meddahi, F. Pasdeloup, G.E. Steele, F.M. Velotti
    CERN, Geneva, Switzerland
 
  The high energy beam dump in the SPS has to deal with beams from 105 to 450 GeV/c and intensities of up to 4 ×1013 protons. An inspection during the last shutdown revealed significant damage to the Al section of the dump block. This paper summarizes the results of the analysis revealing the most likely cause of the damage to the beam dump. The implications for future SPS operation will also be briefly discussed, together with the short-term solution put in place.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF096  
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