Author: Krainer, A.M.
Paper Title Page
MOPAB001 Status of the FCC-hh Collimation System 64
 
  • J. Molson, A. Faus-Golfe
    LAL, Orsay, France
  • R. Bruce, M. Fiascaris, A.M. Krainer, S. Redaelli
    CERN, Geneva, Switzerland
 
  Funding: Funding from the European Union's Horizon 2020 research and innovation programme under grant No 654305.
The future circular hadron collider (FCC-hh) will have an unprecedented proton beam energy of 50 TeV, and total stored beam energy of 8.4 GJ. We discuss current developments in the collimation system design, and methods with which the challenges faced due to the high energies involved can be mitigated. Finally simulation results of new collimation system designs are presented.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB001  
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TUPIK037 Proton Cross-Talk and Losses in the Dispersion Suppressor Regions at the FCC-hh 1763
 
  • H. Rafique, R.B. Appleby
    UMAN, Manchester, United Kingdom
  • J.L. Abelleira
    JAI, Oxford, United Kingdom
  • A.M. Krainer, A. Langner
    CERN, Geneva, Switzerland
 
  Funding: The European Circular Energy-Frontier Collider Study (EuroCirCol), EU's Horizon 2020 grant No 654305
Protons that collide at the interaction points of the FCC-hh may contribute to the background in the subsequent detector. Due to the high luminosity of the proton beams this may be of concern. Using DPMJET-III to model 50 TeV proton-proton collisions, tracking studies have been performed with PTC and MERLIN in order to gauge the elastic and inelastic proton cross-talk. High arc losses, particularly in the dispersion suppressor regions, have been revealed. These losses originate mainly from particles with a momentum deviation, either from interaction with a primary collimator in the betatron cleaning insertion, or from the proton-proton collisions. This issue can be mitigated by introducing additional collimators in the dispersion suppressor region. The specific design, lattice integration, and the effect of these collimators on cross-talk is assessed.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK037  
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