Keyword: civil-engineering
Paper Title Other Keywords Page
THPRB116 Effect of Ground Motion Introduced by HL-LHC CE Work on LHC Beam Operation ground-motion, luminosity, operation, GUI 4092
  • M. Schaumann, D. Gamba, M. Guinchard, L. Scislo, J. Wenninger
    CERN, Geneva, Switzerland
  Funding: Research supported by the HL-LHC project
The official groundbreaking of the civil engineering (CE) work for the high luminosity upgrade of the LHC started on 15 June 2018 parallel to LHC beam operation. Compactor work and shaft excavation around the two low beta experiments, ATLAS and CMS, were expected to induce vibrations to the accelerator magnets and cause orbit disturbance, beam loss and potentially premature beam dumps. Ground motion sensors were installed on the surface and close to the triplets, where the CE works were expected to have the largest impact on the beams. This paper discusses the observations made on the LHC beams that could be correlated to CE work.
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About • paper received ※ 13 May 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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