Author: Maury Cuna, G.H.I.
Paper Title Page
MOPPC001 Simulation of electron-cloud heat load for the cold arcs of the large hadron collider 115
 
  • G.H.I. Maury Cuna
    CINVESTAV, Mérida, Mexico
  • G. Iadarola
    Naples University Federico II, Science and Technology Pole, Napoli, Italy
  • G. Rumolo, F. Zimmermann
    CERN, Geneva, Switzerland
 
  The heat load due to the electron cloud in the Large Hadron Collider (LHC) cold arcs is a concern for its performance near and beyond nominal beam current. We report the results of simulation studies, which examine the electron-cloud induced heat load for different values of low-energy electron reflectivity and secondary emission yield at injection energy, as well as at beam energies of 4 TeV and 7 TeV, for two different bunch spacing: 25 ns and 50 ns. Benchmarking the simulations against heat-load observations at different beam energies and bunch spacing allows an estimate of the secondary emission yield in the cold arcs of the LHC and of its evolution as a function of time.