Modeling of Beam Loss Induced Quenches in the LHC Main Dipole Magnets

Marco Breschi*, Enrico Felcini, Francesca Breccia, P. P. Granieri, Eleonora Bergonzoni, Alessandro Bevilacqua, Pietro Galassi, Tiemo Winkler, Luca Bottura

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)


The full energy exploitation of the Large Hadron Collider (LHC), a planned increase of the beam energy beyond the present 6.5 TeV, will result in more demanding working conditions for the superconducting dipoles and quadrupoles operating in the machine. It is hence crucial to analyze, understand, and predict the quench levels of these magnets for the required values of current and generated magnetic fields. A one-dimensional multi-strand electro-thermal model has been developed to analyze the effect of beam-losses heat deposition. Critical elements of the model are the ability to capture heat and current distribution among strands, and heat transfer to the superfluid helium bath. The computational model has been benchmarked against experimental values of LHC quench limits measured at 6.5 TeV for the Main Bending dipole magnets.

Original languageEnglish
Article number8675319
JournalIEEE transactions on applied superconductivity
Issue number5
Publication statusPublished - 27 Mar 2019


  • accelerator magnets
  • Beam losses
  • magnet stability
  • quench
  • Rutherford cables
  • superconductors
  • n/a OA procedure


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