LHC magnet quench back in 2009, damaging a total of 53 superconducting magnets and their mountings, and contaminating the vacuum pipe, which also lost vacuum conditions. : r/ThatLookedExpensive
Magnet System
First Images Emerge of Damage to the LHC, Replacements Arrive - Universe Today
LHC insertions: the key to CERN's new accelerator – CERN Courier
Large Hadron Collider faces delay – Physics World
The longest journey: the LHC dipoles arrive on time – CERN Courier
Analyzing the LHC Magnet Quenches - IEEE Spectrum
LHC magnets: the great descent | CERN
PDF] Superconducting magnets for the LHC main lattice | Semantic Scholar
The cross-section of the LHC main dipole magnet. | Download Scientific Diagram