During the design phase of the CERN Large Hadron Collider the dynamic aperture, ie the
amplitude of the domain in phase space where the particle motion is stable, was used as …

A new international study has just been launched to design a hadron collider with a centre-
of-mass energy of the order of 100 TeV in a new 80–100 km tunnel as a long-term goal. The …

The precise knowledge of the magnetic field produced by dipole magnets is critical to the
operation of a synchrotron. Real-time measurement systems may be required, especially in …

During LHC 2010 run, approximately 40 experimental sessions for optics measurements
were carried out. Both local and global corrections were implemented, demonstrating the …

A history of the commissioning and the very successful early operation of the Large Hadron
Collider (LHC) is described. The accident that interrupted the first commissioning, its repair …

After one year of operation in the multi-MJ stored energy regime, important operational
experience has been gained on various aspects, with stable machine configurations (with …

The LHC deploys a comprehensive suite of beam-based feedbacks for safe and reliable
machine operation. This contribution summarises the commissioning and early results of the …

The beta function has a fundamental impact on the LHC performance and on the functioning
of its machine protection and collimation systems. A new beta-beat diagnostic system …

The LHC deploys a comprehensive suite of beam-based feedbacks for safe and reliable
machine operation. This contribution summarises the commissioning and early results of the …

A system for the active compensation of magnetic field errors within±2ppm relative to the
main field in superconducting magnets is proposed. A high-performance rotating coils …