Simulations of collimation and beam cleaning were so far often performed with simplified
computer models. However, the increase in available CPU power has opened the possibility …

The physics reach of the LHC requires unprecedented luminosity and beam intensity in
proton-proton collisions. The maximum intensity in the LHC is directly coupled to the …

A powerful collimation system is required in the LHC for protecting the machine and for
avoiding quenches. The concept, layout, and performance criteria of the collimation system …

Abstract The Large Hadron Collider (LHC) is currently the world's largest particle accelerator
with the highest center of mass energy in particle collision experiments. The control of the …

The LHC collimation system beam-based alignment procedure has recently been upgraded
to a semi-automatic process in order to increase its efficiency. In this paper, we describe the …

During injection and ramping at the LHC the time dependence of the errors in the main
dipoles will have an effect on the beam dynamics. These time dependencies are simulated …

The LHC, presently being built at CERN, is the first proton collider that requires a continuous
orbit control for safe and reliable machine operation. A realistic test of the orbit feedback …

The real-time orbit feedback system foreseen for the LHC will be an essential component for
reliable and safe machine operation. A test setup including a number of beam position …

Many beam measurements are essential already in the first stage of the LHC
commissioning. Others become necessary only as the intensity and the number of bunches …

During injection and ramping at the LHC the time dependence of the errors in the main
dipoles will have an effect on the beam dynamics. These time dependencies are simulated …