Abstract
The Large Hadron Collider (LHC) at CERN near Geneva is the world's newest and most powerful tool for Particle Physics research. It is designed to collide proton beams with a centre-of-mass energy of 14 TeV and an unprecedented luminosity of 1034 cm−2 s−1. It can also collide heavy (Pb) ions with an energy of 2.8 TeV per nucleon and a peak luminosity of 1027 cm−2 s−1. In this paper, the machine design is described.