Improvements to CERN’s accelerator injector chain completed as part of high-luminosity upgrade
The revamped injector chain – which consists of a series of accelerators– will play a key role in boosting the Large Hadron Collider’s performance

Modernising the injectors
The project to modernise the injectors to CERN’s LHC, called the LHC Injectors Upgrade (LIU), has been several years in the making.
The goal has been to create much more intense and higher quality proton beams. In other words, to increase the number of protons in every package (or “bunch”), while reducing their dispersion, making the beam more precise. This allows for a considerable increase in the number of useful collisions, which in turn means more data and more chances of new physics discoveries.