During a two-month test run that started at the end of September, Linac4 will send negative hydrogen ions up to the door of the PS Booster

Major renovation work is under way across the entirety of CERN’s electrical network to modernise certain key facilities

Two teams are treating the vacuum chambers of selected SPS magnets to limit the electron-cloud phenomenon, which can disrupt the beams

The CMS muon system is being upgraded to help track muons with ever-higher precision

The first definitive component of the High-Luminosity LHC, an absorber designed to protect the machine, has been installed in the LHC

The assembly of the new muon small wheels and the upgrades on the electronics and trigger systems are progressing well

The Super Proton Synchrotron will receive a new beam dump before the end of the second long shutdown of CERN’s accelerator complex

New vacuum chambers are being developed for the ALICE and CMS experiments

Improvements to the cryogenics infrastructure will more than double the liquid helium production capacity of SM18

At CERN, 40 000 cables will be installed or removed during LS2. Laid end to end, they would stretch for 2000 kilometres!

New injection and acceleration equipment is being installed in the PS Booster, which is in the midst of a major overhaul