Back in business:The first ion beam entering point 2 of the LHC, just before the ALICE detector
By Hamish Johnston
According to a CERN press release, lead ions were placed in the clockwise beam pipe on Friday 23 October and guided past the Alice detector before being dumped.
Later that day the first beam of protons followed the same route — and then on Saturday protons were sent through the LHCb detector.
CERN said “All settings and parameters showed a perfect functioning of the machine, which is preparing for its first circulating beam in the coming weeks”.
Matin Durrani recently spoke to CERN boss Rolf-Dieter Heuer about the switch-on of the LHC — you can watch the interview here or below, along with two other videos made at CERN.