First Cirulating Beams (20th November 2009 onwards)

Following the "splash" events of 6th/7th November the time has come to circulate the proton beams all around the LHC. This started in the early evening (Geneva time) on Friday 20th November and by midnight the beam had been circulated in both directions around the ring. Within a couple of days beam lifetimes were up to several hours, both beams were circulating at the same time, beams had been ramped to higher energies and first collisions (at 900 GeV centre of mass) had taken place.