Test timeline
September 2008
The first beam was circulated through the collider on the morning of 10 September 2008.[17] CERN successfully fired the protons around the tunnel in stages, three kilometres at a time. The particles were fired in a clockwise direction into the accelerator and successfully steered around it at 10:28 am local time.[18] The LHC successfully completed its first major test: after a series of trial runs, two white dots flashed on a computer screen showing the protons traveled the full length of the collider. It took less than one hour to guide the stream of particles around its inaugural circuit.[19] CERN next successfully sent a beam of protons in a counterclockwise direction.
October 2008
The first high-energy collisions are planned to take place after the LHC is officially unveiled on 21 October 2008
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