First protons of 2010 circulate in LHC
February 28, 2010 | 7:06 am
Yesterday just before 11:25 p.m. Central European Time, the first protons of 2010 were injected in the Large Hadron Collider. By 2:45 a.m. CET a proton beam had made hundreds of turns around the 27-kilometer ring in one direction, and the same feat was completed in the other direction by 4:10 a.m. The beams had an energy of 450 billion electron volts (GeV), which is the energy at which they are injected into the LHC.
The circulating beams marked the end of a ten week particle-free hiatus for the world’s largest particle accelerator, during which LHC scientists and engineers have prepared the machine for it’s biggest challenge yet, particle collisions at an energy of seven trillion electron volts (TeV). The beams also mark the beginning of the LHC’s first long run, expected to last until at least mid-year 2011.
Over the next few weeks, the energy of the proton beams will be ramped up toward this year’s goal: colliding 3.5-TeV beams in the center of the LHC experiments.
by Daisy Yuhas
Symmetry Intern
Posted in LHC updates, Uncategorized |
2 Comments »
February 28th, 2010 at 5:26 pm
LHC circumference = 26,659 m.
Speed = 3×10^8 m/sec (450 GeV/0.938 Gev = 480 times rest mass: deeply relativistic)
Time for one turn = 88.9 microseconds
If 1000 turns were achieved then the LHC stayed up for a tenth second. So?
September 30th, 2011 at 1:44 pm
Do you mind if I quote a couple of your blog posts as long as I provide credit and sources back to your site: http://www.symmetrymagazine.org/breaking/2010/02/28/first-protons-of-2010-circulate-in-lhc/. I’m going to aslo ensure to give you the proper anchor text link using your blog title: symmetry breaking » Blog Archive » First protons of 2010 circulate in LHC. Be sure to let me know if this is ok with you. Thank you