Lhc

In this video, LHC Project Leader, Lyn Evans relives the giddy moments on September 10 when the first beam of protons was injected into the LHC. Everyone was relieved and excited when the particles began traveling around the 27-kilometer underground tunnel, as it had been programmed to do.

The beam of particles is now traveling around the 27-kilometer underground tunnel, which straddles the Swiss-French border near Geneva. It will take a couple of months for the LHC to get up to speed. The accelerated protons will travel at nearly the speed of light.

It will take a couple of months to bring collisions up to the desired energy. When the LHC gets up to speed, the accelerated protons will travel with nearly the speed of light. The machine will produce about 800 million proton-proton collisions every second.

He says protons are fed directly into the LHC ring via two injection lines, one for each beam. He says the first attempt to circulate two proton beams all the way around the ring will occur on September 10.

The LHC is expected to produce frontier physics for about 10 years. But scientists already are discussing the next generation of accelerator to be built. The scientific community generally agrees the LHC's successor will be a giant linear electron-positron collider, about 30 kilometers in length. Competition among CERN, the United States and Japan to win the rights to build the machine is intense.

The world's largest and most powerful particle accelerator will begin operations later this year at CERN, the European Organization for Nuclear Research. Scientists believe the new atom-smasher, known as the or LHC for short, will help them answer questions about the origin of the universe. The collider is 27 kilometers in circumference, straddling the French-Swiss border near Geneva, buried as deep as 150 meters underground.

The beams that are injected into the LHC will travel through a vacuum guided by superconducting magnets operating at extremely cold temperatures near absolute zero. Each beam will consist of nearly 3,000 bunches, with each bunch containing as many as 100 billion particles. When head-on collisions occur, they will produce a shower of new particles. But the most interesting new particles will be very rare events.