at CERN LHC shared the superacceleratore
28febbraio 2010
The largest accelerator in the world is once again active and his work is progressing well. The Large Hadron Collider (LHC) at CERN in Geneva is divided into the night, after some small problems that forced him to postpone the time of recovery after the winter break, dedicated to maintenance. The boot of the car was in fact planned the evening of Friday, but the engineers have preferred to wait for some electrical system problems were finally overcome. "There is nothing special happened, were made of routine administration," noted the physicist Guido Tonelli, Cms Global Head, one of four experiments accelerator. "The fault was repaired and everything is going well," he added. Solving the problem required a bit 'of time because "the control system of the machine is so complex, do any control means to browse thousands of components." The massive security system was installed following the accident after the start of September 2008 had forced the accelerator for a long period of inactivity. Since then the system indicates that critical situations in the magnets has been replaced with 7,000 new electronic circuit boards and 250 km of cables, making the LHC is up to 3,000 times more secure. Now the particle beams are scrolling acceleration, one at a time and each in a different direction. Speed \u200b\u200bis the time for the relatively low to which the beams are injected into the machine, amounting to 450 billion electron volts (GeV) per beam (a total of 900 GeV). 
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