The world"s most powerful atom smasher has...
September 2008 shortly after a successful start, due to a malfunction of two superconducting magnets and a subsequent helium leak into the tunnel housing the device.Work to repair and upgrade the collider after the breakdown cost almost $40 mln and took over a year. A system to protect it from such accidents, named the Quench Protection System, was installed, and the first beams were injected into the LHC on November 20.
MOSCOW, February 28 (RIA Novosti)
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