A look at the damage that halted the LHC

A look at the damage that halted the LHC

Summary: Cern has released pictures of the impact of a liquid helium leak in September

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TOPICS: Emerging Tech
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  • On Friday, the European Centre for Nuclear Research (Cern) released photos of damage to the Large Hadron Collider (LHC), Cern's flagship particle accelerator. The particle accelerator was damaged by a liquid helium leak in September, nine days into an experiment to test fundamental theories of physics by colliding beams of protons inside a 27km ring.

    This picture shows two of the most severely broken interconnects, which are between the magnets in LHC sectors three and four. The superconducting magnets, used to direct and focus the proton beams in the experiment, are cooled by liquid helium. An electrical fault caused the liquid helium to leak, resulting in a need for repairs that has put the experiment out of action until at least summer 2009.

  • This picture shows damage to the support of one of the quadrupole magnets in sectors three to four. The LHC uses quadrupole magnets to focus opposing proton beams, and dipole magnets to keep the beams on their respective paths.

Topic: Emerging Tech

Tom Espiner

About Tom Espiner

Tom is a technology reporter for ZDNet.com. He covers the security beat, writing about everything from hacking and cybercrime to threats and mitigation. He also focuses on open source and emerging technologies, all the while trying to cut through greenwash.

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  • There's a better explanation of the fault...

    ... on Rupert's blog.
    http://community.zdnet.co.uk/blog/0,1000000567,10009655o-2000331777b,00.htm

    It was a "quench" that went past the LHC's quench suppression systems.
    judgecorp