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Serious Magnet Failure at CERN's New Accelerator

GrepNut writes "CERN is reporting that the giant magnets that steer the particle beam in the new and highly anticipated Large Hadron Collider have just failed catastrophically in a stress test, apparently due to a design oversight. It doesn't help that the magnets were designed and built by CERN's US competitor Fermilab." While safety precautions were followed, and no one was injured nor were any rifts in the space-time continuum opened, it's still a rather large setback for the project.

21 of 193 comments (clear)

  1. What actually happened by DJCacophony · · Score: 5, Funny

    The part was destroyed and subsequently compressed into a singularity by the black hole that the device created.

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    1. Re:What actually happened by Anonymous Coward · · Score: 5, Funny

      Uh...it's probably not a problem...probably...but I'm showing a small discrepancy in...well, no, it's well within acceptable bounds again. Sustaining sequence...

    2. Re:What actually happened by tsajeff · · Score: 4, Funny

      Weren't they warned never to cross the streams??

  2. There were no injuries by Anonymous Coward · · Score: 5, Funny

    But all credit cards within a 10-mile radius were erased.

    1. Re:There were no injuries by JackMeyhoff · · Score: 5, Funny

      Nevermind that, my metal impants caused me to be stuck to the ceiling for hours until it was finally switched off!

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    2. Re:There were no injuries by CRCulver · · Score: 4, Interesting

      Wouldn't strong magnetic fields, like one powerful enough to affect objects miles away, have an effect on organisms? In Larry Niven's Known Space universe (I'm thinking especially of "The Ethics of Madness" in Neutron Star ) Bussard ramjets take a long time to get off the ground since the magnetic field involved would kill the pilot. But Niven never points to any real research into this, so I never knew if it was true or just a convenient plot point. Can any particle accelerators on Earth generate a magnetic field high enough to kill people?

    3. Re:There were no injuries by John+Courtland · · Score: 4, Interesting

      Or you carry a loaded firearm into the chamber:

      http://www.ajronline.org/cgi/content/full/178/5/10 92

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  3. Just reverse the polarity by Anonymous Coward · · Score: 5, Funny

    ...and make sure there aren't any redshirts around the next time you install it.

  4. Important safety tip by rheman1 · · Score: 5, Funny

    How many time do I have to tell you: Don't cross the streams!

    1. Re:Important safety tip by truthsearch · · Score: 4, Funny

      Try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light. Total protonic reversal.

      Right. That's bad. Okay. All right. Important safety tip. Thanks.

  5. Fidgeting magnets... by wakaranai · · Score: 5, Interesting

    Hmm.... sounds nasty.

    Each of the ~1200 superconducting magnets is about 50 foot long. There's a photo here showing one being put in place (March 2005):
    http://www.msnbc.msn.com/id/7119458/

  6. Not Magnet Failure by AmIAnAi · · Score: 5, Informative
    From TFA:


    "The failure does not concern the magnets or the cold masses themselves, but rather their assembly in the cryostat."

    I know we don't read TFA here, but is it too much for the submitter to get past the first paragraph.

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  7. Apparently... by DiamondGeezer · · Score: 4, Funny

    ...they're going to boost the mass spectrometer to 105% (for the extra resolution). It should be fine just so long as they follow standard insertion procedure...but you don't need to know that - everything will be fine.

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  8. Oh, crap. by swschrad · · Score: 4, Interesting

    Fermilab has built electromagnets for many particle accelerators, including SLAC. They are apparently the only source. If you want something else, you have to go to TDK in Japan for fixed-intensity ceramic magnets.

    According to an old neighborhood buddy of mine who is at SLAC, when he was in redesign of the linear accelerator in the 80s, those were the only two bids. For flexibility, they went with Fermi and electromagnets.

    And they haven't failed yet.

    While we're whining about cars, you can't keep headlamps and taillamps in a VW, wiring issues burn 'em out. nobody's perfect. that's why you negotiate warranties in the contracts for stuff.

    no wonder you don't dare sign your name. which, BTW, is quite imperfect in itself. Can't stand on the courage of your convulsions, as a rabid right-wing wacko radio commenter used to say.

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  9. It all started when... by kpainter · · Score: 5, Funny

    "...research associate Gordon Freeman pushes a crystalline specimen into the beam of an over-charged anti-mass spectrometer, the experiment triggers a resonance cascade, which causes severe structural damage to the entire facility and severs communications with the outside world, and within much of the facility itself..." http://en.wikipedia.org/wiki/Black_Mesa_Research_F acility#.22The_Black_Mesa_Incident.22

  10. Intelligent design at work! by master_p · · Score: 4, Funny

    God does not want us to dig a hole into His universe! that's why the new accelerator will never work!

  11. Not Magnet Failure?? by IvyKing · · Score: 4, Informative
    I've been involved in the design and construction of several magnets for NMR use - and the supporting structure is usually considered to be part pf the magnet - including the cryostat used in supercons.


    The interesting part of the article was that the cryostat design was reviewed by CERN personnel, so the issue of asymmetric loading on the cryostat was overlooked by more than just Fermilab. Sounds like and "Oh shit - nobody thunk of that" moment.

    1. Re:Not Magnet Failure?? by kestasjk · · Score: 5, Funny

      An "Oh shit - nobody thunk of that" moment which building a particle accelerator.. Promising.

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  12. redundant by smoker2 · · Score: 4, Insightful
    Who the fuck tagged this "news" and "science" ?

    It's on a news site in the science section !

    WTF ?
  13. Re:worst case scenario by scheme · · Score: 4, Informative

    The difference is that the closest black hole in the universe is lightyears away (at least that is the current conception) and the universe seems to be balanced out perfectly so all the dangerous stuff that is floating around doesn't consume the whole universe. It's a careful setup of universal laws that keep it together, just like the ecosystem on earth did for thousands of years.

    There are cosmic particles hitting the atmosphere with more energy than the LHC will produce. If the LHC were going to cause a rift in the space time continuum, these particles would have done the same in the last 6 billion years that they've been hitting the atmosphere.

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  14. Re:kinda funny, really... by barakn · · Score: 4, Informative
    Such chicken-little-the-sky-is-falling hysteria is unwarranted. The collision energies in the LHC are expected to be 14 TeV when using protons. The flux of cosmic rays of energy greater than 1 TeV is 100 per year per square meter of the Earth's surface. That works out to about 1.6 billion such cosmic rays per second around the globe. The collision energies in the LHC are expected to be 1,150 TeV for lead. The flux of cosmic rays of energy greater than 100,000 TeV is one per century per square kilometer of the Earth's surface. With a surface area of ~500,000,000 km^2, that's 5 million cosmic rays per year with energies at least a hundred times greater than the LHC collision energy.

    Nature has been performing experiments in our atmosphere for 4.55 billion years at energies much higher than we could hope to attain in a collider. If it was possible for a black hole spawned in one of these event to swallow the Earth (or whatever other nightmare scenario you've envisioned), it would have already happened and you wouldn't be around to discuss it.

    Reference 1
    Reference 2

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