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Transporting a 15-Meter-Wide, 600-Ton Magnet Cross Country

necro81 writes "Although its Tevatron particle accelerator has gone dark, Fermi Laboratory outside Chicago is still doing physics. A new experiment, called muon g-2 will investigate quantum mechanical behavior of the electron's heavier sibling: the muon. Fermi needs a large ring chamber to store the muons it produces and investigates, and it just so happens that Brookhaven National Laboratory outside NYC has one to spare. But how do you transport a delicate, 15-m diameter, 600-ton superconducting magnet halfway across the country? Very carefully."

13 of 152 comments (clear)

  1. Hello datacenters by dadelbunts · · Score: 4, Funny

    I would be so tempted to just drive by datacenters wiping all their data. It probably wouldnt work BUT I CAN DREAM CANT I!

    1. Re:Hello datacenters by dadelbunts · · Score: 4, Funny

      The dream police, they live inside of my head. The dream police, they come to me in my bed. The dream police, theyre coming to arrest me, oh no.

  2. Re:Cross country? by Anonymous Coward · · Score: 5, Informative

    FTA: "The Muon g-2 ring, an electromagnet made of steel and aluminum, begins its 3,200-mile trek from New York in early June. From there, it will sail by barge down the East Coast, around Florida's tip into the Gulf of Mexico, then up the Mississippi River until it arrives in Illinois."

  3. Re:Cross country? by jeffmeden · · Score: 4, Insightful

    Here's an Idea, why not move the Scientists? Greyhound bus.

    Or telecommute?

    They need to get *muons* into the ring, not the scientists. And Muons only survive on their own for 2 microseconds so even telecommuting is out of the question.

  4. Re:Cross country? by krlynch · · Score: 5, Informative

    We usually prefer airplanes to buses (lots cheaper, given the time value of money.....)

    The cost of running the experiment again at Brookhaven (which had been our initial idea) would be significantly higher than moving it to Fermilab, because of the cost of required accelerator upgrades at Brookhaven. Fermilab has protons to spare, and the experiment fits into the larger muon program at the Lab. http://www.fnal.gov/pub/science/experiments/intensity/

  5. No tilt.. so lets move it over the ocean? by boaworm · · Score: 4, Interesting

    >> The trip will be tense, because the ring’s massive electromagnet cannot tilt or twist more than a few degrees, or the wiring inside will be irreparably damaged. It will float from New York Harbor in June, down the East Coast, around Florida, up the Gulf Coast and up the Mississippi River by July.

    That seems rather risky. Most ships would at one point or another tilt more than a few degrees to either side due to .. waves. No mention on if this is a gyro-stabilized barge perhaps...

    --
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  6. Re:Why is it so fragile? by cffrost · · Score: 5, Informative

    It's a big electro magnet. Why can tilting it a couple of degrees break it?
    The article doesn't say as far as I can tell, so I can only assume it's because it was built from crappy parts, or assembled by idiots.

    It could be a Bitter electromagnet, which are constructed from thin disks of porous copper.

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  7. Re:Cross country? by gman003 · · Score: 4, Informative

    They're moving the magnet to a particle accelerator. It's already at one, and it generated some interesting findings, but the particle accelerator it's currently at is too weak to give a margin of error low enough to safely call it a discovery.

    Thus, they're moving it to a more powerful accelerator, since moving the accelerator to it is not exactly an option.

  8. Re:Cross country? by krlynch · · Score: 4, Informative

    Both routes were considered, but I'm not sure why one was chosen over the other. Presumably input from the companies bidding on the contract had something to do with it.

  9. Re:Why is it so fragile? by krlynch · · Score: 5, Informative

    Well, we might be idiots, but that's not the problem. It's a set of three very large superconducting coils, custom wound on-site in the 1990s, built into cryostats that can't be disassembled, and being moved as a set of monolithic units. They were never designed or intended to be moved, and significant engineering work has gone into determining the mechanical loads they can be safely subjected to.

  10. Re:Why is it so fragile? by Herkum01 · · Score: 4, Informative

    If you read the article, it says that shipping is 1/50 of the cost of building a new one.

  11. Re:Cross country? by LoRdTAW · · Score: 4, Informative

    It is a lot easier to move 600 tons by barge than by land. The size and weight makes it impossible to go over bridges and most roads. Not only is the weight highly concentrated, 1.2 million pounds for the magnet and probably another 300,000+ for the modular platform trailers & tractor but the width is nearly 50 feet. At that weight your speed is severely limited, always below 5 mph and you are limited to moving at night only. From the map, I would guess it might make its way south on floyd then onto a barge in the bay. I don't see how they could get it anywhere on the north shore unless they go up floyd to 25 and take lilco rd to use the docks at the power station (if it fits up those roads). From there its an easy trip on water. No bridges, narrow roads or worries about weight. Its open water until the Mississippi.

    You also have to take into account the cost and process to apply for permits. You have to plan the route in advance and have it approved by the DOT. By law you need a police escort for a load that large in NY, more money. Imagine planning a route for hundreds of miles involving police escorts, road closures, moving only at night, slow speeds and having to deal with routing around bridges (if possible) and maybe needing to reinforce bridges/overpasses. It can and has been done many times but its costly and time consuming. It can take upward of a year or more to plan a move that big.

  12. Re:Why is it so fragile? by gmhowell · · Score: 4, Informative

    Well, we might be idiots, but that's not the problem. It's a set of three very large superconducting coils, custom wound on-site in the 1990s, built into cryostats that can't be disassembled, and being moved as a set of monolithic units. They were never designed or intended to be moved, and significant engineering work has gone into determining the mechanical loads they can be safely subjected to.

    How much would it cost to build another one at say, Fermilab?

    Here's a hint: that information is in the article.

    --
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