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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."
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."
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/
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.
Thank you, Edward Snowden.
"Arguments from authority are worthless." —Carl Sagan
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.