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7/20/2025, 8:18:06 PM
>>510884893
MRI magnets are made from Nb-Ti superconductors. The same magnets are used in the large hadron collider at CERN.
Nb-Ti can achieve 17 Teslas at 1K as they rip themselves apart. I think MRIs operate at 1-3T, while the LHC operates at 8T.
For comparison: the average fridge magnet will have a magnetic field density of about 0.005T. A neodymium magnet will be around 1T (and you know how devilishly strong neodymium magnets are even when tiny).
So imagine a neodymium magnet, but slightly stronger. Now scale it up to the size of a football. That's how strong the weakest MRI is.
MRI magnets are made from Nb-Ti superconductors. The same magnets are used in the large hadron collider at CERN.
Nb-Ti can achieve 17 Teslas at 1K as they rip themselves apart. I think MRIs operate at 1-3T, while the LHC operates at 8T.
For comparison: the average fridge magnet will have a magnetic field density of about 0.005T. A neodymium magnet will be around 1T (and you know how devilishly strong neodymium magnets are even when tiny).
So imagine a neodymium magnet, but slightly stronger. Now scale it up to the size of a football. That's how strong the weakest MRI is.
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