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Long Island man wearing 9kg-metal necklace dies after being sucked into MRI machine
(www.independent.co.uk)
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And that’s basically it!
Just for your information, the machine, meaning the magnet, is ALWAYS on.
Surely dialed down in between scans?
No. They are usually superconducting magnets in persistent mode:
https://en.m.wikipedia.org/wiki/Superconducting_magnet
No it is only turned off during maintenance or by an emergency kill switch.
Unless something gets stuck. Then it is shut down and restarted after the thing is removed. Takes hours though, I think the startup was four hours.
They had that happen at the hospital my father worked at, the cleaning lady brought in a stool with steel legs. They tried to remove it by force first, but four men could not do it.
Huh, I thought this was nonsense, but googling proved you're right. Very cool TIL!