Illustrious_Crab1060 t1_ittuopi wrote
Reply to comment by PuffyPanda200 in TIL Liquid Helium is the perfect element to keep the superconductive magnets in MRI machines cold by Alternative-Leg1095
Why can't they cut the power to the magnet, without doing a quench? Or is it not an electromagnet?
PuffyPanda200 t1_itv8gj3 wrote
It is an electron magnet. The medium that holds the electric flow to create the magnetic field is a superconductor, so no energy is needed to maintain the flow, so cutting power doesn't really help.
The aforementioned medium is kept cold by liquid Helium.
As stated I do fire protection, my explanation may be rudimentary in some ways.
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