Cross-section diagram of an MRI magnet system. The imaging magnet, in blue, is a key component of the magnetic resonance imaging system. MRI relies on the interaction of the magnetic field produced by the magnet with the natural magnetic properties in certain atomic nuclei of biological molecules to produce a signal that computers use to recreate 3-D images of living tissue.

A large-bore superconducting magnet, built by Intermagnetics General Corporation, destined for a magnetic resonance imaging system.