What is the commonly used name for the static magnetic field in MRI?

In MRI, the static magnetic field that is generated by the superconducting magnets is commonly referred to as B0. This term is essential in the context of magnetic resonance imaging because it denotes the main magnetic field strength that is crucial for aligning the nuclear spins of hydrogen atoms in the body.

B0 is critical for producing high-quality images, as the strength of the field affects the resolution and signal-to-noise ratio of the MRI scans. A higher B0 value typically results in better image quality.

The other terms provided do not accurately represent the static magnetic field. B1 refers to the radiofrequency magnetic field that is used during the excitation phase of MRI but does not represent the static field itself. Equilibrium describes a state within the context of spin dynamics, not the magnetic field name. Inverse field is not a standard term used in MRI and does not correspond to any recognized concept relating to the static magnetic field.