The physical phenomenon that MRI is based on does not depend on ionizing radiation, but on other properties of atoms instead. What is this phenomenon called?

MRI works by using magnetic fields and radiofrequency pulses to affect the behavior of atomic nuclei, especially hydrogen nuclei in the body. This physical phenomenon is called nuclear magnetic resonance. Gamma-ray bursts, positron emission, and X-ray propagation involve different processes and are not the basis of MRI.

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