Introduction to EPR imaging using magnetic‐field gradients

Electron paramagnetic resonance (EPR) imaging studies the location of paramagnetic centers in a sample and the characteristics of the spins at each location. This article introduces techniques in which magnetic‐field gradients are used to encode spatial information in one‐dimensional spatial, two‐dimensional spatial‐spatial, two‐dimensional spectralspatial. And three‐dimensional spectral‐spatial‐spatial images. Examples from continuous‐wave and spin‐echo EPR imaging are presented.