ABSTRACT
This chapter argues that electron paramagnetic resonance (EPR) imaging is a rapidly developing field with a variety of approaches that can be tailored to suit a particular sample. The detection methods for imaging include continuous wave, EPR, electron nuclear double resonance, and pulsed EPR. Applications of EPR imaging include studies of diffusion, oxygen or other broadening agent concentration, radiation defects, surfaces, and magnetic-field distribution. As EPR imaging moves increasingly in the direction of multiple-dimension images, short scan-times become more important. One of the major challenges for EPR imaging is the development of larger field-gradients. The computers for EPR imaging require very large data storage and handling. Applications of EPR imaging to in vivo oxymetry will develop rapidly into a major subfield of EPR. For the in vivo work, the development of pulsed EPR at L-band is needed, as are resonators appropriate for large samples.
