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Electron spin resonance spectroscopy

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Electron spin resonance spectroscopy

(Science: radiology) a technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons.

The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. electron nuclear double resonance (endor) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications.