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nuclear magnetic resonance

 

Definition: the phenomenon in which certain atomic nuclei possessing a magnetic moment will precess around the axis of a strong external magnetic field, the frequency of precession (Larmor frequency) being specific for each nucleus and the strength of the magnetic field; spinning nuclei induce their own oscillating magnetic fields, and therefore emit electromagnetic radiation that can produce a detectable signal at the Larmor frequency. NMR is used as a method of determining structure and assessing molecular dynamics and is applied clinically in magnetic resonance imaging.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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