Free induction decay: Difference between revisions
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Revision as of 20:33, 10 September 2005
A FID is a free-induction decay curve generated as excited nuclei relax in an NMR machine. The nuclei in an NMR are in a generated magnetic field when an RF pulse is transmitted to them. The pulse flips their magnetic moment into the XY plane where they spin at the Larmour frequency, this spinning of magnetic moments generates a current which is reflected in the FID.
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