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The principle of reciprocity in signal strength calculations?A mathematical guide

โœ Scribed by Hoult, D. I.

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
249 KB
Volume
12
Category
Article
ISSN
1043-7347

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โœฆ Synopsis

Confusion exists over the application of the Principle of Reciprocity to NMR signal strength calculations when wavelength in a sample is comparable to the latter's size. A simple and easily reproduced bench experiment that validates the principle is therefore described. Building on the experimental results, elementary mathematics are employed to derive simple equations for the B fields in both the negatively and the 1 positively rotating frames. Using these equations, the reader is then guided through the steps needed to deduce correctly the signal received in an NMR experiment. The article should serve as a resource for those attempting signal strength calculations.

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