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J Magn Reson. 2011 Dec;213(2):344-6. doi: 10.1016/j.jmr.2011.08.005. Epub 2011 Sep 1.

The principle of reciprocity.

Author information

1
Institute for Biodiagnostics, National Research Council, Winnipeg, Canada. david.hoult@nrc-cnrc.gc.ca

Abstract

The circumstances surrounding the realisation that NMR signal reception could be quantified in a simple fundamental manner using Lorentz's Principle of Reciprocity are described. The poor signal-to-noise ratio of the first European superconducting magnet is identified as a major motivating factor, together with the author's need to understand phenomena at a basic level. A summary is then given of the thought processes leading to the very simple pseudo-static formula that has been the basis of signal-to-noise calculations for over a generation.

PMID:
21889377
DOI:
10.1016/j.jmr.2011.08.005
[Indexed for MEDLINE]

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