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A transformer‐coupled double‐resonant probe for NMR imaging and spectroscopy
Author(s) -
Fitzsimmons Jeffrey R.,
Brooker H. Ralph,
Beck Barbara
Publication year - 1987
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910050510
Subject(s) - nuclear magnetic resonance , electromagnetic coil , transformer , spectroscopy , inductance , nuclear magnetic resonance spectroscopy , radio frequency , materials science , chemistry , physics , computer science , voltage , telecommunications , quantum mechanics
A new type of double‐resonant coil which takes advantage of the properties of a radio‐frequency transformer is described. Two concentric loops are wound in close proximity to yield a high mutual inductance. The primary side is tuned to 34 MHz for 31 P and the secondary side is tuned to 85 MHz for protons. A single lead allows program control over frequency without the need to rearrange cabling. Proton and phosphorus spectroscopy are made possible over essentially the same volume of interest without the need for repositioning the sample. © Academic Press, Inc.