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Automated Shimming with Normal Spectrometer Hardware: 3D Profile Edge Shimming

✍ Scribed by Paul B. Chilvers; Gareth A. Morris

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 98 KB
Volume: 133
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.1998.1464

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✦ Synopsis

A novel method is proposed for automated magnetic field homogeneity adjustment in high-resolution NMR. The method uses measurements of the edge frequencies of slice profiles recorded under static gradients to obtain three-dimensional magnetic field maps and does not require significant extra spectrometer hardware. Results are presented for the ''cold'' shimming of 5-and 10-mm-diameter probes in a 400-MHz narrow bore magnet.

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