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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

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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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