Stray Field Imaging by Magnetic Field Sweep

A novel variant on nuclear magnetic resonance stray field imaging (STRAFI) is presented in which an additional magnetic field sweep coil is used to sweep the region of resonant frequency through a stationary sample. Variants on this technique using an integral superconducting field sweep coil as par...

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Bibliographic Details
Published inJournal of magnetic resonance (1997) Vol. 132; no. 1; pp. 172 - 175
Main Authors Mallett, M.J.D., Halse, M.R., Strange, J.H.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.05.1998
Subjects
imaging
NMR
solids
STRAFI
stray field
stray field
NMR
STRAFI
solids
imaging
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Summary:A novel variant on nuclear magnetic resonance stray field imaging (STRAFI) is presented in which an additional magnetic field sweep coil is used to sweep the region of resonant frequency through a stationary sample. Variants on this technique using an integral superconducting field sweep coil as part of a spectroscopy magnet and a room temperature field sweep coil mounted inside an imaging magnet are detailed. One-dimensional profiles of “Perspex” and polytetrafluoroethylene samples are presented. The results from both superconducting and room temperature field sweep coils compare favorably with “conventional” STRAFI.
ISSN:1090-7807
1096-0856
DOI:10.1006/jmre.1998.1385