Investigation of systematic errors in NMR field probes
Spencer Baird Parent1, William Bradfield Handler 2, and Blaine A. Chronik2
1Medical Biophysics, Western University, London, ON, Canada, 2Physics and Astronomy, Western University, London, ON, Canada
Using finite elements methods, an
investigation of the systematic errors in magnetic field NMR probes is
investigated. A NMR field probe is modeled and the field broadening and field
offset is investigated as a function of the susceptibility of epoxy. It is
shown that susceptibility matching the epoxy drastically reduces field
broadening with a minimal effect on field offset. Additionally the effect of
air bubbles present in cured epoxy is modeled and the results show that for
certain critical regions of the probe the presence of an air bubble can be disadvantageous
to the quality of the field probe.
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