Design and testing of high sensitivity microreceiver coil apparatus for nuclear magnetic resonance and imaging

We report the design and testing of a nuclear magnetic resonance (NMR) microcoil receiver apparatus, employing solenoidal microreceiver coils of dimensions of tens to hundreds of microns, using applied field of 9 T (proton resonance frequency 383 MHz). For the smallest receiver coils we attain sensi...

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Bibliographic Details
Published in:Review of scientific instruments 2001-04, Vol.72 (4), p.2171-2179
Main Authors: Seeber, D. A., Cooper, R. L., Ciobanu, L., Pennington, C. H.
Format: Article
Language:English
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Summary:We report the design and testing of a nuclear magnetic resonance (NMR) microcoil receiver apparatus, employing solenoidal microreceiver coils of dimensions of tens to hundreds of microns, using applied field of 9 T (proton resonance frequency 383 MHz). For the smallest receiver coils we attain sensitivity sufficient to observe proton NMR with signal to noise (S/N) one in a single scan applied to a ∼10 μ m 3 (10 fl) water sample, containing 7×10 11 total proton spins. We also test the dependence of the S/N on important coil parameters, including coil composition and resistivity, turn spacing, and lead lengths.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1359190