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. 1993 Feb 5;259(5096):793-5.
doi: 10.1126/science.8430331.

A high-temperature superconducting receiver for nuclear magnetic resonance microscopy

R D Black  1 , T A Early, P B Roemer, O M Mueller, A Mogro-Campero, L G Turner, G A Johnson
Affiliations

A high-temperature superconducting receiver for nuclear magnetic resonance microscopy

R D Black et al. Science. .

Abstract

A high-temperature superconducting-receiver system for use in nuclear magnetic resonance (NMR) microscopy is described. The scaling behavior of sources of sample and receiver-coil noise is analyzed, and it is demonstrated that Johnson, or thermal, noise in the receiver coil is the factor that limits resolution. The behavior of superconductors in the environment of an NMR experiment is examined, and a prototypical system for imaging biological specimens is discussed. Preliminary spin-echo images are shown, and the ultimate limits of the signal-to-noise ratio of the probe are investigated.

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