Conductus, Inc.

Wai H Wong

Vincent Y Kotsubo

Weston A Anderson

Richard Stacy Withers

Luiz Felipe Fuks

William W Brey

Inhomogeneities in the magnetic field in the vicinity of a superconducting NMR receiver coil are avoided by placing the probe, at about room temperature, within the magnetic field, cooling rapidly to just above the critical temperature of the superconductor and then controllably cooling the coil to operating temperature at a rate of 3 K./minute or less.

Inhomogeneities in static magnetic fields near superconducting coils

A resonant coil for nuclear magnetic spectroscopy and microscopy is provided, in which the coil is in the form of nested, interrupted loops of a conductive material forming a distributed inductive element and having a plurality of capacitive elements with capacitance distributed over the periphery of the loops. The coil is preferably formed as a thin film of a superconductive material on an electrically nonconductive substrate.

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Monterey Park, CA, United States of America

Wai H Wong