NMR probe which includes B1, gradient coils
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United States of America Patent
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-
Jun 21, 1994
Grant Date -
N/A
app pub date -
Mar 12, 1993
filing date -
Mar 12, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An NMR probe is designed to generate both a homogeneous RF field over the sample volume and, alternatively, a 'radial' field comprising two orthogonal gradient fields generated simultaneously in the transverse plane or a linear gradient field. The homogeneous field is generated by means of a known homogeneous coil construction, such as a Helmholtz coil or modified Helmholtz coil. The radial field can be generated by means of an inverted Helmholtz coil, either modified or unmodified, and the linear field can be generated by a Golay type coil, which coils are positioned coaxially with the homogeneous coil. The two coils are connected in parallel to the RF signal generator and switching can be accomplished either by means of an active switch or by detuning one of the coil resonant circuits when the other coil is in use.
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