Bird cage resonator for high resolution nuclear magnetic resonance
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United States of America Patent
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Dec 3, 1996
Grant Date -
N/A
app pub date -
Mar 10, 1995
filing date -
Mar 11, 1994
priority date (Note) -
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Abstract
A resonator which is arranged on a hollow cylindrical support (1) for the taking of high resolution magnetic nuclear resonance spectra from a sample extending along the cylinder axis within the resonator, and having a shielding (2) which defines the sensitive region of the resonator axially along a certain length which is shorter than the axial extent of the support (1), is characterized in that the resonator is configured as an axially symmetric bird-cage resonator. It only produces static field distortions in its sensitive region which are easily correctable, has an improved fill-factor and reduced ohmic losses, and produces a homogeneous RF field while avoiding topological problems occurring with quadrature detection.
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