Tesseral gradient coil for nuclear magnetic resonance tomography apparatus
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United States of America Patent
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Oct 7, 1997
Grant Date -
N/A
app pub date -
Jul 22, 1996
filing date -
Jul 24, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A tesseral gradient coil is composed of at least two coil segments spaced in axial direction, each coil segment being composed of at least two windings symmetrically arranged relative to a middle line of an interior of the nuclear magnetic resonance apparatus. Each winding has an outer winding part, lying on a larger radius around the middle axis and an inner part lying on a smaller radius around the middle axis of the interior. The two winding parts are oppositely traversed by current. The number of ampere-turns of the outer winding part of each winding is lower than the number of ampere-turns of the inner winding part.
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