CONTINUOUSLY WOUND SOLENOID COIL WITH FINAL CORRECTION FOR GENERATING A HOMOGENEOUS MAGNETIC FIELD IN THE INTERIOR OF THE COIL AND ASSOCIATED OPTIMIZATION METHOD
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Nov 30, 2009
filing date -
Dec 5, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a device for generating a uniform magnetic field and to an optimization method for magnetic fields in a sample space, the method providing specifications for producing such a device. The device comprises at least one field coil for generating the magnetic field and the turns of the field coil are continuously wound around the sample space and the turn diameter of the field coil changes continuously at least in a portion of the field coil along the longitudinal axis of the sample space. To this end, the correction of non-uniformities in the magnetic field caused by the finite length of the field coil is distributed over the entire field coil. In this way, the device can be implemented more easily and precisely than with the correction coils used according to the prior art for correcting non-uniformities. Instead of the existing series expansion of the magnetic field, the method for optimizing the magnetic field employs a power function in conjunction with simulation of the magnetic field based on the optimization parameters. This function can be used in a larger volume than the series expansion.
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