Magnetic field homogenizing coil sets having spatial independence and spectrometer means using same
Abstract
Abstract MAGNETIC FIELD HOMOGENIZING COIL SETS ARE PROVIDED WHEREIN EACH COIL SET DEFINES A GEOMETRICAL CONFIGURATION OF CURRENT PATHS TO BE ENERGIZED TO PRODUCE SEPARATE ASYMMETRIC DISTRIBUTIONS OF CURRENT RELATIVE TO A CERTAIN REGION OF MAGNETIC FIELD TO BE CORRECTED. THESE ASYMMETRIC DISTRIBUTIONS OF CURRENT PRODUCE SEPARATE HOMOGENIZING MAGNETIC FIELD GRADIENT COMPONENTS WHICH ARE SUBSTANTIALLY CONFINED TO SEPARATE PORTIONS OF THE REGION OF FIELD TO BE CORRECTED FOR CANCELLING CERTAIN RESIDUAL MAGNETIC FIELD INHOMOGENEITIES IN THE SEPARATE PORTIONS OF THE FIELD TO BE CORRECTED. IN THIS MANNER, THE FIELD HOMOGENIZING GRADIENT COMPONENTS ARE SPATIALLY INDEPENDENT TO PREVENT MUTUAL INTERFERENCE OF THEIR ADJUSTMENT AND WHEREBY THE ADJUSTMENTS PRODUCE UNAMBIGUOUS CORRECTIONS OF THE FIELD WHEN SENSED BY GUROMAGNETIC RESONANCE OF A SAMPLE WITHIN THE REGION OF FIELD BEING CORRECTED.
Inventors
- 👤 Forrest A Nelson
Bibliographic Details
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