| 摘要 |
PROBLEM TO BE SOLVED: To provide a method the measuring a magnetic field remaining after stop of application of an inclined magnetic field, a method for manufacturing an inclined coil, reflecting the characteristics of a residual magnetic field found as a result of measurement, an inclined coil manufactured by the method and a magnetic resonance imaging instrument having such inclined coil. SOLUTION: A specimen that can magnetically resonate is arranged in a point of measurement on the surface of a sphere assumed in a measurement space, an inclined magnetic field is applied to the measurement space, an FID signal produced by the specimen by exciting RF after the application of an inclined magnetic field is stopped is measured, and the intensity of the magnetic field at the point of measurement is obtained on the basis of a differential value of the phase of the FID signal and fitted to a spherical harmonic function.
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