| 摘要 |
PROBLEM TO BE SOLVED: To provide a sufficient resolution by correcting the distortion of a total magnetic field map by magnetic susceptibility in the central component of an NMR probe in a temperature variable measurement. SOLUTION: In this magnetic field correction device for nuclear magnetic resonance, a static magnetic field map function (room temperature) obtained on the basis of the magnetic susceptibilities xRT21, xRT22, xRT24, xRT25, xRT26, xRT27-xRTn at room temperature of the central parts 21, 22, 24, 25, 26, 27-n of the NMR probe 4 and the shape structure M21, M22, M24, M25, M26, M27-Mn of each part, and a static magnetic field map function (VT temperature) obtained on the basis of magnetic susceptibilities at VT temperature xVT21, xVT22, xVT24, xVT25, xVT26, xVT27-xVTn and the shape structures M21, M22, M24, M25, M26, M27-Mn of the parts are preliminarily registered in a correction function setter 6A. The correction function setter 6A selects map correction data most suitable to the NMR probe 4 from these functions and transmits them to a magnetic field correction device 6, and the magnetic field correction device 6 corrects the total static magnetic field according to the VT temperature.
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