Adjustment method for a superconducting magnet, a superconducting magnet is adjusted by this, and a magnetic resonance imaging apparatus having the same

摘要

The superconducting magnet adjustment method is based on the measurement results in the step of measuring the magnetic field in the static magnetic field space (S100) and the step of measuring the magnetic field. Based on the calculation result in the step (S110) of calculating the amount of shim arranged at each of the positions, and the step of calculating the plurality of arrangement positions of the shim and the amount of shim arranged at each of the plurality of arrangement positions. , And at each of the plurality of arrangement positions of the shim, at least one kind of shim among the plural kinds of shims is arranged or removed and shimmed (S120). In the step of calculating the amount of shim to be arranged at each of the plurality of arrangement positions of the shim, each of the plurality of arrangement positions of the shim corresponds to any one shim among a plurality of types of shims, or A constraint condition is imposed so that the amount of shim corresponding to a combination of any of a plurality of types of shims is calculated.