Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium

摘要

A magnetic field adjusting apparatus calculates a location and the number of magnetic field adjusting pieces to be disposed, by means of a linear programming. An expected magnetic field uniformity is calculated based on the location and the number of adjusting pieces. The location and the number of the adjusting pieces for the expected magnetic field uniformity not greater than a predetermined value are displayed in a display portion. The worker disposes the adjusting piece on a magnetic field generator based on the display. If the expected magnetic field uniformity is greater than the predetermined value, an expected magnetic field uniformity is further calculated by using a direct search. A location and the number of the adjusting pieces that minimize the expected magnetic field uniformity are selected and displayed in the display portion. The worker disposes the adjusting piece on the generator based on the display.