The Optimal Design of Passive Shimming Elements for High Homoge-neous Permanent Magnets Utilizing Sensitivity Analysis

This paper presents a useful and simple method to design the passive shiming system forhomogeneous permanent magnets based on numerical optimization. To simulate the effects of manu-is suggested. Then, the optimal design model of a passive shim system is set up to correct the deriva-tive of field homogeneity. The numbers, sizes and locations of the passive shims are optimized by the steepest descent algorithm combined with design sensitivity analysis. Two implementations show that the proposed method can achieve the required homogeneity of the field with the minimum quantity of ferromagnetics. KCI Citation Count: 0