基于数值优化方法的Halbach磁体无源匀场方法研究

李正喆, 郭亮, 任旭虎

A Passive Shimming Method for Halbach Magnet Based on Numerical Optimization Algorithm

LI Zhengzhe, GUO Liang, REN Xuhu

图1 Halbach磁体的规格.(a)本文设计的磁块规格（单位：mm），(b)磁块与非磁性材料块之间的机械配合示意图，(c)永磁块的磁化示意图，(d)本文设计的Halbach磁体阵列整体示意图

Fig. 1 Specifications for Halbach magnet. (a) The magnetic block’s specifications designed in this study (given in mm). (b) The schematic diagram of the mechanical coordination between magnetic block and non-magnetic material block. (c) Schematic diagram of the magnetization mode of the permanent magnetic blocks. (d) Overall schematic of the Halbach array designed in this study