高匀场磁体校正线圈的设计方法  

A Design Method of Shim Coils for Highly Homogeneous Field Magnets

作　　者：励庆孚[1] 李益丰[1] 

机构地区：[1]西安交通大学

出　　处：《电工技术学报》1992年第4期25-30,共6页Transactions of China Electrotechnical Society

摘　　要：本文对高匀场磁体的轴向和径向校正线圈的设计方法进行了讨论。文章给出了考虑线圈导体分布宽度的轴向和径向校正线圈磁场的计算公式,在轴向校正线圈设计时,提出用一组线圈来补偿各次带状谐波磁场,因而可以大大减小线圈的数目。在径向校正线圈设计时,采用的方法具有较大的灵活性,可以减小线圈的长度又有较高的利用率。A design method of axial and radial shim coils for highly homogeneous field magnets is presented.The formulas for calculation of the magnetic field produced by axial and radial shim coils with an axial distribution width are derived.For the zonal harmonics field compensation,the suggested method uses only one set of circular coils,so that the number of the coils may be reduced significantly.For the tesseral harmonics field compensation a flexible and efficient method is proposed,which may reduce the axial lengths of the coils.

关 键 词：高均匀度磁场 校正线圈 设计 

分 类 号：TM153[电气工程—电工理论与新技术]