圆柱螺旋电磁Wiggler的场形分析  

FIELDS ANALYSIS OF HELICAL WIGGLER

作　　者：王贵荣[1] 杨震华[1] 

机构地区：[1]北京应用物理与计算数学研究所

出　　处：《强激光与粒子束》1998年第4期499-504,共6页High Power Laser and Particle Beams

基　　金：中国工程物理研究院科学基金

摘　　要：利用载流圆柱螺旋线系统内部的磁标势满足的Ｌａｐｌａｃｅ方程，以及系统磁矢势的积分形式，定出Ｌａｐｌａｃｅ方程通解的未知系数，求得左（右）旋单绕圆柱螺旋线的磁标势。应用磁场的叠加原理以及积分法，给出了各种类型如双绕、双双绕、交叉绕等螺旋形Ｗｉｇｇｌｅｒ的场形分布公式。The general solution of scalar magnetic potential at any interior point of a cylindrical helix wiggler was attained and the expression of magnetic field on axis was also given by solving Lapace's equation. The magnetic field distributions of several kinds of helical wiggler were derived from combination and superposition of the magnetic field, such as right-handed bifilar helix wiggler, left handed fifilar helix wiggler, crossed double helix wiggler, auto guide field wiggler, multiwound wiggler and asymmetric wound wiggler and so on.

关 键 词：磁标势 磁矢势 螺旋Wiggler 场形 自由电子激光 

分 类 号：TN753.92[电子电信—电路与系统]