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有限尺寸矩形截面螺线管轴向分量磁场的理论及模拟计算研究 预览

Studies of the axial magnetic field distribution for a rectangular solenoid with finite dimension
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摘要 在多层多匝矩形截面螺线管轴向分量磁场解析表达式难以求得的情况下,利用单匝矩形线圈及单层多匝矩形截面螺线管轴向分量磁场的解析表达式,采用切片求和的方法,求得了可用于软件编程的矩形截面螺线管轴向分量磁场分布的表达式,并编写了相应的Matlab计算程序.最终,利用所编写的计算程序,对各类小型加速器中应用较多的束流轨道校正磁铁轴向分量磁场的分布进行了计算,并与三维静态电磁场计算软件CST EM Studio的模拟结果进行了对比,两者符合较好. For the mutiturn and muhilayer solenoid with finite rectangular dimension, it is very difficult to obtain the analytical formula for the axial magnetic field distribution. Based on the analytical formulae for the single turn rectangular wire and that for the multitun and single layer rectangular solenoid, the sum expression of the axial magnetic field distribution for the the mutiturn and multilayer solenoid is obtained. A Matlab script is written based on the slice and sum method proposed in this paper. Finally, an analysis on the axial magnetic field distribution for a beam orbit corrector most applied at the low energy stage of the accelerators is done. The result calculated by the Matlab script and the numerical simulation result by CST EM studio agree well.
作者 裴士伦 赵世琦 李小平 PEI Shi-lun1, ZHAO Shi-qi1,2 , LI Xiao-ping1( 1. Laboratory of Particle Acceleration Physics & Technology, Institute of High Energy Physics, Chinese Academy of Sciences,Beijing 100049, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China)
出处 《大学物理》 北大核心 2017年第9期31-34,共4页 College Physics
基金 国家自然科学基金(11475201) 中国科学院青年创新促进会基金资助
关键词 矩形截面螺线管 轴向分量磁场 切片求和 束流轨道校正磁铁 CST EM STUDIO rectangular solenoid axial magnetic field slice and sum beam orbit corrector CST EM Studio
作者简介 裴士伦(1979-),男,河北辛集人,中国科学院高能物理研究所副研究员,主要从事直线加速器物理与微波技术研究工作.
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