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强流直流束的非线性传输

发表时间:2009-06-30  浏览量:3085  下载量:1859
全部作者: 吕建钦,赵小松
作者单位: 北京大学核物理与核技术国家重点实验室
摘 要: 以静电四极透镜为例,用Lie代数方法分析了强流直流束的非线性传输,得到粒子的二级近似轨迹。在理论分析的基础上编写了相应的计算程序。为使计算结果自恰,程序中把每个元件都分成小段,进行逐段迭代。最后引入一个实例,用所设计程序计算了由漂浮空间—静电四极透镜对—漂浮空间组成的低能束流传输系统的光路。用PIC方法做了同样的计算,两者非常符合。
关 键 词: 粒子加速器物理学;强流直流束;非线性轨迹;Lie代数方法
Title: Nonlinear transport of intense direct-current beam
Author: LV Jianqin, ZHAO Xiaosong
Organization: State Key Laboratory of Nuclear Physics and Technology, Peking University
Abstract: Nonlinear transport of intense direct-current (dc) beams in electrostatic quadrupoles was analyzed by the Lie algebraic methods, and the second-order approximate particle trajectories were obtained. Based on theoretical analysis results, a computer program was designed. In order to make the calculation results self-consistent, each element in the program was divided into pieces, and piecewise iteration was applied. As a practical example, a low energy beam transport system consisting of drift space-electrostatic quadrupole doublet-drift space was calculated. The results were tested by PIC calculation, and they agreed to each other.
Key words: physics of particle accelerator; intense direct-current beam; nonlinear trajectory; Lie algebraic method
发表期数: 2009年6月第12期
引用格式: 吕建钦,赵小松. 强流直流束的非线性传输[J]. 中国科技论文在线精品论文,2009,2(12):1280-1283.
 
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