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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：3679 下载量：1952
| 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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