三圆筒透镜强流脉冲束传输模拟计算  

Simulation Calculation of Intense Pulsed Beam Transmission in Three-tube Lenses

作　　者：石海泉[1] 李超龙[1] 吕建钦[2] 

机构地区：[1]华东交通大学基础科学学院,江西南昌330013 [2]北京大学核物理与核技术国家重点实验室,北京100871

出　　处：《郑州大学学报（理学版）》2013年第1期69-72,76,共5页Journal of Zhengzhou University:Natural Science Edition

基　　金：国家自然科学基金资助项目;编号21063007;江西省科技支撑计划项目;编号2010BGB00602;江西省教育厅科研项目;编号GJJ11677;华东交通大学科研基金资助项目;编号10JC01

摘　　要：基于三圆筒透镜的强流脉冲束传输和高斯—赛德尔迭代等理论,编写了三圆筒透镜的束流传输模拟程序TTLS,TTLS适用于强流脉冲束在三圆筒透镜中传输的模拟计算.用模拟程序对不同流强束流在三圆筒透镜中的传输进行模拟计算,并对模拟结果进行了比较分析.模拟结果表明,随着束流流强的增大,空间电荷力增大,空间电荷力对束流包络曲线横向发散作用变显著;束流流强大于100 mA时,束流包络曲线发散比较明显.Based on the theory of intense pulsed beam transmission in three-tube lenses and Gauss-Seidel iteration,a computer simulation program TTLS was developed to calculate intense pulsed beam transmission in three-tube lenses.TTLS and other programs were used to simulate different current beam transmission in three-tube lenses,and the simulation results were compared and analyzed.The simulation results indicated that space-charge force increased with the rise of beam current,and beam envelope lateral divergence induced space-charge force became more notable.When beam current was larger than 100 mA,beam envelope lateral divergence was obvious.

关 键 词：强流脉冲束 三圆筒透镜 高斯—塞德尔迭代 空间电荷力 

分 类 号：O242.1[理学—计算数学] TL501[理学—数学]