期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Simulation Analysis of Intense Beam Transmission in Magnetic Lens
摘要/Abstract
由于强流束较强的空间电荷力,强流束传输一直是备受关注的问题.基于磁透镜的强流束传输、共轭梯度法和高斯-塞德尔迭代等理论,编写了磁透镜的束流传输模拟程序MAGLENS,适用于强流束在磁透镜中传输的模拟计算.在不同束流流强条件下,用MAGLENS与其他程序进行了模拟计算,并对模拟结果进行了比较分析.模拟结果表明:束流越强,空间电荷力越大,束流包络发散越明显,非自洽解与自洽解的偏离越显著.
Due to strong space-charge force of intense beam,intense beam transmission has been a issuethat received more concerns all the time.Based on theory of intense beam transmission in magnetic lens,conjugate gradient method and Gauss-Seidel iteration,a computer simulation code MAGLENS was devel-oped to calculate intense beam transmission in magnetic lens.MAGLENS and other codes were used to sim-ulate different current beam transmission in magnetic lens,and the simulation results were compared andanalyzed.The simulation results indicate that space-charge force increases with the rise of beam current,and the stronger beam current causes more apparent beam-envelope-lateral-divergence and the larger devia-tion between non-self-consistent solutions and self-consistent solutions.