强激光与粒子束2012，Vol.24Issue(8)：1970-1974,5.DOI:10.3788/HPLPB20122408.1970
强流电子束聚焦数值模拟
Particle-in-cell simulation on focusing of intense electron beam
董攀 1代志勇 1谢宇彤 1廖树清 1朱隽 1张篁1
作者信息
- 1. 中国工程物理研究院 流体物理研究所,四川 绵阳 621900
- 折叠
摘要
Abstract
The study uses the particle-in-cell method to simulate the focusing of intense electron beam with the thin magnetic lens. The focusing model of intense electron beam was established and to simulate one experiment on "Dragon-I" accelerator. The simulation result is very close to the experimental one, which proves the validity of the model. The influences of some parameters of electron beam on focusing were simulated. In the simulations, the best envelope diameter of incident paralled beams is 20. 0~ 22. 5 mm. For the effects of beam emittance and energy spread, the simulation results agree well with theoretical ones. Moreover, the focal spot of small size can be obtained, only when the envelope diameter and the phase of incident beams are matched.关键词
粒子模拟/强流电子束/薄磁透镜/聚焦Key words
particle-in-cell simulation/ intense electron beam/ thin magnetic lens/ focusing分类
数理科学引用本文复制引用
董攀,代志勇,谢宇彤,廖树清,朱隽,张篁..强流电子束聚焦数值模拟[J].强激光与粒子束,2012,24(8):1970-1974,5.
