椭圆带状电子束聚焦方式
Focusing method of elliptical sheet beam
-
摘要: 分析了椭圆带状电子束空间电荷场分布，采用3维粒子模拟软件观察椭圆带状电子束的传输不稳定性。分别对采用周期凸起磁场结构和偏置周期凸起磁场结构聚焦椭圆电子束进行理论分析，并利用粒子模拟软件对聚焦效果进行仿真。通过对比研究发现：偏置型周期凸起磁场结构更适合用于抑制椭圆截面带状电子束的传输不稳定性。Abstract: In this paper, space-charge field distribution of elliptical sheet beam is derived. Then its Diocotron instability is observed using 3D PIC program. After that, transmission characteristics of the elliptical sheet beam transporting in periodical cusped magnet and offset-periodical cusped magnet are analyzed and simulated. Through comparison, it is concluded that offset-periodical cusped magnet is more suitable for restraining the Diocotron instability.
-
点击查看大图
计量
- 文章访问数: 1709
- HTML全文浏览量: 232
- PDF下载量: 423
- 被引次数: 0
下载:
