| 带状电子注的聚焦和传输 |
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| 引用本文： | 韩莹, 阮存军, 王勇, 等. 带状电子注的聚焦和传输[J]. 强激光与粒子束, 2010, 22(12). |
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| 作者姓名： | 韩莹 阮存军 王勇 赵鼎 |
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| 作者单位： | 1.中国科学院 电子学研究所, 高功率微波源与技术重点实验室, 北京 1 001 90;;;2.中国科学院 研究生院, 北京 1 00039 |
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| 摘 要： | 采用单粒子模型，对有限宽矩形带状电子注在周期会切磁场(PCM)、带偏移磁极的周期会切磁场(offset-pole PCM)和周期会切周期四极磁铁混合磁场(PCM-PQM)聚焦结构中传输的双平面聚焦，进行了详细的理论和数值分析研究。结果表明:PCM和offset-pole PCM聚焦结构对于实现带状电子注的双平面边缘聚焦比较困难，原因在于它们无法独立控制电子注水平和垂直两个方向的聚焦。PCM-PQM聚焦结构则非常有效地改善了聚焦，可以很好地实现带状电子注边缘的聚焦和均匀稳定的传输。
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| 关 键 词： | 带状电子注 单粒子模型 周期会切磁场 双平面聚焦 边缘聚焦 稳定传输 |
| 收稿时间： | 1900-01-01; |
Focusing and transport of sheet electron beams |
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| han ying, ruan cunjun, wang yong, et al. Focusing and transport of sheet electron beams[J]. High Power Laser and Particle Beams, 2010, 22. |
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| Authors: | Han Ying Ruan Cunjun Wang Yong Zhao Ding |
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| Affiliation: | 1. Key Laboratory of High Power Microwave Sources and Technologies,Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China;;;2. Graduate University of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | Sheet electron beams can transport stably in periodically cusped magnetic fields(PCMs). Two-plane focusing and edge focusing of the sheet beams with rectangular cross section of finite width are investigated using single-particle model. Theoretical and numerical analyses show that offset-pole PCM configuration is effective in edge focusing, while both PCM and offset-pole PCM configurations are incapable of two-plane edge focusing. The PCM-PQM(periodic quadrupole magnetic field) configuration has inherent advantages for independent adjustment of edge fields so that two-plane focusing and edge focusing can be accomplished in both transverse dimensions. |
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| Keywords: | single-particle model periodically cusped magnetic fields two-plane focusing edge focusing stable transport |
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