| 低速度零散的双阳极磁控注入电子枪设计 |
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| 引用本文： | 胡鹏, 孙迪敏, 蒋艺, 等. 低速度零散的双阳极磁控注入电子枪设计[J]. 强激光与粒子束, 2013, 25: 671-674. doi: 10.3788/HPLPB20132503.0671 |
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| 作者姓名： | 胡鹏 孙迪敏 蒋艺 陈洪斌 孟凡宝 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 四川 绵阳 621 900;;;2.中国工程物理研究院 研究生部, 四川 绵阳 621 900 |
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| 摘 要： | 根据0.14 THz共焦波导回旋行波管对电子枪的要求，完成了双阳极磁控注入电子枪的设计。使用PIC软件对理论设计得到的结构参数进行了模拟优化，最终得到该枪的电子注横纵速度比为0.75，纵向速度零散1.33%。讨论了电极形状、阴极磁场、控制极电压及发射电流对电子注性能的影响，结果表明，设计过程中应对它们进行充分的优化。
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| 关 键 词： | 太赫兹 回旋行波管 双阳极磁控注入枪 横纵速度比 速度零散 |
| 收稿时间： | 2012-06-19 |
| 修稿时间： | 2012-09-25 |
Design of double-anode magnetic injection with low velocity spread |
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| Hu Peng, Sun Dimin, Jiang Yi, et al. Design of double-anode magnetic injection with low velocity spread[J]. High Power Laser and Particle Beams, 2013, 25: 671-674. doi: 10.3788/HPLPB20132503.0671 |
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| Authors: | Hu Peng Sun Dimin Jiang Yi Chen Hongbin Meng Fanbao |
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| Affiliation: | 1. Institute of Applied Electronics,CAEP,P.O.Box 919-1016,Mianyang 621900,China;;;2. Graduate School of China Academy of Engineering Physics,Mianyang 621900,China |
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| Abstract: | A double-anode magnetic injection gun (MIG) was designed to satisfy demands of the 0.14 THz confocal gyro-travelling-wave tube (TWT). According to analytic trade-off equations, the initial parameters were determined first, then simulations and refinement were done with the PIC software. As a result, the horizontal-to-vertical velocity ratio of this MIG is 0.75, the axial velocity spread is 1.33%. The effect of some parameters, such as electrode shape, cathode magnetic field, mod-anode voltage and beam current on electron beam performance was discussed. The results indicate, all the parameters should be optimized sufficiently. |
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| Keywords: | terahertz gyro-travelling-wave tube double-anode magnetic injection gun horizontal-to-vertical velocity ratio velocity spread |
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