| 大回旋电子束双磁会切电子枪的设计 |
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| 引用本文： | 邹峰,薛谦忠,刘濮鲲.大回旋电子束双磁会切电子枪的设计[J].强激光与粒子束,2007,19(3):463-466. |
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| 作者姓名： | 邹峰 薛谦忠 刘濮鲲 |
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| 作者单位： | 1. 中国科学院 电子学研究所, 北京 100080； 2. 中国科学院 研究生院, 北京 100039 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 分析了Ka波段二次谐波回旋行波管双磁会切电子枪的理论模型，计算了电子枪的设计参数；采用EGUN软件进行模拟，设计出了产生大回旋电子束的双磁会切电子枪。该枪电压为70 kV，电流为3.35 A，电子束横纵速度比为1.62，速度零散为4.2%。给出了电子束速度比、速度零散沿轴线的分布，进而讨论了阳极电压对电子束性能的影响，结果表明选择适当的阳极电压和阴极磁场对得到好的电子束参量作用明显。
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| 关 键 词： | 高功率微波 大回旋电子束 双磁会切 电子枪 回旋管行波管放大器 |
| 文章编号： | 1001-4322(2007)03-0463-04 |
| 收稿时间： | 2006/9/11 |
| 修稿时间： | 2006-09-11 |
Design of large orbit gyrotron electron beam double-cusp gun |
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| ZOU Feng,XUE Qian-zhong,LIU Pu-kun.Design of large orbit gyrotron electron beam double-cusp gun[J].High Power Laser and Particle Beams,2007,19(3):463-466. |
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| Authors: | ZOU Feng XUE Qian-zhong LIU Pu-kun |
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| Institution: | 1. Institute of Electronics, Chinese Academy of Sciences, P.O.Box 2652, Beijing 100080, China;2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Theoretical model of a double-cusp gun for Ka-band second harmonic gyro-TWT amplifier was analyzed,and the electron beam performance parameters were calculated.Using EGUN simulation,a double-cusp gun producing large orbit gyration electron beam was designed with an anode voltage of 70 kV and a beam current of 3.35 A.The ratio of perpendicular to parallel velocity was 1.62 and its velocity spread was 4.2%.The distribution of electron beam velocity ratio and velocity spread on axis was discussed,and the effects of the anode voltage on electron beam performance was studied.The reseults show that proper anode voltage and cathode magnetic field are helpful in getting good electron beam parameters. |
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| Keywords: | High power microwave Large orbit gyrotron electron beam Double-cusp magnetic field Electron gun Gyro-TWT amplifier |
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