高功率低速度零散单阳极磁控注入电子枪的研究
Study of a High-Power Single-Anode Magnetron Injection Gun with Low Axial Velocity Spread
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摘要: 该文利用基于绝热压缩原理和角动量守恒理论的解析方程组，在对电子枪相关参量分析的基础上，研究一种阴极采用鼻状辅助聚焦极的单阳极磁控注入电子枪。通过电子光学软件EGUN-226对电子枪结构进行优化设计，比较分析了不同横纵速度比对电子注轴向速度零散的影响。结果表明这种结构的电子枪可以适应比较大的电流应用。
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关键词:
- 单阳极; 磁控注入电子枪; 回旋管
Abstract: According to a set of analytic equations based on adiabatic compression theory and angular momentum conservation, a single-anode Magnetron Injection Gun(MIG) with a nose-shape accessorial focus pole is studied in this paper. The parameters of the single-anode MIG are optimized through computer simulation with an electron trajectory code (EGUN226). The effect of the ratio of transverse velocity and longitudinal velocity on axial velocity spread is analyzed, which shows that a high-quality electron beam with large and low axial velocity spread can be realized for large current application. -
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