高功率低速度零散單陽極磁控注入電子槍的研究
基金項(xiàng)目:
中國科學(xué)院知識創(chuàng)新項(xiàng)目資金資助課題
Study of a High-Power Single-Anode Magnetron Injection Gun with Low Axial Velocity Spread
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摘要: 該文利用基于絕熱壓縮原理和角動量守恒理論的解析方程組，在對電子槍相關(guān)參量分析的基礎(chǔ)上，研究一種陰極采用鼻狀輔助聚焦極的單陽極磁控注入電子槍。通過電子光學(xué)軟件EGUN-226對電子槍結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計(jì)，比較分析了不同橫縱速度比對電子注軸向速度零散的影響。結(jié)果表明這種結(jié)構(gòu)的電子槍可以適應(yīng)比較大的電流應(yīng)用。
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關(guān)鍵詞:
- 單陽極; 磁控注入電子槍; 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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