【摘要】 设计制作的等离子体辅助慢波振荡器光控脉冲馈气系统能以任意脉冲宽度给等离子体阴极电子枪馈气,同时以任意时间延迟提供触发信号给调制器,启动空心阴极辉光放电。系统应用了光纤传输控制信号以隔离150 kV直流负高压。用研制系统进行脉冲馈气条件下的电子枪放电实验结果表明,能满足设计和使用要求。更多还原

【Abstract】 The plasma-assisted slow-wave oscillator is a class of unique high-power microwave source,A class of fibre-optic controlled gases-puff system for plasma-cathode electron gun of the plasma assisted slow-wave oscillator is developed in this paper. Gases were injected into the hollow cathode, and the modulator is triggered at arbitrary delay to generate low-pressure glow discharge at the same time. And the discharge experiment of the electron gun in this system was presented. Operating on pulse-gas-puff-pressure at 0.28~0.4 Pa, representative discharge current up to 120~167 A, and transporting e-beam current up to 80 A.更多还原