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一、中和器空心阴极在推力器中的工作电子轰击式汞离子推力器组成部分、启动过程及正常运行,在文献[1]中,结合示意图1和图2作了简叙。汞离子推力器用中和器,如图1所示。由汽化器(5)绝缘器(6)和空心阴极(7)三部分组成。空心阴极为一气体放电电子源,当阴极加热到点火温度后。触持极(8)加上点火电压,阴极一触持极间首先着火放电。进而,放电扩展至汞离子束I_B。中和器阴极向离子束中发射与离子流等量电荷的电子流I_N,使推力器系统呈电中性。维持推力器稳定工作。
First, the neutral hollow cathode in the work of the thrusters Electron impact mercury ion thruster part of the start-up process and normal operation, in the literature [1], the combination of schematic 1 and Figure 2 made a brief description. Mercury ion thruster with neutralizer, shown in Figure 1. By carburetor (5) insulator (6) and hollow cathode (7) of three parts. Hollow cathode gas discharge electron source, when the cathode heated to the ignition temperature. Touch the pole (8) plus the ignition voltage, the cathode first contact discharge between the ignition. In turn, the discharge extends to the mercury ion beam I_B. The cathode of the neutralizer emits an electron current I_N equal to the ion flux in the ion beam to make the thruster system electrically neutral. Maintain the stability of thrusters.