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本文叙述了空心阴极在电子轰击式汞离子推力器中的功能、推力器对空心阴极的要求。给出了阴极材料、结构、工艺及某些实验结果:即空心阴极的真空发射性能;阴极的放电形式及其伏安特性;阴极点火电压与阴极温度及通过阴极汞流率的关系,稳定放电时离子轰击阴极的加热特性。
This paper describes the hollow cathode in the electron impact mercury ion thruster function, the thrust of the hollow cathode requirements. The cathode material, structure, technology and some experimental results are given: the vacuum emission performance of the hollow cathode; the discharge form of the cathode and its volt-ampere characteristics; the relationship between the cathode ignition voltage and the cathode temperature and the cathode mercury flow rate, When the ion bombardment of the cathode heating characteristics.