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用目前国际上最灵敏的一种微光摄像机——电子倍增硅靶微光摄像机对笛形空心阴极放电的着火过程进行了观祭研究;对光发展的机理提出了理论解释;判明了放电的发展存在两个阶段,即阳极与阴极管外空间的自持暗放电阶段和放电通过小孔进入阴极管内的阶段。对应于这两个阶段,存在两个γ过程,即小孔周围金属表面上的γ过程和阴极内表面上的γ过程。根据上述结果,对目前流行的笛形空心阴极的几何参数设计准则进行了讨论。
At present, the most sensitive microdisplay camera in the world - electron multiplying silicon target microdisplay camera was used to observe the firing process of the flute-shaped hollow cathode discharge. The theoretical explanation of the mechanism of light development was put forward. There are two stages of development, that is, the self-sustaining and dark-discharging phases of the space outside the anode and cathode tubes and the phase of discharging into the cathode tube through the small holes. Corresponding to these two stages, there are two γ processes, the γ process on the metal surface around the pinhole and the γ process on the cathode inner surface. Based on the above results, the design criteria of the geometric parameters of the popular flute-shaped hollow cathode are discussed.