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Article · AIP Advances · March 1, 2022

Spectral characteristics of a short glow discharge with a grid anode

Xingbao Lyu, Chengxun Yuan, Svetlana V. Avtaeva, Anatoly A. Kudryavtsev, Jingfeng Yao, Yangguo Liu

Svetlana Avtaeva
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Abstract

In a previous study, the characteristics of plasma generated by fast electrons behind a grid anode with short glow discharge were studied using numerical simulation. The source of the post-anode plasma electrons is considered to be the direct current glow discharge itself in the gap between a cathode and a grid anode. However, the electron attenuation of the microwave radiation in the post-anode space measured in experiments does not correspond to the numerical predictions. In this paper, the current–voltage characteristics of the short glow discharge with a grid anode and the spectral characteristics of the discharge in both the electrode gap and the space behind the grid anode are studied; the effective thickness of the plasma in the post-anode space is estimated using a spectral method.

Low-Pressure Plasma Processing and DiagnosticsVacuum and Plasma ArcsGyrotron and Vacuum Electronics Researchmicrowave irradiationcurrent-voltage characteristicsfast electrons

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