Vol. 27, issue 04, article # 7

Abstract:

This paper presents the formation and decay of diffuse “channels” of a corona discharge in atmospheric pressure air using modulated voltage pulses. Photomutipliers, a high-speed camera, and a copper bromide vapor laser monitor are used to register the radiation from the corona discharge. It is shown that the radiation of corona discharge diffuse “channels” is modulated in time and the pulse repetition frequency is twice as high as the voltage pulse modulation frequency (∼ 290 kHz). It is also demonstrated that at a corona discharge channel curves the breakdowns can occur over a short distance, which reduces the blurring of the channel.

Keywords:

corona discharge in atmospheric pressure air, formation and decay of "channels", optical radiation

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