On the Formation of a Bead Structure of Spark Channels during a Discharge in Air at Atmospheric Pressure

Victor Tarasenko; Dmitry Beloplotov; Alexander Burachenko; Evgenii Baksht

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On the Formation of a Bead Structure of Spark Channels during a Discharge in Air at Atmospheric Pressure

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The conditions for the formation of spark channels with a bead structure in an inhomogeneous electric field at different polarities of voltage pulses are studied.Voltage pulses with an amplitude of up to 150 kV and a rise time of≈1.5μs were applied across a 45-mm point-to-plane gap.Under these conditions,spark channels consisting of bright and dim regions(bead structure)were observed.It is shown that when current is limited,an increase in the rise time and the gap length does not affect the formation of the bead structure.It was found that an increase in the amplitude of voltage pulses leads to an increase in the length of beads.The appearance of the bead structure is more likely at negative polarity of the pointed electrode.The formation of spark channels was studied with a four-channel ICCD camera.

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来源
《大气科学研究(英文)》 |2020年第1期|P.1-8|共8页
作者
Victor Tarasenko; Dmitry Beloplotov; Alexander Burachenko; Evgenii Baksht;
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作者单位

Institute of High Current Electronics Siberian Branch(SB) Russian Academy of Sciences(RAS) 2/3 Akademicheskii Ave. Tomsk 634055 Russia;

Institute of High Current Electronics Siberian Branch(SB) Russian Academy of Sciences(RAS) 2/3 Akademicheskii Ave. Tomsk 634055 Russia;

Institute of High Current Electronics Siberian Branch(SB) Russian Academy of Sciences(RAS) 2/3 Akademicheskii Ave. Tomsk 634055 Russia;

Institute of High Current Electronics Siberian Branch(SB) Russian Academy of Sciences(RAS) 2/3 Akademicheskii Ave. Tomsk 634055 Russia;

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原文格式 PDF
正文语种 chi
中图分类计算技术、计算机技术;
关键词
Discharge in air; Formation of sparks; Bead structure; ICCD camera; Point-to-plane gap; Bead lightning;

机译：空气排放;火花形成;磁珠结构;ICCD摄像头;点对面间隙;磁珠闪电;

On the Formation of a Bead Structure of Spark Channels during a Discharge in Air at Atmospheric Pressure

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