Formation of a negative streamer in a sharply inhomogeneous electric field and a moment of generation of runaway electrons
The formation of a negative streamer during nanosecond and subnanosecond breakdown under conditions of a sharply inhomogeneous electric field was experimentally investigated. Studies were carried out at various air pressures using a four-channel ICCD camera and an ultrafast streak camera. In addition, a series of experiments was performed in which runaway electron generation was studied during streamer formation by measuring the dynamic bias current. It has been shown that the streamer velocity changes as it moves from an electrode with a small radius of curvature to the opposite plane electrode. Data on the instant streamer velocity have been obtained. It has been shown that runaway electrons are generated when the streamer starts.
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Keywords
пробой, наносекундный разряд, диффузный разряд, волна ионизации, стример, ток смещения, убегающие электроны, breakdown, nanosecond discharge, diffuse discharge, ionization wave, streamer, displacement current, runaway electronsAuthors
| Name | Organization | |
| Beloplotov D.V. | Institute of High Current Electronics SB RAS | rff.qep.bdim@gmail.com |
| Sorokin D.A. | Institute of High Current Electronics SB RAS | SDmA-70@loi.hcei.tsc.ru |
| Lomaev M.I. | Institute of High Current Electronics SB RAS | lomaev@loi.hcei.tsc.ru |
| Tarasenko V.F. | Institute of High Current Electronics SB RAS | VFT@loi.hcei.tsc.ru |
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