Investigation of the redistribution of the current in a nanosecond volume discharge after the appearance of a cathode spot
An investigation was made of the process of contraction of a nanosecond volume discharge in air with a homogeneous field distribution and a current density 500 A/cm2 when the gap was 0.7 cm and the pressure 76 torr. It was found that the appearance of a cathode spot in this volume discharge resulted in an effective contraction of the current into a spot and formation of a diffuse channel. A high-conductivity channel emerging from the cathode spot appeared when the current density in the diffusion channel above this spot reached (1–3)·105 A/cm2.
KeywordsField Distribution Volume Discharge Cathode Spot Homogeneous Field Diffuse Channel
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- 1.G. A. Mesyats, Yu. I. Bychkov, and V. V. Kremnev, Usp. Fiz. Nauk,107, 201 (1972).Google Scholar
- 2.G. A. Mesyats, Pis'ma Zh. Eksp. Teor. Fiz.,1, 885 (1975).Google Scholar
- 3.R. B. Baksht, Yu. D. Korolev, and G. A. Mesyats, Fiz. Plazmy,3, 652 (1977).Google Scholar
- 4.Yu. D. Korolev, V. A. Kuz'min, G. A. Mesyats, and V. P. Rotshtein, Zh. Tekh. Fiz.,49 410 (1979).Google Scholar