Abstract
Experiments showed that an electric arc in helium between graphite electrodes (I=60–120 A; L=3–6 mm; P He=1–500 Torr) may exist in two different spatial-temporal modes: (i) a stationary mode with axisymmetric current channel and (ii) a nonstationary mode with two helical channels emerging from an anode spot and rotating at 10–20 kHz around the side surfaces of cylindrical electrodes.
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V. D. Shimanovich, I. P. Smyaglikov, and A. I. Zolotovskii, Inzh.-Fiz. Zh. 71, 669 (1998).
V. V. Azharonok, V. A. Gubkevich, A. I. Zolotovskii, et al., Inzh.-Fiz. Zh. 50, 669 (1986).
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 26, No. 11, 2000, pp. 80–83.
Original Russian Text Copyright © 2000 by Shimanovich, Smyaglikov, Zolotovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Pankovets, Chubrik, Goncharik.
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Shimanovich, V.D., Smyaglikov, I.P., Zolotovskii, A.I. et al. Two-channel helical arc formation between graphite electrodes at a reduced pressure. Tech. Phys. Lett. 26, 488–489 (2000). https://doi.org/10.1134/1.1262886
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DOI: https://doi.org/10.1134/1.1262886