Electrode material splashing during the high-voltage nanosecond discharge in deuterium, hydrogen, helium, and argon at low pressure
D.A. Sorokin1, M.I. Lomaev1,2, V.F. Tarasenko1, B.A. Nechaev3, V.N. Padalko3, E.N. Shuvalov3
1Institute of High Current Electronics (IHCE) of Siberian Branch of the Russian Academy of Sciences, 2/3, Akademichesky Avenue, Tomsk, 634055, Russia
2Tomsk State University of Control Systems and Radioelectronics, 634050, Tomsk, Lenin Avenue, 40
3National Research Tomsk Polytechnic University, 634050, Tomsk, Lenin Avenue, 30
Keywords: material splashing, high-voltage nanosecond discharge, deuterated target, track
Abstract
During the high-voltage nanosecond discharge in a gap filled with deuterium, hydrogen, helium, and argon at a pressure of 1-60 torr, using a cylinder with lateral surface made of thin tungsten wires split at the end as a potential electrode and a flat deuterated zirconium target as a material splashing of electrodes was observed. Mainly, there is material splashing on the potential electrode for both positive and negative polarities of the pulser. As the gas pressure increases the reduction of the track lengths of fluttering from electrode hot glowing drops was observed.
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