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Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 86, Issue 5, Pages 44–50
(Mi jtf6549)
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Plasma
Grid control over high currents in a cesium discharge with a cathode spot
V. B. Kaplan, A. M. Martsinovskiy, I. I. Stolyarov Ioffe Institute, St. Petersburg
Abstract:
We report on the results of investigation of a plasma switch with complete grid control in a discharge with a cathode spot on the liquid-metal cesium cathode without grid diaphragming. The retention of the working area of the grid relative to the anode area leads to an order-of-magnitude increase in the switching anode current (up to 20 A/cm$^2$ over the anode area) and a substantial (up to 100 V and higher) increase in the switching voltages. The use of the cathode jet makes it possible to reduce the working pressures of cesium vapor (down to 10$^{-3}$ Torr). We discuss the results of analysis of peculiarities of grid discharge quenching in such a switch, which make it possible to determine possible reasons for limitation of the working parameters of the switch and the ways of their further increase.
Received: 28.07.2015
Citation:
V. B. Kaplan, A. M. Martsinovskiy, I. I. Stolyarov, “Grid control over high currents in a cesium discharge with a cathode spot”, Zhurnal Tekhnicheskoi Fiziki, 86:5 (2016), 44–50; Tech. Phys., 61:5 (2016), 683–689
Linking options:
https://www.mathnet.ru/eng/jtf6549 https://www.mathnet.ru/eng/jtf/v86/i5/p44
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Abstract page: | 26 | Full-text PDF : | 5 |
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