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Video Spectroscopy of Vacuum Arcs During Transition Between Different High-Current Anode Modes
This paper presents spectroscopic results of high-current anode phenomena in a vacuum arc discharge between CuCr electrodes. AC (alternative current) 50-Hz and 10-ms pulsed dc (direct current) areExpand
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Anode Temperature and Plasma Sheath Dynamics of High Current Vacuum Arc After Current Zero
This paper addresses the behavior of a high-current vacuum arc after current zero (CZ). Langmuir probes operating in the electron saturation current mode are used to detect the time of arrival of theExpand
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Impact of Different Vacuum Interrupter Properties on High-Current Anode Phenomena
This paper presents the impact of current waveform and frequency on the formation of high-current anode phenomena in a vacuum interrupter experiment. Different waveforms including the alternativeExpand
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Spectroscopic Investigation of a Cu—Cr Vacuum Arc
Experiments on high-current arcs carried out in an ultrahigh vacuum chamber are presented in this paper. For contact separation the lower electrode is moved by a mechanical-pneumatic deviceExpand
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Optical and Electrical Investigation of Transition From Anode Spot Type 1 to Anode Spot Type 2
This paper presents differences between anode spot type 1 and type 2 and the discharge conditions for a transition from anode spot type 1 to type 2 are investigated by means of optical and electricalExpand
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Electrohydrodynamic phenomena on the explosive-emission liquid-metal cathode
The paper describes the results of a direct experimental observation of the development of an electrohydrodynamic instability at an explosive-emission liquid-metal cathode along with a theoreticalExpand
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Determination of Cr Density After Current Zero in a High-Current Vacuum Arc Considering Anode Plume
Results of broadband absorption spectroscopy in high-current vacuum arcs after current zero (CZ) are presented. Vapor density of atomic Cr is determined within 3 ms after CZ in cases with an anodeExpand
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Radiation-hard KS-4V glass and optical fiber, manufactured on its basis, for plasma diagnostics in ITER
Transmission spectra and optical losses before and after γ-irradiation (60Co) at a dose up to 11 MGy in 1 cm thick glass plates and in “all-silica” type optical fibers were examined. KS-4V, KU-1,Expand
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Investigation of the erosion drop fraction for liquid-metal explosive-emission cathodes
The velocity spectrum of drops emitted by a liquid-metal explosive-emission cathode has been investigated. A relation between the sizes of the drops and their maximum velocities has been found forExpand
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The Studies of a Vacuum Gap Breakdown after High-Current Arc Interruption with Increasing the Voltage
Vacuum-gap breakdown has been studied after high-current arc interruption with a subsequent increase in the transient recovery voltage across a gap. The effects of factors, such as the rate of theExpand
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