NDLI: Time-Resolved Spectroscopy of Single Cathode Spots: Comparison of Cathode and Anode Position

Content Provider	IEEE Xplore Digital Library
Author	Methling, R. Popov, S. Batrakov, A. Uhrlandt, D. Weltmann, K.
Copyright Year	1973
Abstract	Optical emission of a single cathode spot in vacuum was studied to improve the understanding of cathode spot initiation and dynamics. Discharges with high reproducibility were generated by applying rectangular voltage pulses of 100-ns length to a liquid Ga-In-alloy cathode. In the first pulse, the cathode spot is ignited in vacuum, and its radiation is delayed by several tens of nanoseconds. In the second pulse of opposite polarity, the cathode spot at the former anode emits strong radiation almost immediately after the inversion of the current because of the ignition in the plasma-filled gap. Atomic and ionic line radiation is observed with slightly different delay of their intensity maxima in the first and the second spot ignition.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	2860
Ending Page	2861
Page Count	2
File Size	311899
File Format	PDF
ISSN	00933813
Volume Number	39
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cathodes Anodes Plasmas Discharges Vacuum arcs Delay vacuum breakdown Liquid metal electrodes spectroscopy vacuum arcs
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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