NDLI: Ion Erosion Rate in a High Current Vacuum Spark

Content Provider	IEEE Xplore Digital Library
Author	Gorbunov, S.R. Krasov, V.I. Paperny, V.L. Korobkin, Yu.V. Romanov, I.V.
Copyright Year	2006
Description	Author affiliation: Irkutsk State Univ. (Gorbunov, S.R.; Krasov, V.I.; Paperny, V.L.)
Abstract	Measurements of the ion erosion rate for copper cathode in the low-inductance vacuum spark are presented. The spark peak current was varied from 3 kA up to 13 kA therewith the current rise rate increases from $4middot10^{9}$ up to $1.5middot10^{10}$ A/s. The mean velocity of the cathode plasma flame was obtained by means of the passive collector time-of-flight measurements. It was shown that the velocity increases from $2middot10^{4}$ m/s up to 8middot10 $^{4}$ m/s with the discharge enhancement. Mechanical momentum of the plasma flame was measured with a ballistic pendulum, located beyond annual anode in the immediate vicinity. From these data the ion erosion rate was derived at range of peaks of the discharge current mentioned above. This parameter holds to within the accuracy of measurements throughout the range of the current variations. Its value is of $7middot10^{-5}$ g/Q and is close to the well-known one that has been obtained earlier in low-current vacuum arcs
Starting Page	404
Ending Page	406
File Size	3297967
Page Count	3
File Format	PDF
ISBN	1424401917
ISSN	10932941
DOI	10.1109/DEIV.2006.357317
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-25
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sparks Plasma measurements Cathodes Fires Fault location Copper Velocity measurement Mechanical variables measurement Anodes Current measurement
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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