DocumentCode
432401
Title
Ion acceleration in vacuum arc cathode plasma jet with large rate of arc current rise
Author
Belis, I.I.
Author_Institution
Electrical Discharge and Plasma Laboratory, Department of Interdisciplinary Studies, Fleischman Faculty of Engineering Tel Aviv University, P. O. B. 39040, Tel Aviv 69978, Israel
Volume
1
fYear
2004
fDate
Sept. 27 2004-Oct. 1 2004
Firstpage
174
Lastpage
177
Abstract
A model of plasma acceleration in a high-current short pulse vacuum arc is developed. The mathematical description includes equations for the cathode spot and the plasma jet and it was solved for rate of current rise dI/dt in the range of 0.1 -10 GMs. It was shown that the plasma could be accelerated to the measured energy due to a gasdynamic mechanism. The cathode erosion rate determines the ion energy which depends on the ratio of the ion flu to the electron flu. The calculated cathode erosion rate varies from 200 to 10 μg/C when the ion energy increases from 0.1 to 10 keV.
Keywords
Acceleration; Cathodes; Electron emission; Energy measurement; Equations; Influenza; Kinetic theory; Plasma accelerators; Plasma measurements; Vacuum arcs;
fLanguage
English
Publisher
ieee
Conference_Titel
Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. XXIst International Symposium on
Conference_Location
Yalta, Crimea
ISSN
1093-2941
Print_ISBN
0-7803-8461-X
Type
conf
DOI
10.1109/DEIV.2004.1418633
Filename
1418633
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