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Abstract:

A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with density values smaller than the initial gas density values, but higher than the metallic ion densities. The neutrals are also strongly heated during the transient expansion stage of the metallic plasma. As a consequence, the ion kinetic energy is gradually delivered to the neutral gas so that the mean free path for ion-neutral elastic collisions is larger than the visible plasma ball radius which surrounds the arc. © 1998 IEEE.

Registro:

Documento: Artículo
Título:A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
Autor:Kelly, H.; Marquez, A.; Minotti, F.O.
Filiación:Institute de Fisica Del Plasma (CONICET), Departamento de Fisica, Facultad de Ciencias, Exactas Y Naturales (UBA), Ciudad Universitaria Pab. I, 1428 Buenos Aires, Argentina
Palabras clave:Fluid model; Ion-gas interaction; Vacuum arc; Cathodes; Electric arcs; Ion beams; Kinetic energy; Mathematical models; Plasma density; Vacuum technology; Multicathode spot vacuum arcs; Stationary fluid model; Beam plasma interactions
Año:1998
Volumen:26
Número:4
Página de inicio:1322
Página de fin:1329
DOI: http://dx.doi.org/10.1109/27.725165
Título revista:IEEE Transactions on Plasma Science
Título revista abreviado:IEEE Trans Plasma Sci
ISSN:00933813
CODEN:ITPSB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00933813_v26_n4_p1322_Kelly

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Citas:

---------- APA ----------
Kelly, H., Marquez, A. & Minotti, F.O. (1998) . A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc. IEEE Transactions on Plasma Science, 26(4), 1322-1329.
http://dx.doi.org/10.1109/27.725165
---------- CHICAGO ----------
Kelly, H., Marquez, A., Minotti, F.O. "A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc" . IEEE Transactions on Plasma Science 26, no. 4 (1998) : 1322-1329.
http://dx.doi.org/10.1109/27.725165
---------- MLA ----------
Kelly, H., Marquez, A., Minotti, F.O. "A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc" . IEEE Transactions on Plasma Science, vol. 26, no. 4, 1998, pp. 1322-1329.
http://dx.doi.org/10.1109/27.725165
---------- VANCOUVER ----------
Kelly, H., Marquez, A., Minotti, F.O. A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc. IEEE Trans Plasma Sci. 1998;26(4):1322-1329.
http://dx.doi.org/10.1109/27.725165