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Applied Physics Letters / Volume 96 / Issue 22 / PLASMAS AND ELECTRICAL DISCHARGES

Appl. Phys. Lett. 96, 221501 (2010); http://dx.doi.org/10.1063/1.3442509 (3 pages)

Production of highly ionized species in high-current pulsed cathodic arcs

R. Sanginés, A. M. Israel, I. S. Falconer, D. R. McKenzie, and M. M. M. Bilek

School of Physics, University of Sydney, 2006 New South Wales, Australia

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(Received 26 March 2010; accepted 11 May 2010; published online 1 June 2010)

Time resolved optical diagnostic techniques were used to study the production of highly ionized species in aluminum plasma produced by a centered-triggered high-current pulsed cathodic arc. Controlling the spacing between cathode spots enabled a correlation between a reduction in the mean charge state and an increase in the spacing of cathode spots to be observed. As the cathode current was increased, the distances between spots were reduced and these charge states were produced for longer times. Strong cathode spot coupling is proposed as a mechanism for the production of high charge states.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

aluminium, arcs (electric), ionisation, plasma diagnostics, plasma sources, plasma transport processes

PACS

  • 52.50.Dg

    Plasma sources

  • 52.80.Mg

    Arcs; sparks; lightning; atmospheric electricity

  • 52.25.Jm

    Ionization of plasmas

  • 52.25.Fi

    Transport properties

  • 52.70.Kz

    Optical (ultraviolet, visible, infrared) measurements

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3442509

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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