Journal article
Laser‐induced fluorescence characterization of a multidipole filament plasma
Physics of fluids. B, Plasma physics, Vol.3(10), pp.2913-2921
10/1991
DOI: 10.1063/1.859924
Abstract
A multidipole filament discharge was characterized using sub‐Doppler laser‐induced fluorescence (LIF). The ion temperature was found to be T
i
=0.028±0.007 eV, measured in the center of an argon discharge. This stands in contrast to the much higher ion temperatures, 0.2<T
i
<0.5 eV, reported by researchers using gridded electrostatic energy analyzers. The discrepancy is attributed to the energy resolution of the detectors, with the LIF providing more accurate measurements. In another result, the metastable excited‐state ion density was found to scale linearly with the electron density and the discharge current under most conditions. This experiment also demonstrates that LIF can be used for basic plasma physics research in multidipole discharges.
Details
- Title: Subtitle
- Laser‐induced fluorescence characterization of a multidipole filament plasma
- Creators
- M. J Goeckner - University of Wisconsin–MadisonJ Goree - Max Planck SocietyT. E Sheridan - West Virginia University
- Resource Type
- Journal article
- Publication Details
- Physics of fluids. B, Plasma physics, Vol.3(10), pp.2913-2921
- DOI
- 10.1063/1.859924
- ISSN
- 0899-8221
- eISSN
- 2163-503X
- Number of pages
- 9
- Language
- English
- Date published
- 10/1991
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199758802771
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