Spectroscopic characteristics of argon plasma produced by multistage pseudospark discharges

A measurement is made of the spectroscopic characteristics of argon plasma produced by multistage pseudospark discharges in a peculiar geometry which has not yet been reported in literature. High electron temperature, high peak current density, and a high degree of ionization are demonstrated in suc...

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Bibliographic Details
Published in:IEEE transactions on plasma science 1993-12, Vol.21 (6), p.731-738
Main Authors: Chuen-Huei Yang, Itoh, K., Shin-ichiro Takahashi, Obara, M.
Format: Article
Language:English
Subjects:
Arcs, sparks, lightning
Argon
Current density
Electric discharges
Electrons
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gas lasers including excimer and metal-vapor lasers
Geometry
Lasers
Optics
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma density
Plasma devices
Plasma measurements
Plasma properties
Plasma temperature
Spectroscopy
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Summary:A measurement is made of the spectroscopic characteristics of argon plasma produced by multistage pseudospark discharges in a peculiar geometry which has not yet been reported in literature. High electron temperature, high peak current density, and a high degree of ionization are demonstrated in such a device. The population number density of the upper and lower levels of 488.0, 476.6, 514.5, 351.1, and 363.8 nm transitions in ArII and ArIII are measured. The ultraviolet emission characteristics of pure Ar and Ar/He mixture plasmas are compared. An appreciable increase is observed in peak intensities of ArIII lines when nitrogen is added to Ar.< >
ISSN:0093-3813
1939-9375
DOI:10.1109/27.256793