VUV-VIS Imaging of High-Pressure Pulsed Volume Discharge in Argon

Spatial-time behavior of the transverse pulsed volume discharge in Ar at 4 bar is investigated with a pinhole-imaging technique. VUV Ar 2 * emission, UV-VIS continuum, and Ar* red lines are used for direct monitoring of the discharge homogeneity in the breakdown and recombination stages. Observed fr...

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Veröffentlicht in:	IEEE transactions on plasma science 2008-08, Vol.36 (4), p.958-959
Hauptverfasser:	Lissovski, A.A., Treshchalov, A.B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Argon Atmospheric pressure Breakdown Cathodes Continuums Discharge Electric breakdown Electrodes Electron emission electron-collisional mixing Electrons Electrostatic discharges Emission Emissions Fault location Gases Global warming hbox{Ar}_{2}^{\ast} excimers high-pressure discharge Homogeneity Monitoring Optical filters pinhole imaging Plasmas Transforms UV-VIS continuum VUV emission
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Beschreibung
Zusammenfassung:	Spatial-time behavior of the transverse pulsed volume discharge in Ar at 4 bar is investigated with a pinhole-imaging technique. VUV Ar 2 * emission, UV-VIS continuum, and Ar* red lines are used for direct monitoring of the discharge homogeneity in the breakdown and recombination stages. Observed fragmentation of the discharge into separate zones is connected with the dynamical change of the electron emittance of electrodes. Additional electrons, produced during secondary excitation pulses, transform effectively the reservoir of long-lived triplet Ar 2 * molecules to fast-emitted singlet Ar 2 * excimers.
ISSN:	0093-3813 1939-9375
DOI:	10.1109/TPS.2008.925541