Optical characteristics of the plasma of a nanosecond atmospheric-pressure volume discharge in a nonuniform electric field |
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Authors: | I D Kostyrya V S Skakun V F Tarasenko A V Fedenev |
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Institution: | (1) Institute of High-Current Electronics, Siberian Division, Russian Academy of Sciences, Akademicheskii pr. 4, Tomsk, 634055, Russia |
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Abstract: | Optical characteristics of the plasma of nanosecond volume discharges in air, nitrogen, krypton, argon, neon, and Ar/N2 and Ar/Xe mixtures at elevated pressures are investigated. The discharges are excited in a gap with a cathode of small curvature
radius. The waveforms and spectra of plasma emission from discharges in different gases in the 230-to 600-nm spectral range
are measured. Optical generation in an Ar/Xe mixture is achieved at an active length of 1.5 cm. A comparison is performed
of the spectral characteristics of the emission from nitrogen, krypton, argon, and neon excited by a volume discharge in a
nonuniform electric field, by a nanosecond electron beam, and by a pulsed volume discharge in a uniform electric field at
a high initial voltage. |
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