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Formation of spatially periodic fronts of high-energy electrons in a radio-frequency driven surface microdischarge

Dedrick, J.; O'Connell, D.; Gans, T.; Boswell, R. W.; Charles, C.


The generation of spatially periodic fronts of high-energy electrons (>13.48 eV) has been investigated in a radio-frequency surface microdischarge in atmospheric-pressure argon. Optical emission spectroscopy is used to study the Ar I 2p1−1s2 transition surrounding a filamentary microdischarge, both spatially and with respect to the phase of the applied voltage. The formation of excitation fronts, which remain at a constant propagation distance throughout the RF cycle and for the duration of the...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4789371


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