The experimental work reported here is devoted to the study of the luminous activity of a long DBD afterglow at atmospheric pressure. The discharge plasma is created in a commercially available (AcXys Technologies) reactor, using a N_2 flow of a few tens SL/min, whereas the luminous afterglow when channelled into a quartz tube extends at a distance of 50cm, finishing in a luminous arrow at the tube's exit. The luminous activity of the afterglow is studied by means of photomultiplier scans and optical emission spectroscopy.
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