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(a) Schematic of a ten-jet atmospheric plasma array with individual ballasts, (b) its image with a screwdriver as the substrate, and (c) its image with a surgical tissue forceps as the substrate.
(a) Time traces of the applied voltage, the total discharge, and two individual jet currents; (b) the total current dependence of the applied voltage. The substrate is a 10° sloped PVC substrate.
Images of the APGD jet array onto a 10° sloped PVC substrate with exposure times of (a) 1/15 s and (b) 10 ns.
(a) Schematic of a light-isolation device and its integration to the light-collecting fiber cable to a spectrometer. Labels a, b, and c mark the substrate-interception points of three consecutive plasma jets in the jet array. (b) Optical emission of one firing plasma jet measured by scanning the light-isolation device over 3.5 mm either side of the jet.
Optical emission from (a) each of the ten jets in the jet array and from (b) a scanning single jet, as well as (c) the spatial variation in optical emission as a function of the slope of the PVC substrate plate for the jet array (blue) and for the single jet (red).
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