In this study, the generation of cold atmospheric plasma jet was investigated in a coaxial double dielectric barrier configuration conjugated with a microsecond voltage pulse generator. The advanced reactor comprised two coaxial dielectric tubes of different diameters with two ring-shaped electrodes covering outside the larger tube. The electrodes were immersed in a liquid dielectric (i.e. transformer oil) in order to isolate them from the ambient air, which completely prevented the direct sparks formation between them within the investigated range of the applied voltage. The He discharge gas was fed to the inner tube while either air, N 2 , or O 2 as a shielding gas was introduced into the gap between the two dielectrics. The result revealed that with these shielding gases, the unwanted abnormal discharge in the inter-dielectric gap was extinguished and the plasma discharge occurred only in the He gas in the inner tube. Consequently, the electrical power deli...

中文翻译：

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同轴双介电势垒反应器产生冷大气等离子体射流

在这项研究中，在与微秒电压脉冲发生器共轭的同轴双电介质势垒结构中研究了冷大气等离子体射流的产生。先进反应堆包括两个直径不同的同轴电介质管，两个环形电极覆盖在较大的管子外部。将电极浸入液体电介质（即变压器油）中，以使其与周围空气隔离，这完全防止了在所研究的施加电压范围内电极之间直接形成火花。将He放电气体送入内管，同时将空气，N 2或O 2作为保护气体引入两个电介质之间的间隙中。结果表明，有了这些保护气体，介电间隙中不希望有的异常放电被熄灭，等离子体放电仅在内管中的氦气中发生。因此，电力需求...