Atmospheric-pressure plasma jet

摘要

The present invention is related to an atmospheric-pressure plasma jet comprising A tubular device comprising a central cylindrical metal electrode (2) and an outer cylindrical metal electrode (1), said cylindrical metal electrodes (1,2) being coaxial and defining a plasma discharge lumen, said tubular device having an open end and a closed end said plasma discharge lumen being open to the atmosphere at said open end and comprising a gas flow feed opening at said closed end a dielectric material (3) interposed between said central cylindrical metal electrode (2) and said outer cylindrical metal electrode (1),
characterised in that said dielectric barrier is radially extended at said open end.