Abstract
The performance of argon surface-wave plasma columns generated at atmospheric pressure in capillary tubes has been tested under a wide range of total gas flow conditions, with special attention to column length and gas temperature as key parameters for the application of such discharges in material synthesis and/or modification and chemical analysis. Varying the total gas flow allows significant control over the total column length and gas temperature, thus modulating both the residence time and the efficiency of chemical processes taking place within the discharge. Moreover, an important connection between the physical mechanisms responsible for discharge sustainment in SWDs and gas flow has been experimentally proven.
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