简介：Dielectricbarrierdischarge(DBD)excitatedbypulsedpowerisapromisingmethodforproducingnonthermalplasmaatatmosphericpressure.DischargecharacteristicinaDBDwithsaltwateraselectrodesbyahome-madeunipolarnanosecond-pulsepowersourceispresentedinthispaper.Thegeneratoriscapableofprovidingrepetitivepulseswiththevoltageupto30kVanddurationof70nsata300Ωresistiveload.Appliedvoltageanddischargecurrentaremeasuredundervariousexperimentalconditions.TheDBDcreatedbetweentwoliquidelectrodesshowsthatthedischargeishomogeneousanddiffuseinthewholedischargeregime.Spectradiagnosisisconductedbyanopticalemissionspectroscopy.Theairplasmahasstrongemissionfromnitrogenspeciesbelow400nm,notablythenitrogensecondpositivesystem.
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