%0 Journal Article
%T Experimental study of low-pressure nitrogen dielectric barrier discharge
%A Khatun
%A Hasina
%A Sharma
%A A.K.
%A Barhai
%A P.K.
%J Brazilian Journal of Physics
%D 2010
%I Scientific Electronic Library Online
%R 10.1590/S0103-97332010000400016
%X the electrical and spectral characteristics of a dielectric barrier discharge (dbd) are experimentally investigated in a sealed off coaxial cylinder filled with nitrogen at a pressure of 10 mbar. the discharge is a transient diffused glow at low frequency alternating voltage (60 hz) and changes to a filamentary mode at high frequency alternating voltage (35 khz). in case of pulsed voltage, the discharge is always transient diffused glow at any frequency. the intensity of a second positive system (sps) of the nitrogen molecule has been also measured to characterize the discharge excitation. the effective vibrational temperature is estimated from the sps vibrational band, ¦Äv = -2. it is concluded that the intensity of the sps of the nitrogen and the effective vibrational temperature depends upon the reduced electric field and the energy consumed per cycle by the device.
%K dielectric barrier discharge
%K second positive system
%K effective vibrational temperature.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-97332010000400016&lng=en&nrm=iso&tlng=en