Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/433
Title: Spectroscopic study of low-frequency helium dbd plasma jet
Authors: Sretenović, Goran 
Krstic, Ivan B.
Kovačević, Vesna 
Obradović, Bratislav 
Kuraica, Milorad 
Keywords: Dielectric barrier discharge (DBD) plasma jet;electric field measurements;gas temperature;optical emission spectroscopy;plasma bullet propagation
Issue Date: 16-Oct-2012
Journal: IEEE Transactions on Plasma Science
Abstract: 
Atmospheric-pressure helium plasma jet has been studied by optical emission spectroscopy and electrical measurements. Streamer/bullet properties of the plasma jet are observed in the positive voltage half cycle, whereas in the negative jet, they operate more as a glowlike atmospheric-pressure discharge. This is revealed by spatially resolved measurements of intensity distribution of typical excited species and by electric field measurements based on Stark polarization spectroscopy. Obtained radial distribution of the axial electric field of the bullet shows that the ring-shaped structure of the light emission is a consequence of such electric field distribution. Gas temperature distribution over the jet is obtained by Boltzmann plot of rotational lines of N-{2}+ and OH bands. Gas temperature is found to be about 310 K, favorable for the biomedical applications. © 1973-2012 IEEE.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/433
ISSN: 0093-3813
DOI: 10.1109/TPS.2012.2219077
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