Document Type
Article
Publication Date
2010
DOI
10.1063/1.3483935
Publication Title
Journal of Applied Physics
Volume
108
Issue
063305
Pages
1-6
Abstract
Plasma bullets generated by atmospheric pressure low temperature plasma jets have recently been an active research topic due to their unique properties and their enhanced plasma chemistry. In this paper, experimental insights into the plasma bullet lifetime and its velocity are reported. Data obtained from intensified charge-coupled device camera and time-resolved optical emission spectroscopy (OES) elucidated the existence of a weakly ionized channel between the plasma bullet and its source (such as the plasma pencil). Factors responsible for the inhibition of the propagation of the bullet, such as low helium mole fraction, the magnitude of the applied voltage, and the secondary discharge ignition time, are also revealed. A new technique is discussed to accurately measure the plasma bullet velocity, using time-resolved OES. This new technique shows that during its lifetime the plasma bullet goes through launching, propagation, and ending phases. In addition, it is noted that the plasma bullet exhibits an unstable behavior at the early beginning and late ending of the propagation.
Original Publication Citation
Karakas, E., & Laroussi, M. (2010). Experimental studies on the plasma bullet propagation and its inhibition. Journal of Applied Physics, 108(063305), 1-6. doi: 10.1063/1.3483935
Repository Citation
Karakas, Erdinc and Laroussi, Mounir, "Experimental Studies on the Plasma Bullet Propagation and Its Inhibition" (2010). Electrical & Computer Engineering Faculty Publications. 18.
https://digitalcommons.odu.edu/ece_fac_pubs/18
Included in
Bioimaging and Biomedical Optics Commons, Electrical and Computer Engineering Commons, Plasma and Beam Physics Commons