What question did this study set out to answer?

To investigate the physical dynamics and propagation mechanisms of a cold atmospheric pressure plasma plume generated by submicrosecond high-voltage pulses.

September 15, 2006Journal of Applied Physics

Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses

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Authors

XLXinpei LuHebei Agricultural University MLMounir LaroussiNorfolk State University

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Implication

Experimental investigation reveals that atmospheric plasma plumes propagate as high-speed plasma bullets driven by photoionization, suggesting mechanisms for room-temperature plasma applications.

Key Points

To investigate the physical dynamics and propagation mechanisms of a cold atmospheric pressure plasma plume generated by submicrosecond high-voltage pulses.
Operated a 'plasma pencil' device driven by high-voltage pulses of a few hundred nanoseconds at kilohertz repetition frequencies into ambient air.
Correlated current-voltage measurements with high-speed photography to track plume formation and velocity.
Applied a photoionization theoretical model to explain propagation kinetics under low electric field conditions.
Fast photography coupled with electrical measurements revealed the continuous-looking plasma plume is actually a discrete, bulletlike plasma volume moving at extraordinarily high velocities.
Photoionization mechanisms qualitatively accounted for sustaining the rapid forward propagation kinetics of the plasma bullet in weak electric fields.

Cite This Study

Lu et al. (2006) studied this question.

synapsesocial.com/papers/6a7568d4e239d27fbe0331a8 https://doi.org/10.1063/1.2349475

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Implication

Experimental investigation reveals that atmospheric plasma plumes propagate as high-speed plasma bullets driven by photoionization, suggesting mechanisms for room-temperature plasma applications.

Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses

Discussion

Member takes

Implication

Key Points

Cite This Study

Dynamics of an atmospheric pressure plasma plume generated by submicrosecond voltage pulses

Discussion

Member takes

Implication

Key Points

Cite This Study

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