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Atmospheric-pressure non-equilibrium plasma jets have recently received a major attention due to their widespread applications in surface and materials processing, biomedical engineering, and medicine. The discovery of fast-propagating plasma bullets opens an ex citing possibility to control sm all bits of plasma sover sub-microsecond and possibly even nanosecond t ime scales. However, this fascinating...
Atmospheric pressure non-equilibrium plasma jets (APNP-Js) generate plasmas in open space rather than in confined discharge gaps and are promising for applications in materials processing, nanotechnology, and plasma medicine. High-speed photographs have shown that the plasma plumes are in fact composed of bullet-like plasma volumes travelling at speeds of 104-105 m/s. It is now generally agreed that...
Ring-shape is one of the feature characteristics of plasma bullet. However regarding the mechanism of the ring-shape structure of the plasma bullet, it is still not clear. In this paper, a series of special designed experiments are carried out to investigate the mechanism of the ring-shape structure of the plasma bullet. The typical ring-shape structure can be seen in Fig. l. In these experiments,...
Plasma induced by electron beam (EB) have been receiving widely attentions for its attractive features compared with traditional plasma generation techniques such as dielectric barrier discharge, electron cyclotron resonance and the surface wave1. This plasma source has higher ionization and dissociation efficiencies and can generate large scale non-equilibrium plasma at high pressure. Besides, by...
Recently, several groups worldwide have proposed that the APNP driven by short pulses have several advantages over the traditional discharge driven by kHz voltages, including higher energy efficiency for ozone synthesis and UV power output, relative easier to generate diffuse plasma, better power transfer efficiency to the plasma and so on[1–2]. It is generally assumed that short pulses have a short...
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