An atmospheric pressure quasiuniform planar plasma jet generated by using a dielectric barrier configuration
An atmospheric pressure quasiuniform planar plasma jet generated by using a dielectric barrier configuration
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DOI：
10.1063/1.3599845
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发表时间：
2011-06
影响因子：
4
通讯作者：
Qing Li;H. Takana;Y. Pu;H. Nishiyama
中科院分区：
文献类型：
--
作者：
Qing Li;H. Takana;Y. Pu;H. Nishiyama
本文报道了一种稳定的非热准均匀平面等离子体射流，它起源于具有矩形出口的平面介质导管，并在大气压下发射到环境空气中。电流-电压特性，每正弦半个电压周期一个放电电流脉冲，表明放电不是丝状的。通过对喷流核心区除喷流边界外的光发射光谱的监测，表明其在横向上具有良好的空间均匀性。这可能是由于上游区域的高预电离所致，对传统的单流光非热等离子体喷流解释提出了挑战。
A stable nonthermal quasiuniform planar plasma jet, originating from a planar dielectric duct with a rectangular exit and issuing into ambient air at atmospheric pressure, is reported in the present work. Current-voltage characteristics, one discharge current pulse per sinusoidal half voltage cycle, show that the discharge is not filamentary. Its spatial uniformity in the transverse direction is shown to be excellent by monitoring optical emission spectra in the jet core region except jet boundaries. This is possibly resulted from high preionization in the upstream region, and it is a challenge to the traditional single streamer explanation for nonthermal plasma jets.