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Acceleration of Plasma Bullets by Grooved Dielectric Rod
IEEE Transactions on Plasma Science ( IF 1.3 ) Pub Date : 2020-09-01 , DOI: 10.1109/tps.2020.3012902
Farshad Sohbatzadeh , Reza Ebrahimnezhad Darzi , Saeed Mirzanejhad

In this work, we studied hollow cylindrical plasma bullets propagating along the grooved glass rod in a single electrode configuration. The plasma source was a cylindrical shell consisted of two coaxial glass cylinders. The surface of the inner cylinder was structured by creating grooves on its surface to investigate the plasma bullet acceleration through the traveling shell. The corresponding plasma jet was driven by a 6.2-kHz sinusoidal waveform using helium gas. Optical and electrical characteristics proved that the plasma jet was working in a stable bullet mode. The propagation speed of the hollow cylindrical bullet was evaluated along with the downstream of the jet axis inside and outside of the plasma carrier shell. The results showed that the charge associated with the bullets and corresponding root-mean-square (rms) value of the alternative current (ac) electric field were increased by creating the grooves on the path of the bullets. It was observed that the radiation intensity of the plasma was increased around each groove, too. The structured inner cylinder revealed that the dielectric properties play an essential rule in the plasma bullet propagation through tubes.

中文翻译:

带槽电介质棒加速等离子子弹

在这项工作中,我们研究了在单电极配置中沿带槽玻璃棒传播的空心圆柱形等离子子弹。等离子体源是一个圆柱形外壳,由两个同轴的玻璃圆柱体组成。内圆柱体的表面通过在其表面上创建凹槽来构造,以研究等离子子弹穿过行进壳的加速度。相应的等离子体射流由使用氦气的 6.2 kHz 正弦波形驱动。光学和电学特性证明等离子射流以稳定的子弹模式工作。空心圆柱子弹的传播速度与等离子体载体外壳内外的射流轴下游一起评估。结果表明,通过在子弹路径上创建凹槽,增加了与子弹相关的电荷和相应的交流电 (ac) 电场的均方根 (rms) 值。观察到等离子体的辐射强度在每个凹槽周围也增加了。结构化的内圆柱体表明,介电特性在等离子子弹通过管子的传播中起着重要的作用。
更新日期:2020-09-01
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