脉冲放电射流辅助射频辉光放电研究

通过实验研究了脉冲放电射流辅助下大气压氦气射频辉光放电的电学和光学特性。采用组合电极结构，在射频放电前段增加脉冲电极，脉冲放电产生的射流以等离子体子弹形式注入射频放电区域，主要研究脉冲射流辅助射频放电的电流电压曲线、最低放电维持电压、放电强度和空间结构时空分布。研究结果表明:等离子体子弹经过射频放电区域后，由于等离子体子弹引入的活性粒子，会使射频放电区域等离子体强度增强；而射频放电最低维持电压也从0.93 kV降低至0.43 kV。

Enhancement of radio-frequency atmospheric glow discharge by pulsed plasma jet

This paper presents experimental study of the electrical and optical characteristics of the pulsed plasma jet enhanced radio-frequency(RF) atmospheric glow discharge. The combined electrode system was employed in the experiments by introducing pulse power electrode in the front of the radio frequency power electrode, and the plasma jet was injected into the RF discharge region in the form of plasma bullets. The waveforms of voltage and current,the minimum maintaining voltage of RF discharge, the spatio-temporal evolution of discharge spatial profile are studied. It is found that the discharge intensity of the radio frequency discharge is enhanced spatio-temporally by the introduction of plasma species with plasma bullet,and the minimum sustaining voltage of the RF discharge is reduced from 0.93 kV to 0.43 kV.