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Determination of electron properties of a helium atmospheric pressure plasma jet with a grounded metallic target
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2021-09-08 , DOI: 10.1002/ppap.202100092
Tuyen Ngoc Tran 1 , Cha‐Hwan Oh 1 , Wonwook Lee 1, 2
Affiliation  

An atmospheric pressure plasma jet (APPJ) was configured to generate helium atmospheric pressure plasma. A kilohertz AC voltage was applied to APPJ electrodes, and a grounded aluminum target was placed outside of a quartz tube on the plasma propagation axis. The electron temperature and density of APPJ were determined using the emissivity of continuum radiation in 380–500 nm spectra. Electron temperatures and densities for the helium plasmas with and without a target were compared. When the target was installed, the continuum radiation was enhanced, and electron density increased. Spatial distributions of electron temperature and density from the nozzle of the quartz tube to the target were examined. The electron temperature increased up to ∼2.75 eV, and electron density increased and decreased along APPJ propagation.

中文翻译:

用接地金属靶测定氦大气压等离子体射流的电子特性

大气压等离子体射流 (APPJ) 被配置为产生氦大气压等离子体。向 APPJ 电极施加千赫兹交流电压,并将接地的铝靶放置在等离子体传播轴上的石英管外部。APPJ 的电子温度和密度是使用 380-500 nm 光谱中连续辐射的发射率确定的。比较了有和没有目标的氦等离子体的电子温度和密度。安装靶后,连续辐射增强,电子密度增加。检查了从石英管喷嘴到目标的电子温度和密度的空间分布。电子温度升高至~2.75 eV,并且电子密度随着APPJ传播而增加和减少。
更新日期:2021-09-08
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