摘要详情

ID / 提交时间

68 / 2022-06-29 11:47:56

标题

Measurements of Electric Field in Atmospheric Pressure Argon Plasma Jet Under Different Active Gas Types and Concentrations by the E-FISH

关键字

E-FISH,Electric field measurement,Low-temperature plasma

主题及专题

High Magnetic Field Engineering and Fusion Technology > Fusion and Plasma research

状态

全文录用

作者

Jingyi Luo / School of Electrical Engineering； Huazhong University of Science and Technology

Nie Lanlan / Huazhong University of Science and Technology ;school of Electrical and Electronic Engineering

摘要

Low-temperature plasma is under intensive investigation for many applications in biomedical, materials, environmental and chemical engineering. Mastering the non-invasive electric field measurement and diagnosis method of plasma has positive significance for the exploration of the mechanism of plasma in biology. In the paper, the effect of working gas types (O₂and N₂) and concentrations on the electric field of Ar plasma jet is reported, and mothed of electric field-induced second harmonic (E-FISH) is used for the measurement work. Measuring results indicate that electric field intensity of Ar plasma jet first rise and then fall with the increase of the concentration of O₂/N₂. And the maximum electric field intensity of the argon plasma jet mixed with O₂/N₂is 12.76kV/cm and 13.28kV/cm, which appears at the concentration of 0.1% and 0.7%, respectively. The analysis of collision ionization, adsorption ionization and Penning ionization help to understand this phenomenon.