Spatiotemporal characteristics of nanosecond pulsed discharge in an extremely asymmetric electric field at atmospheric pressure
Spatiotemporal characteristics of nanosecond pulsed discharge in an extremely asymmetric electric field at atmospheric pressure作者机构：Key Lab of Materials Modification (Dalian University of Technology) Ministry of Education Dalian 116024 People's Republic of China
出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)
年 卷 期：2017年第19卷第6期
页 面：38-44页
核心收录：
学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
基 金：supported by the Key Project of Chinese National Programs for Research and Development(No. 2016YFC0207200) National Natural Science Foundation of China(Nos.51677019,51407022,51377014)
主 题：nanosecond pulsed discharge spatiotemporal emission spectrum reduced electric field breakdown mechanism
摘 要：In this paper,high resolution temporal-spatial diagnostics are employed to research the optical characteristics of nanosecond pulsed dielectric barrier discharge in needle-plate electrode ***-spatial distributions of discharge images,the emission intensities of optical emission spectra,and plasma vibrational and rotational temperatures are *** analyzing the evolution of vibrational and rotational temperatures in space and time dimensions,the energy distribution and energy transfer process in plasma are also *** is found that a diffuse structure with high density plasma concentrated in the region near the needle tip can be presented in nanosecond pulsed discharge,and an obvious energy transfer from electronic energy to vibration energy can be observed in each discharge pulse.
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