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Title: Non-linear macro evolution of a dc driven micro atmospheric glow discharge

Abstract

We studied the macro evolution of the micro atmospheric glow discharge generated between a micro argon jet into ambient air and static water. The micro discharge behaves similarly to a complex ecosystem. Non-linear behaviors are found for the micro discharge when the water acts as a cathode, different from the discharge when water behaves as an anode. Groups of snapshots of the micro discharge formed at different discharge currents are captured by an intensified charge-coupled device with controlled exposure time, and each group consisted of 256 images taken in succession. Edge detection methods are used to identify the water surface and then the total brightness is defined by adding up the signal counts over the area of the micro discharge. Motions of the water surface at different discharge currents show that the water surface lowers increasingly rapidly when the water acts as a cathode. In contrast, the water surface lowers at a constant speed when the water behaves as an anode. The light curves are similar to logistic growth curves, suggesting that a self-inhibition process occurs in the micro discharge. Meanwhile, the total brightness increases linearly during the same time when the water acts as an anode. Discharge-water interactions causemore » the micro discharge to evolve. The charged particle bomb process is probably responsible for the different behaviors of the micro discharges when the water acts as cathode and anode.« less

Authors:
Publication Date:
OSTI Identifier:
22486488
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ANODES; ARGON; BRIGHTNESS; CATHODES; CHARGE-COUPLED DEVICES; CHARGED PARTICLES; CURRENTS; GLOW DISCHARGES; IMAGES; NONLINEAR PROBLEMS; SIGNALS; SURFACES; VISIBLE RADIATION; WATER

Citation Formats

Xu, S. F., and Zhong, X. X., E-mail: xxzhong@sjtu.edu.cn. Non-linear macro evolution of a dc driven micro atmospheric glow discharge. United States: N. p., 2015. Web. doi:10.1063/1.4934710.
Xu, S. F., & Zhong, X. X., E-mail: xxzhong@sjtu.edu.cn. Non-linear macro evolution of a dc driven micro atmospheric glow discharge. United States. https://doi.org/10.1063/1.4934710
Xu, S. F., and Zhong, X. X., E-mail: xxzhong@sjtu.edu.cn. 2015. "Non-linear macro evolution of a dc driven micro atmospheric glow discharge". United States. https://doi.org/10.1063/1.4934710.
@article{osti_22486488,
title = {Non-linear macro evolution of a dc driven micro atmospheric glow discharge},
author = {Xu, S. F. and Zhong, X. X., E-mail: xxzhong@sjtu.edu.cn},
abstractNote = {We studied the macro evolution of the micro atmospheric glow discharge generated between a micro argon jet into ambient air and static water. The micro discharge behaves similarly to a complex ecosystem. Non-linear behaviors are found for the micro discharge when the water acts as a cathode, different from the discharge when water behaves as an anode. Groups of snapshots of the micro discharge formed at different discharge currents are captured by an intensified charge-coupled device with controlled exposure time, and each group consisted of 256 images taken in succession. Edge detection methods are used to identify the water surface and then the total brightness is defined by adding up the signal counts over the area of the micro discharge. Motions of the water surface at different discharge currents show that the water surface lowers increasingly rapidly when the water acts as a cathode. In contrast, the water surface lowers at a constant speed when the water behaves as an anode. The light curves are similar to logistic growth curves, suggesting that a self-inhibition process occurs in the micro discharge. Meanwhile, the total brightness increases linearly during the same time when the water acts as an anode. Discharge-water interactions cause the micro discharge to evolve. The charged particle bomb process is probably responsible for the different behaviors of the micro discharges when the water acts as cathode and anode.},
doi = {10.1063/1.4934710},
url = {https://www.osti.gov/biblio/22486488}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 22,
place = {United States},
year = {Thu Oct 15 00:00:00 EDT 2015},
month = {Thu Oct 15 00:00:00 EDT 2015}
}