Work

Electrical and time-resolved spectroscopic characterization of pulsed discharge in soil matrices

Year: 2026

Type: article

Abstract: Non-thermal plasma technology is a transformative "green" tool for soil remediation, yet the underlying physics of discharge within complex soil matrices remains elusive. This work utilizes nanosecondresolved optical emission spectroscopy to decode the transient evolution of excited species during pulsed soil discharge. A striking asymmetry in discharge dynamics was discovered: when the pulse rise time exceeds 300 ns, multiple discharge events occur exclusively during the rising edge. Conversely, the falling edge strictly exhibits a monophasic event, and the pulse plateau remains optically and electrically quiescent. These findings not only enrich the fundamental understanding of multiphase plasma physics but also provide a theoretical framework for precision waveform tailoring and maximize the yield of targeted reactive species in environmental applications.

Source: Journal of Physics D Applied Physics

DOI: 10.1088/1361-6463/aeba96

Authors: Yong Yang, Yuxin Lu, Chuan Li, Ruohan Wu, Huanyu Shi, Jingxuan Zhang, Shuai Yang, Huan Chen

Institutions: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, State Grid Hubei Electric Power Co., Ltd. (China), State Grid Hubei Electric Power Company Electric Power Research Institute

Language: English

Topic: Plasma Applications and Diagnostics

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: bronze

OpenAlex ID: W7224102731

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