Work

Inhibition and promotion of quasi-uniform to filamentary discharge transition in negative repetitive nanosecond surface dielectric barrier discharge

Year: 2026

Type: article

Abstract: The transition from quasi-uniform to filamentary modes in a repetitive nanosecond surface dielectric barrier discharge under atmospheric pressure was studied. Raising the repetition frequency can trigger a transition from quasi-uniform to filamentary mode after several pulses, but systematic study of this repetitive discharge transition remains limited. Our focus encompassed both discharge morphology and electrical characteristics, leading to two main findings. First, by analyzing the current and deposited energy waveforms, we identified three characteristic frequency ranges corresponding to the discharge modes. Notably, within the 5–8 kHz range, we observed non-monotonic changes in the propagation distance, the current amplitude, and the deposited energy, which are associated with the discharge transition. Second, the count of current extrema in the primary discharge process changed only during the transition to the filamentary mode, and remained stable in the steady discharge mode. Additionally, we present a discharge mode control curve outlining parameter windows for the discharge modes. This curve facilitates the optimization of pulse power supply and control schemes in practical applications.

Source: Physics of Plasmas

DOI: 10.1063/5.0306716

Authors: Yaqi Zhang, Yulin Guo, Yifei Zhu, Anbang Sun

Institution: Xi'an Jiaotong University

Language: English

Topic: Plasma Applications and Diagnostics

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: hybrid

Funders: State Key Laboratory of Electrical Insulation and Power Equipment, Central Universities in China

Awards: G4311019682, G8135592352