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Numerical investigation of stability of low-current needle-to-plane negative corona discharges in air

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Observational analysis details pulseless negative corona discharges in needle-to-plane geometry, indicating conditions affecting stability.

The pulseless mode of negative corona discharges can occur over a wider voltage range, enhancing its experimental observation.
Current evolution shows transitions from quasi-harmonic oscillations to small amplitude or regular Trichel pulses.
The study finds that modeling aligns with experimental data on current-voltage characteristics and stability limits.
Insights into stochastic Trichel pulses demonstrate their occurrence under specific experimental conditions.

Ferreira et al. (2025) studied this question.

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Observational analysis details pulseless negative corona discharges in needle-to-plane geometry, indicating conditions affecting stability.