The effect of the pulse repetition rate on the fast ionization wave discharge

Huang, Bangdou; Carbone, E.; Takashima, Keisuke; Zhu, Xi; Czarnetzki, Uwe; Pu, Yunfei

doi:10.1088/1361-6463/aabf2d

Cited by 41 publications

(50 citation statements)

References 38 publications

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“…Huang et al [119, 120] conducted experimental and theoretical investigations on repetitively pulsed discharges, especially on the impact of PRF on discharge characteristics. In the pin‐to‐pin MD, a high residual charge density at high PRF tends to reduce the breakdown voltage, the peak power, and the peak electron density [119].…”

Section: Effects Of Waveform Parameters On Discharge Characteristicmentioning

confidence: 99%

“…Furthermore, for a repetitive fast ionisation wave discharge in low‐pressure helium, the generation of high‐energy electrons is significantly affected by PRF. It was discovered that with increasing PRF, the peak value of the axial electric field during the breakdown decreased; nevertheless, a reversed tendency appeared after the breakdown [120]. The electron energy distribution functions during and after breakdown were strongly non‐Maxwellian at low PRF, and transformed into Maxwellian‐like at high PRF [120].…”

Section: Effects Of Waveform Parameters On Discharge Characteristicmentioning

confidence: 99%

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Repetitively pulsed gas discharges: memory effect and discharge mode transition

Zhao

2020

High Voltage

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Repetitively pulsed gas volume and dielectric surface discharges have gained growing attention because of peculiar and exciting physics phenomena, high efficiency, high reactivity, and potential to obtain conventionally unachievable plasma properties. Nevertheless, incomplete understanding of fundamental mechanisms renders the repetitively pulsed discharge far less predictable and controllable, where the inherent memory effect and the discharge mode transition are universal challenges. In this topical review, the authors will explore the macroscopic characteristics of the gas gap breakdown and the surface flashover, state‐of‐the‐art mechanisms and dominant agents of discharge memory effects, operation regimes and transitions of the discharge mode, and how waveform parameters affect the pulsed discharge properties. Challenges and potential approaches for further understanding the memory effect and the discharge mode transition in the repetitively pulsed discharge are discussed.

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Section: Effects Of Waveform Parameters On Discharge Characteristicmentioning

confidence: 99%

Section: Effects Of Waveform Parameters On Discharge Characteristicmentioning

confidence: 99%

Repetitively pulsed gas discharges: memory effect and discharge mode transition

Zhao

2020

High Voltage

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“…was used to measure the field strength in nanosecond discharges (FIW) in nitrogen [110] and helium [111].…”

Section: Radiation Spectrum Of An Ionization Wavementioning

confidence: 99%

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Ionikh

2020

Plasma Phys. Rep.

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The review is devoted to studies of the processes and mechanisms of ignition of a glow discharge in tubes whose length significantly exceeds their diameter (long discharge tubes) at low pressures (~10 Torr and lower) and moderate voltage rise rates (~1 kV/μs and lower). The electric field in such tubes before a breakdown is substantially nonuniform. Therefore, a breakdown occurs after an ionization wave (or waves) passes through the discharge gap at a speed of ~105–107 cm/s. This makes the characteristics of the breakdown in long tubes significantly different from the breakdown between large and closely spaced electrodes, where the electric field is uniform before the breakdown and where the Townsend or, under strong overvoltage, streamer mechanism is realized. On the other hand, the nature of these processes is very different from those occurring in nanosecond discharges, which arise at voltages with a steepness of ~1 kV/ns and higher and are associated with high-speed (~109 cm/s) ionization waves. The review is based on the materials of experimental and computational works published from 1938 to 2020. Breakdown processes, optical and electrical characteristics of the discharge gap during breakdown, and the influence of the external circuit parameters and external actions (shielding and illumination by external sources of visible radiation) are analyzed.

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“…The ratio of N 2 to O 2 was 4:1. The initial electron density has an effect on the particle distribution and electric field in the discharge process [13,14], and the existing literatures of air discharge have a value between 10 9 to 10 14 /m 3 [15]. To make the simulation results reasonable, the initial electron density was set to 10 13 /m 3 .…”

Section: Dry Air Plasma Chemistry Reactionsmentioning

confidence: 99%

Numerical Simulation of Transient Surface Charging of Polymer Surface under DC Corona Considering Plasma Chemistry

Gao

Zheng

et al. 2021

IEEE Trans. Dielect. Electr. Insul.

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In this paper, the transient process of negative DC corona generated with needle to plane electrode covered by polymer film is investigated by numerical simulation considering air plasma chemistry. The variation in plasma species in corona discharge and the transient process of charge accumulation on the film are examined. Moreover, the electric field and the mean electron energy distribution on the sample surface are discussed. Obtained results indicate that during the corona process, O 2 + , O 4 + and N 4 + are the dominant positive ions, O 2 and O are the main negative ion and the neutral particle, respectively. The charge accumulation region expands along the radial direction and the charge density increases gradually. In addition, the discharge channel shape is changed from column to cone with time, which is attributed to the electric field modification achieved by the accumulated charges. In 2000 ns, the mean electron energy distribution on the polymer surface varies between 2.1 and 5.8 eV and finally stabilizes to 3.7 eV, thus the electrons can overcome the barrier at gas-solid interface and become injected into the polymer bulk. It is suggested that the polymer surface charging transient is highly associated with the plasma behavior.

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The effect of the pulse repetition rate on the fast ionization wave discharge

Cited by 41 publications

References 38 publications

Repetitively pulsed gas discharges: memory effect and discharge mode transition

Repetitively pulsed gas discharges: memory effect and discharge mode transition

Electric Breakdown in Long Discharge Tubes at Low Pressure (Review)

Numerical Simulation of Transient Surface Charging of Polymer Surface under DC Corona Considering Plasma Chemistry

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