About this Research Topic
The interest in pulsed high-voltage discharges has been continuously growing in recent years due to incredible progress in diagnostic techniques such as x-ray spectrometry, coherent anti-Stokes resonance scattering, optical emission spectroscopy, etc. Also, modern pulsed power generators available in several laboratories allowed reaching regimes that were impossible 20 years ago. These plasmas have now been studied for a few decades for various applications such as gaseous lasers and switchers, generation of x-rays, plasma assisted combustion and ignition etc.
Depending on the voltage applied, background gas pressure and voltage rise time, different physical phenomena are involved and govern pulsed discharges. These include the generation of dense plasma filaments and streamers, and the generation of runaway electrons and x-rays. These processes define the discharge structure and typical time and spatial scales. The use of these discharges allows generating dense, sometimes fully ionized plasmas on the nanosecond time scale. These plasmas can be used for the generation of chemically active mixtures which have potential applications in medicine, combustion and electric industry.
In spite of active research during the last decades, many processes are still poorly understood, due to the short time and spatial scales of many of the processes involved. This makes difficult both the experimental diagnostics of these discharges and their numerical modeling and simulations. Without the understanding of fundamental principles of these discharges, further technological progress is impossible. The aim of this research topic is to present the state-of-the-art advances on the experiments and modeling of pulsed high-voltage plasmas. Topics which are expected to be covered in this thematic collection include:
• Application of the state-of-the-art diagnostic techniques for studies of high voltage discharges in pressurized gases
• Numerical modeling and simulations of pulsed plasmas in pressurized gases
• Applications of pulsed high-pressure plasmas
• Future directions in research of pulsed high-pressure plasmas.
The acceptable article types include 1) Original Research; 2) General Commentary; 3) Review and Mini Review; 4) Brief Research Report; 5) Perspective.
Dr. Dmitry Levko is a Senior Computational Plasma Scientist at Lam Research Corporation, Austin, Texas (USA). All other Topic Editors declare no competing interests.
Depending on the voltage applied, background gas pressure and voltage rise time, different physical phenomena are involved and govern pulsed discharges. These include the generation of dense plasma filaments and streamers, and the generation of runaway electrons and x-rays. These processes define the discharge structure and typical time and spatial scales. The use of these discharges allows generating dense, sometimes fully ionized plasmas on the nanosecond time scale. These plasmas can be used for the generation of chemically active mixtures which have potential applications in medicine, combustion and electric industry.
In spite of active research during the last decades, many processes are still poorly understood, due to the short time and spatial scales of many of the processes involved. This makes difficult both the experimental diagnostics of these discharges and their numerical modeling and simulations. Without the understanding of fundamental principles of these discharges, further technological progress is impossible. The aim of this research topic is to present the state-of-the-art advances on the experiments and modeling of pulsed high-voltage plasmas. Topics which are expected to be covered in this thematic collection include:
• Application of the state-of-the-art diagnostic techniques for studies of high voltage discharges in pressurized gases
• Numerical modeling and simulations of pulsed plasmas in pressurized gases
• Applications of pulsed high-pressure plasmas
• Future directions in research of pulsed high-pressure plasmas.
The acceptable article types include 1) Original Research; 2) General Commentary; 3) Review and Mini Review; 4) Brief Research Report; 5) Perspective.
Dr. Dmitry Levko is a Senior Computational Plasma Scientist at Lam Research Corporation, Austin, Texas (USA). All other Topic Editors declare no competing interests.
Keywords: High-Voltage Discharges, Nanosecond Pulse, Pulsed Plasma, Runaway Electrons, Plasma Chemistry, Breakdown, High Density Plasma, Laser Spectroscopy, Plasma Physics, Extreme Ultraviolet Lithography, Reactive Flows, Laser-Produced Plasmas
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