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Article
Collision of Two Plasma Diffuse Jets with the Same and Opposite Front Polarities at Air Pressure of 1 Torr
In air at a pressure of 1 Torr, the regime of collision of plasma diffuse jets (PDJ) that consist of red streamers was studied. The PDJ were formed by sending voltage pulses at a frequency of 21 kHz in a quart...
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Article
Thin Luminous Tracks during a Nanosecond Discharge in a Nonuniform Electric Field
The glow of a nanosecond diffuse discharge between two tips with high spatial resolution has been studied. At atmospheric air pressure, as well as at pressures of 300, 100, and 30 Torr, a large number of thin ...
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Article
Small Excilamp with a Wave Length of 172 nm
The design and parameters of a compact excilamp with an original sealed-off emitter made of a quartz tube with an outer diameter of 21 mm are described. The characteristics of xenon radiation in the vacuum ult...
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Article
VUV Lasing in Hydrogen and Fluorine in Diffuse Discharges Formed by Runaway Electrons
The paper studies the parameters of stimulated VUV radiation generated by diffuse discharges formed in a strongly inhomogeneous electric field in mixtures of noble gases with addition of hydrogen and fluorine ...
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Article
Explosive Effervescence and Ablation of Polymethyl Methacrylate Under Irradiation with a Self-Focusing High-Current Electron Beam
The morphology of destructions occurring in polymethyl methacrylate under irradiation with the electron beam formed in the vacuum diode of an electron accelerator in the filamentation and self-focusing modes i...
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Article
Streamers Initiated by a Capacitive Discharge at Air Pressure 0.2–6 Torr
The paper presents a study of diffuse plasma jets (DPJs), which have a red color and consist of streamers (ionization waves). It has been found that plasma generated in air at pressures of 0.2–4 Torr by a repe...
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Article
Uniform Action of Plasma of a Nanosecond Pulsed High-Voltage Discharge on the Surface of a Flat Anode
The results of an experimental study of the effect of a plasma of a nanosecond pulsed high-voltage discharge in air at atmospheric pressure, excited in a sharply nonuniform electric field, on the surface of a ...
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Article
Cylindrical Streamers Formed in Air and Nitrogen at Low Pressures
The results of experimental studies of analogs of columnar red sprites are presented. As is known, the development of sprites is due to the formation of cylindrical streamers at an altitude of 50–100 km from s...
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Article
Change in Mechanism of Corona Discharge Formation in Atmospheric Air with a Negative Tip
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Article
Evolution of Negative Corona in the Discharge-Current Limitation Mode: Transition from the Pulsed-Periodic Mode to Steady-State Burning
The evolution of burning modes of a weak-current corona discharge in a diode filled with atmospheric air, having a pointed cathode and a flat anode, has been investigated. A theoretical description is performe...
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Article
Generation of Streamers in an Inhomogeneous Electric Field under Low Air Pressure
The conditions for generation of red streamers at an atmospheric air pressure of 0.1–10 Torr are experimentally studied. Streamers of tens of centimeters in length are generated from the plasma of an electrode...
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Article
Runaway Electrons at the Formation of a Positive Ionization Wave in Nitrogen and Air
The generation of runaway electrons (REs) at a subnanosecond breakdown of a “plane–needle” gap caused by the development of a positive ionization wave starting from a grounded needle electrode (anode) has been...
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Article
Open AccessA Three-Section Subnanosecond Electron Accelerator
The design of a subnanosecond accelerator composed of three sections and a gas-filled diode and results of its testing are presented. The three sections of the accelerator are a double forming line, a ferrite ...
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Article
On the Mechanism of Generation of Trichel Pulses in Atmospheric Air
Discharge current pulse profiles have been recorded with a subnanosecond time resolution for a corona discharge from a negative-polarity needle functioning in the Trichel pulse regime. The optical characterist...
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Article
Duration of the Runaway Electron Beam at a Subnanosecond Leading Edge of the Voltage Pulse
The conditions have been studied, under which, during a subnanosecond breakdown of centimeter-length gaps filled with air at atmospheric pressure, current pulses of a runaway electron beam (RAEB) of a minimum ...
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Article
Formation and Transition of Wide Streamer Into Diffuse Discharge During Breakdown in Argon and Nitrogen
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Article
Analysis of Dynamics of Atmospheric Discharges Using Data on Cylindrically and Spherically Shaped Streamers
The sequence of occurrences of different atmospheric discharges (lightning, elve, and blue jet) shown on video recorded onboard the International Space Station is analyzed. Experimental data on the formation o...
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Article
Spectral and Amplitude–Time Characteristics of the Cherenkov Radiation upon Excitation of Transparent Materials by an Electron Beam
The interest in studying characteristics of the Vavilov–Cherenkov radiation (VCR) increased in connection with works on creation of runaway electron (RE) detectors for tokamak type facilities. The survey prese...
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Article
Vavilov–Cherenkov Radiation and Pulsed Cathodoluminescence in Poly(methyl methacrylate) Excited by a Subnanosecond Electron Beam
We have studied the spectral and amplitude–kinetics characteristics of emission from poly(methyl methacrylate) (PMMA) excited by pulsed electron beams with particle energies up to 300 and 450 keV. Vavilov–Cher...
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Article
Generation of Two Pulses of Runaway Electron Beam Current
Conditions for generation of two pulses of a runaway electron beam current upon breakdown of tip–plane and tube–plane gaps in high-pressure air, nitrogen, and helium are studied. Three regimes of generation of...
